1 +64 13 nebulous. Source: (366). (715). 2 IC 11. Disc. Barnard. R. Not identified. Probably of class C.2. 3 NGC 281. Disc. Barnard 1881 (43). FA 182, 183. (114, 194, 209, 216, 304, 3 366, 482, 486, 615 Pl 22, 630 Pl 20 Pl 26, 715). R. +55 191 = HD 5005. 4 a = IC 59. b = IC 63. Disc. Wolf, Barnard 1893. FA 183. (54, 69, 216, 366, 4 482, 486, 521, 603 Pl 4, 615 Pl 25, 630 Pl 20 Pl 26, 645, 715, 797). R. 4 Immediately north of the two well-known fan-shaped nebulae at {gam} Cass. 4 is a third mass of nebulosity 9'x4'. The three objects seem to be 4 connected by faint streaks. {gam} Cass +59 144 = HD 5394 = Boss 1117. 5 IC 155. Disc. Wolf 1893 (797). R. Not identified. Size (according to Wolf) 5 as IC 59. Fainter. Probably of class C.2. 6 IC 1795. Disc. Barnard. (93 Pl 1, 630 Pl 26 Pl 27). 6 R. The nebula apparently consists of three parts. 6 a = +61 411 with a fan-shaped appendix. 6 b = A thirteenth mag. star with ditto. 6 c = General background veil. 7 IC 1805. Disc. Barnard. (93 Pl 1 Pl 2, 194, 216, 482, 486, 571, 630 Pl 26 7 Pl 27, 726 No 27, 753). R. Nebulous cluster containing the BD stars: 7 +60 496-502, 504-509, 511-513. +60 502 = HD 15558. +60 504 = HD 15570. 7 +60 507 = HD 15629. The spectra of these stars are stated to be "perhaps 7 B0". There is a conspicuous condensation at +60 507. 8 IC 1831. Disc. Wolf 1905 (811). R. Not identified. Size : several square 8 degrees. Very faint. Irregular. Orientated chiefly NW to SE. 8 (According to Wolf). 9 a = IC 1848. Disc. Barnard. (194, 630 Pl 26, 753), R. The nebulosity may 9 possibly extend to the clusters (194) No 33 and No 34. HD stars within the 9 boundary of IC 1848: +59 548 = HD 17356. +59 552 = HD 17505 = Boss 3398. 9 +59 553 = HD 17520. +59 559 = HD 17688. 9 b =Emission field (726) No 29. R. Centered on +59 559. 9 c = +60 596 nebulous. Disc. Barnard. (93 Pl 2, 366, 630 Pl 26, 715). 9 d = Anon. 2h 45.8, +60{deg} 9'. R.(93) Pl 2: "About 5' north of it 9 (+60 596) is a fainter nebulous star). 10 IC 1851. Disc. Barnard. (93 Pl 2, 216). R. +57 651 = HD 17581 = Boss 3413. 11 IC 1871. Disc. Barnard. R. The Bergedorf spectral DM has +60 624 in the 11 position given by Barnard. This star seems to be very faintly nebulous on 11 (93) Pl 2. This identification, however, needs corroboration. 12 +31 597 = HD 21110 = Boss 4072 nebulous. Disc. Barnard. (91, 93 Pl 3, 366, 12 715). 13 +30 540 nebulous. Disc. Barnard. (91, 93 Pl 3). 14 +58 607 = HD 21389 = Boss 4140 nebulous. 14 Disc. Barnard. (93 Pl 2, 630 Pl 27). 15 +29 565 nebulous. Disc. Barnard. (91) p 255, where +30 565 means +29 565. 15 (93 Pl 3, 366, 715). 16 NGC 1333 = GC 710 = +30 0548. Discovered by Schonfeld in 1855 in 16 connection with the BD observations. (91, 93 Pl 3, 114, 196, 304, 365, 16 366, 486, 578, 630 Pl 29, 631, 715). 17 The nebulosity connected with Nova Persei 1901. Disc. Flammarion, 17 Antoniadi 1901. Comprehending discussion: (439). (77, 216, 244, 457, 482, 17 486, 562) R. New outburst discovered by Barnard in 1916. 18 a = Emission field (725) No 34. 18 b = The nebulous region around Omicron Persei = +31 642 = HD 23180 = 18 Boss 4461. (88 Pl 16, 91, 93 Pl 3, 482, 486, 576). 19 The nebulous region of the Pleiades. 19 History: (113, 191, 772). General discussions : (30, 46, 53, 54, 78, 119, 19 184, 186, 191, 194, 206, 207, 331, 345, 365, 366, 560, 571, 578, 709, 715, 19 750, 751, 753, 755, 804). Visual and photographic observations : (19, 33, 19 69, 93 Pl 4, 100, 105, 114, 216, 241, 261, 280, 328, 334, 335, 336, 344, 19 553, 586, 587, 596, 597, 598, 603, 612, 631, 792). The exterior 19 nebulosities : (56, 73, 76, 84, 91, 422, 629, 779, 800). Parallax : (14, 19 221, 299, 482, 484, 486, 565, 753). Stellar data : (13, 94, 101, 159, 233, 19 285, 546, 560, 697, 783). Nebular spectrum : (289, 293, 688, 695, 745). 19 Nebular photometry : (196, 344, 712). Polarization : (337). Absorption : 19 (40, 424, 560, 783). 19 a = IC 336. Disc. Barnard 1894. WP 201. (56). 19 R. Part of the general background. +22 518 aligned. 19 b = IC 341. Disc. Barnard 1894. (56). 19 R. Part of the general background with a condensation of about 1{deg} in 19 diameter around +20 492 = HD 18902. 19 c = The nebula around Celaeno = +23 505 = HD 23288 = Boss 4475. Disc. 19 Schiaparelli 1875 (Compare Tempel: AN 86 col 67, 1875). (119, 325). 19 d = The nebula around Electra = +23 507 = HD 23302 = Boss 4477. Disc. 19 Schiaparelli 1875. (336, 337, 715). 19 e = The nebula around Taygeta = +24 547 = HD 23338 = Boss 4486. Disc. 19 Roberts 1886 (596). 19 f = NGC 1432 = The nebula around Maia = +23 156 = HD 23408 = Boss 4500. 19 Disc. P. and Pr. Henry 1884 (335). Taken for a flaw in the negative at 19 Harvard a month earlier, according to (186) p 230. (336, 337, 394, 523, 19 553, 556, 711, 715, 771, 777). 19 g = The general nebulous background of the Pleiades. 19 Compare the above references. 19 h = The nebula around Asterope = +24 553 = HD 23432 = Boss 4502. 19 Disc. Roberts 1886 (596). (715). 19 i= Barnard's Merope nebula = IC 349. Disc. Barnard 1890. (46, 47, 67, 154, 19 402, 570, 752). R. Merope = +23 522 = HD 23480 = Boss 4512. 19 j = NGC 1435 = The large Merope nebula. Disc. Tempel 1859. (28, 42, 196, 19 199, 200, 203, 227, 293, 294, 325, 337, 358, 365, 366, 569, 631, 715, 731, 19 748, 798, 808). 19 k = The nebula around +23 524 = HD 23512. Source: (93) Pl 4. (715). 19 l = The nebula around Alcyone = +23 541 = HD 23630 = Boss 4541. 19 Disc. Searle 1875. (Compare Harvard Ann 13 p 74). (715). 19 m = IC 1990. Disc. Stratonoff M95 (708). 19 n = NGC 1456. Disc. Lohse. R. This is probably only a condensation in the 19 exterior Pleiades nebulosity. Compare (114). 19 o = The nebula around Atlas = +23 557 = HD 23850 = Boss 4586. 19 Disc. Roberts 1886 (596). 19 p = The nebula around Pleione +23 558 = HD 23862 = Boss 4587. 19 Disc. Roberts 1886 (596). 19 q = IC 354. Disc. Barnard 1894 (56). 20 IC 348. Disc. Safford (The NGC appendix). (76, 88 Pl 16, 91, 93 Pl 3, 20 194, 196, 209, 216, 274, 366, 486, 576, 630 Pl 29, 715). 20 R. +31 643 = Boss 4465. 21 Anon. 3h 38m4, +32 1'. Source: (93) Pl 3: "A very small, bright nebula, 21 like a nebulous star, is 7' east and slightly north of Omicron Persei. 21 This is sligghtly west of and involves a star not in the BD". (630) Pl 29. 22 IC 1995. Disc. Barnard 1900. (76, 88 Pl 13 Pl 15, 422, 482,486). 22 R. +25 624 = HD 23985 = Boss 4616. 23 NGC 1465. Disc. Swift 1886 (734). (114). R. Not identified. Class B.3? 24 IC 353. Disc. Barnard 1900 (76). (422). R. + 25641 = HD 24368 = Boss 4680. 25 NGC 1491 = GC 793 = H I 258. Disc. 1790. (114, 252, 550, 578, 791). 25 R. Classified as a barred spiral by Curtis in (217). 25 +50 886 probably only aligned. 26 NGC 1499. Disc. Barnard 1885 (65). WP 10. (16, 91, 114, 209, 216, 289, 294, 26 304, 362, 365, 366, 420, 26 478, 630 Pl 29, 631, 646, 715,810,820). 26 R. {ksi} Persei +35 775 = HD 24912 = Boss 4779. 27 +27 633 = HD 25823 = Boss 4937 nebulous. Source: (88) Pl 15. 28 NGC 1514 = GC 810 = h 311 = H IV 69. Disc. 1790. (48, 93 Pl 5, 103, 114, 28 155, 216, 252, 366, 482, 486, 491, 592, 631, 715, 761, 762, 791). R. 28 +30 623 = HD 26125. HD spectrum: K0! Has also been classified as a planetary 29 IC 360. Disc. Barnard 1900 (76). (630) Pl 30 Pl 31. R. Part of the general 29 Taurus veil. Bohlin's object (120) probably refers to a condensation 29 in IC 360. 30 IC 359. Disc. Swift 1891 (737). (84, 93 Pl 5, 196, 365, 366, 630 Pl 30, 715, 30 717). R. There has been some confusion as to the identity of Swift's object. 30 In recent investigations Hubble's identification 30 in (366) p 406 has been accepted. IC 359 would thus inean the nebulous star 30 north following Barnard's "dark" object B 10. However, Swift has described 30 his discovery as pL, which may as well refer to the whole region of B 10. 30 In the catalogue: a = Hubble's nebulous star. Bohlin's object (121) is B 10. 31 +28 645 nebulous. Disc. Barnard 1907 (84). (93 Pl 5, 196, 630 Pl 30, 715). 31 R. Connected with the dark nebula B 214. 32 The nebulous region around T Tauri, a = NGC 1554 = GC 5339 = Struve's lost 32 nebula. Disc. O. Struve 1868. Compare (59). b = NGC 1555 = GC 839 = 32 Hind's variable nebula. Comprehending discussion: (59). (63, 75, 92, 114, 32 124, 152, 153, 156, 212, 216, 406, 460, 486, 491, 548, 550, 578, 600, 631, 32 746). Disc. Hind 1852. C = T Tauri nebulous. Disc. Burnham 1890 (152). 32 (1, 59, 216). 33 Anon. 4h21.0m +25 51. Source: (93) Pl 5: "A very minute bright nebula 33 (No 100) is not listed in the NGC". R. The illuminating star, which is 33 probably situated in the middle of the nebula, is not discernable 33 on available photographs. The BD Chart has nothing in this position. The 33 nebula is starlike on FA and on (630) Pl 30. 34 +22 699 = HD 28149 = Boss 5396 nebulous. Disc. Barnard 1907 (84). 34 (486, 630 Pl 31). 35 NGC 1579 = GC 853 = h 315 = H I 217. Disc. 1788. WP 21. (91, 114, 209, 216, 35 486, 549, 578, 630 Pl 30, 631, 791). R. Due to a wrong identification Pease 35 has stated that +34 883 should be involved. 36 Anon. 12' north following NGC 1579. Disc. Curtis 1913 (209). WP 21. (216). 37 NGC 1624 = GC 879 = H V 49. Disc. 1790. (114, 194, 209, 366, 486, 578, 37 630 Pl 27). 38 IC 2087. Disc. Barnard 1892 (84). WP 22. (93 Pl 5, 196, 630 Pl 30 Pl 31, 38 717). R. This is the object B 14. 39 IC 2088. Disc. Wolf 1906 (811). (630) Pl 31. R. A brighter part or the 39 Taurus veil. 40 NGC 1788 = GC 1005 = h 347= H V 32. Disc. 1786. (106, 114, 153, 196, 209, 40 252, 297, 366, 486, 578, 619, 630 Pl 34, 6311 791). 41 IC 2118 = "The Witch Head nebula". Disc. Wolf 1905 (809). (294, 365, 366, 41 630 Pl 33, 715, 809). R. NGC 1779, 1797, 1799, IC 398, 402 are probably 41 parts of IC 2118. They have not been included in the catalogue, as it has 41 proved impossible to identify them with any certainty on available 41 photographs. The divisions a and b are due to Hubble (366) p 406. 41 Illuminating star: Rigel = -8 1063 = HD 34085 = Boss 6410. 42 IC 405 = "The flaming star". Disc. Schaeberle 1892 (643). WP 24. (294, 366, 42 413, 482, 486, 623, 627, 630 Pl 32, 715, 796, 805). 42 R. +34 980 = HD 34078 = Boss 6429. 43 IC 410. Disc. Wolf 1893 (796). R. Earlier known as the open cluster 43 NGC 1893 = GC 1101 = h 351, which has a wrong position in the NGC. WP 24. 43 (194, 482, 486, 571, 630 Pl 32, 753, 796, 805). HD stars belonging to the 43 cluster: +33 1017 = HD 34760. +33 1018 = HD 34841. The nebula seems to 43 condense around these stars and around +33 1023-1026, 1028, 1029. 44 The nebula connected with +8 933 = HD 34989 = Boss 6574. Discovered by 44 Melotte and Lundmark on the FA plates in 1926 (502). (93 Pl 6, 339, 486, 44 630 Pl 33, 715). 45 +6 919 = HD 35468 = Boss 6668 = {gam} Orionis nebulous. Source: (93) P1 6. 45 FA 97. (630) Pl 33. 46 IC 417. Disc. Wolf 1893 (796). FA 145. WP 66. (482, 486, 630 Pl 33, 805). 46 R. {phi} Aurigae is probably only aligned. The nebulosity seems to 46 condense around the stars +34 1053, 1054, 1056. This condensation = a in 46 the catalogue. There is, however, traces of nebulosity also around other 46 faint stars in the cluster. 47 +12 801 = HD 35956 = Boss 6760 nebulous. Source: (93) Pl 6. (715). 48 IC 419. Disc. Wolf 1893 (796). R. Not identified. Wolf's description : 48 "Bright. Elongated. Some minutes in length". 49 NGC 1931 = GC 1137 = h 355 = H I 261. Disc. 1793. FA 145. WP 66. (114, 49 153, 194, 208, 216, 252, 354, 549, 578, 630 Pl 32, 631, 632, 796). 50 The nebula around Nova T Aurigae. Disc. Barnard 1892 (52). (160, 208, 216, 50 277, 796). Description by Barnard (53) : "Tenth magnitude star in nebular 50 condensation of 3" diameter surrounded by fainter glow of 0.5' diameter". 51 The nebula at +11 836. Sources: (93 Pl 6, 630 Pl 33). R. This star has a 51 fan-shaped appendix which seems to be superimposed on a faint background 51 veil. The McDonald spectrograph has revealed, emission in this region 51 (724). 52 IC 423. Disc. Pickering 1890 (557). WP 166. (216, 630 Pl 33 Pl 34). 52 R. This peculiur annular object may be a planetary. No central star is 52 visible. Apparently it is well within reach of the belt stars, but it 52 stands out definitely against the general nebulous background. 53 NGC 1952 = GC 1157 = h 357 = M 1 = "The Crab nebula". Disc. Bevis 1731. 53 The object occurs in Bevis' atlas. WP 27. (27, 30, 103, 114, 174, 191, 53 216, 220, 232, 236, 242, 259, 300, 301, 354, 366, 454, 455, 457, 486, 489, 53 491, 500, 509, 578, 601, 603 Pl 14, 606, 615 Pl 26, 630 Pl 30, 631, 632, 53 641, 761, 791). R. Has also been classified as a planetary. 54 The nebula around {lam} Orionis = +9 879 = HD 36861/2 = Boss 6915. 54 Disc. Barnard 1894 (93) Pl 6. WP 28. (88 Pl 21, 194, 630 P1 33, 715). 54 R. On available photographs the nebula seems to be confined to the 54 immediate vicinity of {lam} Orionis. However, the McDonald spectrograph 54 has revealed emission in a field as far as 3{deg} from the star, and it 54 is not improbable that {lam} Orionis should be the stimulating source. 54 (724). 55 The Orion region. History and bibliography: (118, 119, 186, 188, 191, 276, 55 352). The nebulous groundwork and the exterior nebulosities: (20, 21, 26, 55 53, 58, 78, 142, 143, 186, 191, 206, 207, 278, 279, 281, 282, 289, 305, 55 312, 438, 480, 519, 540. 541, 593, 594, 595, 620, 625, 628, 630 Pl 34, 55 663, 675, 715, 726 No 41, 769, 782, 802, 818). R. It is shown on several 55 photographs, e.g. (630) Pl 34, that the whole region of the constellation 55 Orion is filled up by vast masses of nebulosity. As is well known, there 55 are several condensation which seem to stand out from the general 55 background, and which have been separately discovered and studied. Such 55 subnebulae, will be individually discussed below. Taken as a whole, No 55 55 of the catalogue should be classified as C. 2 in addition to the separate 55 classes of the subnebulae. 55 a = -5 1305 = HD 36917 nebulous. Source: (481). 55 b = NGC 1973 = GC 5352. Disc. d'Arrest. R. According to (114) this is the 55 nebulous star -4 1179 = HD 36958. 55 c = NGC 1975 = GC 5353. Disc. d'Arrest. R. According to (114) this is a 55 double nebulous star within the boundary of the Great Orion Nebula. 55 d = NGC 1976 = GC 1179 = h 360 = M 42 = "The Great Orion Nebula". Disc. 55 Peiresc 1610 (118). For references earlier than 1877, see (350) Part 2. 55 Concerning the central part (earlier than 1880), see (352), where (350) 55 Part 2 is reprinted with additions. Stellar data: (11, 25, 26, 146, 147, 55 149, 151, 157, 181, 194, 198, 202, 400, 426, 436, 444, 461, 490, 516, 525, 55 545, 571, 655, 656, 680, 775). Visual and photographic observations: (22, 55 32, 69, 79, 114, 183, 202, 216, 219, 222, 223, 228, 255, 261, 327, 352, 55 387, 388, 427, 462, 477, 555, 578, 586, 597, 599, 631, 647). Nebular 55 spectrum: (2, 24, 160, 161, 162, 163, 165, 166, 167, 187, 205, 224, 225, 55 244, 289, 293, 368, 369, 370, 371, 372, 373, 374, 399, 400, 401, 403, 404, 55 405, 469, 470, 471, 472, 473, 475, 498, 518, 530, 580, 581, 633, 634, 644, 55 648, 649, 650, 653, 654, 692, 707, 745, 757, 784, 785, 830, 834, 850). 55 Nebular photometry : (39, 356, 357, 435, 791). Parallax : (14, 20, 21, 55 102, 103, 150, 194, 482, 486, 564, 566, 571, 754). Nebular proper motion 55 and radial velocity: (168, 169, 171, 172, 174, 197, 210, 268, 520, 749, 55 757, 758). Interferometric measurements; temperature: (125, 126, 127, 256, 55 257, 269, 393). Gravitation : (3, 488). General discussions : (7, 19, 25, 55 30, 194, 248, 269, 294, 365, 366, 464, 558, 571, 578, 699, 715, 717, 753, 55 773, 778, 804). Polarization: (515). 55 {tet} Orionis : -5 1315 = HD 37020-37023 = Boss 6936. 55 -5 1319 = HD 37041 = Boss 6935. -5 1320 = HD 37042 = Boss 6936. 55 e = NGC 1977 = GC 1180 = H V 30. Disc. 1786. WP 67. (30, 114, 174, 197, 55 216, 238, 294, 366, 409 Pl 12, 481, 522, 578, 585, 599, 630 Pl 34, 692, 55 711, 715, 717). 55 R. The nebula around C' (42) Orionis = -4 1185 = HD 37018 = Boss 6934. 55 f = NGC 1980 = GC 1183 = h 361 = H V 31. Disc. 1786. WP 67. (30, 114, 174, 55 194, 304, 558, 578, 630 Pl 34, 631.). R. 55 This is the nebula around {iot} Orionis = -6 1241 = HD 37043 = Boss 6937. 55 g = NGC 1982 = GC 1185 = H III 1 = M 43. Disc. Mairan 1731. WP 67. (114, 55 252, 261, 294, 544, 578, 599, 791, 894). R. -5 1325 = HD 37061 = Bond 734. 55 h = NGC 1990 = GC 1193 = h 363 = H V 34. Disc. 1786. WP 166. (114, 209, 55 216, 282, 310, 316, 578, 631). 55 R. The nebula around {eps} Orionis = -1 969 = HD 37128 = Boss 6960. 55 i = NGC 1999 = GC 1202 = H IV 33. Disc. 1785. (114, 191, 201, 232, 296, 55 557, 578, 630 Pl 34, 631, 831). R. This is IC 427 + IC 428. 55 j = IC 426. Disc. Pickering 1890 (557). WP 166. (630) Pl 34. R. The nebula 55 is fan-shaped with the star -0 1018 = HD 37140 at the apex. 55 k = IC 430. Disc. Pickering 1890 (557). WP 67. (630) Pl 34. R. A 55 fan-shaped appendix to d Orionis = -7 1142 = HD 37507 = Boss 7039. 55 l = IC 431. Disc. Pickering 1890 (557). FA 98. WP 166. (216, 366, 715). 55 R. -1 1001 = HD 37674. 55 m = IC 432. Disc. Pickering 1890 (557). FA 98. WP 166. (216, 366, 715). 55 R. -1 1005 = HD 37776. 55 n = IC 434. Disc. Pickering 1890 (557). WP 67. (78, 87, 92, 215, 216, 235, 55 282, 294, 412, 416, 620, 630 Pl 34, 717, 724, 820). R. This is the bright 55 rim extending southwards from 55 {zet} Orionis = -2 1338 = HD 37742,3 = Boss 7089. 55 o = NGC 2023 = GC 1226 = H IV 24. Disc. 1785. WP 67. WP 166. FA 98. (114, 55 174, 196, 216, 235, 294, 296, 366, 416, 578, 630 Pl 34, 631, 715, 724, 55 817) . R. -2 1345 = HD 37903. 55 p = NGC 2024 = GC 1227 = H V 28. Disc. 1786, WP 166. (30, 87, 88 Pl 20, 55 114, 174, 215, 216, 235, 238, 263, 289, 294, 296, 366, 409 Pl 13, 416, 55 418, 550, 558, 578, 620, 630 Pl 34, 631, 715, 793, 802). 55 q = IC 435. Disc. Pickering 1890 (557). FA 98. WP 67. (196, 216, 296, 366, 55 715). R. -2 1350 = HD 38087. 55 r = "The Orion loop". Disc. Barnard. For references, see No 55, the 55 heading : "The nebulous groundwork and the exterior nebulosities". R. On 55 (630) Pl 34 the "loop" seems to be a prominent condensation in the general 55 background veil. 55 s = NGC 2064 = GC 5355. Disc. d'Arrest. WP 166. (30, 114, 216, 238, 409 55 Pl 14, 578, 630 Pl 34, 631). R. -0 1077 has two nebulous wisps extending 55 chiefly north-south. NGC 2064 is a part of the southern appendix. 55 t = NGC 2067 = GC 5356. Disc. Tempel 1878 (746). WP 166. (114, 216, 238, 55 409 Pl 14, 578, 630 Pl 34). R. This is the curious nebula (somewhat 55 resembling a hand-saw) situated north-west of M 78. +0 1177 = HD 38563. 55 u = NGC 2068 = GC 1267 = h 368 = M 78. Disc. Mechain 1780 (262). FA 98. 55 WP 166. (30, 114, 173, 191, 196, 216, 238, 252, 354, 366, 409 P1 14, 486, 55 578, 604, 630 Pl 34, 631, 698, 715, 791). 55 v = NGC 2071 = GC 1270 = H IV 36. Disc. 1786. FA 98. WP 166. (114, 173, 55 196, 216, 238, 366, 409 Pl 14, 578, 604, 630 Pl 34, 715). 56 IC 425. Disc. Wolf 1892 (796). R. Not identified. Catalogue dimensions 56 according to Wolf. 57 NGC 1985 = GC 1188 = h 359 = H III 865. Disc. 1790. 57 R. Catalogue data from (114) and (578). (631). 58 NGC 2045 = GC 1247 = h 367. WP 28. (114, 252, 578). 58 R. +12 884 = HD 38263 = Boss 7186. 59 The nebula connected with FU Orionis. Disc. Wachmann 1939 (BZ 21 p. 12). 59 (770). R. The nebula is probably of the reflection type, although it is 59 situated in an emission region (727 No 64). The nebula had an extension of 59 about 3' in 1939. It is probably variable. 60 IC 439. Disc. Wolf 1893 (796). R. Not identified. 60 Catalogue data according to Wolf. Not found by. Curtis (216). 61 +30 1096 nebulous. Source: (93) Pl 7. (630) Pl 32. 62 Anon. 6h 1.8m, +18 42'. Disc. Hubble 1922 (365) p 173 : "A bright 62 uncatalogued nebula similar to NGC 2245". (366, 491). 63 NGC 2170 = GC 1362 = H IV 19. Disc. 1784. (114, 153, 232, 366, 486, 578, 63 630 PL 34, 631, 686, 687, 715). 64 Emission field (726) No 43 = Lower's nebula in Orion. Disc. Lower 1939 64 (480). (630 Pl 33 Pl 35). R. +15 1079 = HD 41997. There may be some doubt 64 as to the exciting star, and the nebula might possibly be classified as 64 C.2. Barnard (54) perceived a faint nebulous glow in the vicinity of {ksi} 64 and {ups} Orionis. 65 -6 1417 = HD 42004 nebulous. Source: (366). FA 98. (630 Pl 34, 715). 66 -6 1418 nebulous. Source: (366). FA98. (630 Pl 34, 715). 67 a = NGC 2175 = GC 1366. Disc. Bruhns (Compare Auwers: Konigsherg Obs 34). 67 FA 122. WP 45. (54, 88 Pl 22, 93 Pl 9, 114, 194, 216, 294, 366, 399, 482, 67 578, 630 Pl 35, 715). R. Nebulous cluster with the principal star +20'1284 67 = HD 42088. Alternative classification : A. 2. The object NGC 2174 67 probably refers to the northern part of the nebula. 67 b = IC 2159. According to the position given in the IC, this must refer to 67 a condensation in the above nebula. (289). 67 c = The nebula around +20 1293 = HD 252812. WP 45. (93 Pl 9, 715). 68 NGC 2182 = GC 1373 = h 381 = H IV 38. Disc. 1786. (114, 153, 252, 296, 366 68 , 578, 630 Pl 34, 631). R. -6 1431 = HD 42261. 69 NGC 2183 = GC 5359. Disc. d'Arrest. (114, 153, 296, 366, 486, 578, 631). 70 NGC 2185 = GC 1375 = h 383 = H IV 20. Disc. 1784. (114, 153, 296, 304, 70 366, 578, 631). 71 -6 1444 nebulous. Source: (366). 72 IC 2162. Disc. Barnard. (630 Pl 35). 73 IC 443. Disc. Wolf 1893 (796). (23, 54, 93 P1 9, 630 Pl 32). R. The nebula 73 is symmetrical Nvith respect to a conspicuous dark area, and the light- 73 source may be dimmed off so as to make it unperceived. Another possibility 73 is represented by {eta} Geminorum. If this star is responsible for the 73 nebular light, weget a = 45' from (93) Pl 9, and log a_1_ (reduced to 73 Hubble's system as shown in Chapter II) will be 1.487. {eta} Geminorum is 73 variable, with spectrum M2 and visual magnitude 3.2m in the maximum. 73 Assuming a normal colour index (according to the HD catalogue), we get the 73 corresponding photographic magnitude 4.6m. Hence, m + 5 log a_1_ = 12.0; 73 in satisfactory agreement with Hubble's law. The visual magnitude at the 73 minimum is 4.3m, and the period 234". The nebula should be photographed in 73 red light. Further, it ought to be tested for variability. The IC position 73 has been corrected according to (23). 74 IC 444, Disc. Wolf 1893 (796). WP 45. (53, 93 Pl 8 Pl 9, 194, 630 Pl 32). 74 R. The nebula seems to be confined to the vicinity of +23 1301 = HD 43836 74 = Boss 8106 = 12 Geminorum. This star belongs to the cluster (194) No 89. 74 Barnard (53) has stated that +23 1313 is also nebulous. The IC description 74 refers to this star. 75 The nebulous cluster (194) No 92. R. Principal generating star: 75 +5 1214 = HD 44586. Alternative classification : A. 2. 76 a = NGC 2238 = GC 5361. Disc. Marth. (114, 578). R. This is a nebulous 76 star of magnitude 14.5, which is probably to be considered as a part of 76 the nebulous cluster listed as b. 76 b = The nebulous cluster NGC 2237, 2239, 2244. R. In 1857 Swift discovered 76 a brighter patch of this nebulosity, which is catalogued as NGC 2237. The 76 cluster was discovered by William Herschel in 1784. It is listed as NGC 76 2244 = GC 1424 = H VII 2. The designations : NGC 2239 = GC 1420 = h392 76 refer to the star 12 Monocerotis, which is a member of the cluster. 76 The NGC positions of 2237 and 2239 are erroneous. The outer nebulosities 76 were discovered by Barnard in 1883. WP 105. (15, 29, 30, 44, 45, 54, 55, 76 64, 66, 88 Pl 26, Pl 27, 114, 143, 191, 194, 208, 216, 280, 284, 294, 304, 76 365, 366, 478, 482, 554, 578, 613, 615 Pl 27, 622, 629, 630 Pl 35, 631, 76 715, 733, 753). HD stars involved or aligned : +4 1291 = HD 46056. 76 +5 1279 = HD 46106. +5 1278 = HD 46107. +5 1281 = HD 259105. 76 +5 1282 = HD 46149. +5 1283 = HD 46150. +5 1287 = HD 46201. 76 + 5 1286 = HD 46202. +4 1302 = HD 46223. +4 1304 = HD 46241. 77 IC 446 = IC 2167. Disc. Barnard 1894 (54). WP 30. (88 Pl 28, 216, 366, 77 482, 630 Pl 35, 715). 78 IC 2169 = IC 447. Disc. Barnard 1894 (54). WP 30. (88 Pl 28, 194, 366, 78 618, 630 Pl 35). R. BD stars apparently members of the cluster: +9 1264, 78 1265, 1266, 1269, and +10 1159 = HD 46005. 79 IC 448. Disc. Wolf 1891. (793). WP 30. (88 Pl 28, 630 Pl 35, 726 No 40). 79 R. Struve and collaborators believe the nebula to be of the reflection 79 type, and they ascribe the background emission of the region to S 79 Monocerotis. 13 Monocerotis may only be aligned. It is, however, difficult 79 to decide in this question as the bright star is accompanied by a large 79 halo on all available photographs. 79 13 Monocerotis = +7 1337 = HD 46300 = Boss 8506. 80 NGC 2245 = GC 1425 = h 393 = H IV 3. Disc. 1784. FA 122. WP 30. (64, 88 80 Pl 28, 114, 174, 209, 216, 232, 252, 366, 482, 486, 550, 578, 631, 686, 80 687, 715, 791). 81 NGC 2247. Disc. Swift 1883 (732). WP 30. (54, 64, 114, 209, 216, 366, 486, 81 550). R. The NGC position is slightly in error. +10 1172 = HD 259431. 82 Emission field (727) No 52. R. +6 1309 = HD 47129 = Boss 8631. 83 NGC 2261 = GC 1437 = h 399 = H IV 2. Disc. 1783. WP 30. (114, 174, 209, 83 216, 217, 294, 298, 359, 360, 361, 431, 450, 451, 452, 455, 457, 458, 459, 83 482, 486, 491, 509, 515, 578, 619, 631, 690, 693, 694, 791). R. This is 83 Hubble's variable nebula connected with R Monocerotis = +8 1427, varying 83 between the visual limits 9.3-14.0. Reinmuth gives the dimensions of the 83 nebula to be 3.2 x 1.5'. 84 The nebulous field containing NGC 2264. 84 a = Emission field (726) No 42. R. The region is faintly nebulous on (630) 84 Pl 35. According to Struve and Elvey this is an extension of the 84 nebulosity around S Monocerotis. 84 b = NGC 2264 = GC 1440 = h 401 = H V 27 = H VIII 5. Disc. 1784. FA 123. 84 WP 30. (12, 30, 54, 62, 64, 69, 74, 78, 88 Pl 28, 107, 114, 194, 216, 294, 84 304, 394, 482, 486, 492, 554, 578, 605, 618, 619, 630 Pl 35, 631, 715, 84 753, 823). R. The nebulous cluster around 15 (S) Monocerotis = +10 1220 = 84 HD 47839 = Boss 8720. Other HD stars within the boundary of the nebula : 84 +10 1211 = HD 47553. +10 1214 = HD 47662. +9 1331 = HD 47732. 84 +10 1215 = HD 47754. +9 1332 = HD 47755. +9 1334 = HD 47777. 84 +10 1221 = HD 47838. +9 1344 = HD 47887 = Boss 8726. +9 1349 = HD 47934. 84 +9 1350 = HD 47961. +9 1356 = HD 48055. 84 c = Emission field (726) No 37. R. Probably an extension of the nebulosity 84 illuminated by S Monocerotis. A faint veil can be traced on (630) Pl 35. 85 Emission field (727) No 55. (630) Pl 35. R.+6 1351 = HD 48099 = Boss 8747. 86 NGC 2283 = GC 1452 = H III 271. Disc. 1785. (114, 578). 87 NGC 2282 = IC 2172. Disc. Barnard 1883. (114, 366, 630 Pl 35). 88 IC 454. Disc. Swift 1889 (736). R. Not identified. Perhaps of Class C.2. 89 The nebulous region of IC 2177. 89 a= Emission field (727) No 56. (630) Pl 37. R. -10 1848 = HD 53367. 89 b = NGC 2327 = GC 1487 = h 428 = H IV 25. Disc. 1785. (114, 228, 232, 296, 89 578, 630 Pl 37, 631, 829). R. This is a part of the nebula described by 89 Wood in (829). 89 c = IC 2177. Disc. Roberts 1898 (611). FA 75. (216, 366, 614, 630 Pl 37, 89 715, 812, 829). 89 d = Emission field (726) No 45. 89 e = Emission field (726) No 46. R. -10 1892 = HD 54662 =Boss 9459. 90 -12 1771 = HD 53623 nebulous. Source: (366). FA 75. (196, 482, 486, 630 Pl 90 37, 715). R. Should perhaps have been included with No. 89 of the 90 catalogue. Hubble has measured only the central condensation. His value of 90 {alf} is 1.8', whereas measurement on (630) gives 4'.5, and an (196) 6'.0. 91 Emission field (727) No 57. R. -8 1734 = HD 53667. 92 IC 466. Disc. Javelle 1897 (392). R. Not identified. 93 Anon. 7h 5.0m, -18 19'. Disc. Wood 1911 (829). (366, 429, 630 Pl 37). 93 R. The nebula is situated between the two stars -18 1703 and 1713. 93 A number of faint stars involved. 94 a = IC 468. Disc. Bigourdan 1891 (110). R. Part of NGC 2359. 94 b = NGC 2359 = GC 1511 = h 3075 = H V 21. Disc. 1785. (114, 208, 216, 297, 94 304, 365, 550, 578, 630 Pl 37, 631). R. NGC 2361 is probably a part of 94 this nebula. 95 Emission field (726) No 44. 95 {tau} Canis Majoris = -24 5176 = HD 57061 = Boss 9736. 96 Nebulous field containing the following nebulous stars. 96 a = -23 5277 = HD 57281. FA 51. (93 Pl 10, 366, 630 Pl 38, 715). 96 b = -23 5285 = HD 57325. FA 51. (93 Pl 10, 630 Pl 38, 715). 96 c = -23 5296 = HD 57393. References as b. 97 Emission field (726) No 48. 98 Emission field (727) No 62. R. 98 {eta} Canis Majoris = -29 4328 = HD 58350 = Boss 9886. 99 Emission field (727) No 50. R. -15 1810 = HD 58343 = Boss 9893. 100 -22 1897 = HD 59612 = Boss 10043 nebulous. 100 Source: (93) Pl 10. FA 51. (630 Pl -38, 715). 101 -25 4775 = HD 61071 = Boss 10207 nebulous. 101 Source: (93) Pl 10. FA 51. (630 Pl 38). 102 Emission field (727) No 63. R. 102 3 Puppis = -28 4774 = HD 62623 = Boss 10417. 102 R. Faint veil perceivable on (630) Pl 38. 103 NGC 2467 = GC 1589 = h 472 = H IV 22. Disc. 1784. FA 52. (114, 194). 103 R. Nebulous cluster. On FA 52, and according to (114), the nebulosity is 103 confined to the vicinity of -26 5115 = HD 64315. The principal star of 103 the cluster is -26 5137 = HD 64455. 104 Emission field (727) No 53. R. 104 {lam} Velorum = -46 3847 = HD 68273 = Boss 11105. 105 NGC 2568. Disc. Barnard 1881 (43). R. Not identified. 106 Melotte's and Lundmark's nebulous region in Vela. R. With the exception 106 of a large detached loop, the nebulosity seems to condense around the 106 individual stars mentioned by Melotte in (502). The whole group should 106 be classified as A. 2. (30). 106 a = The nebulosity connected with -43 4337 = CPD 2636 = HD 72067 = 106 Boss 11628. 106 b = The neb. conn. with -47 4004 = CPD -47 2296 = HD 72108 = Boss 11630 = 106 A Velorum. 106 c = The neb. conn. with -44 4462 = CPD -44 2667 = HD 72127 = Boss 11635. 106 d = The neb. conn. with -41 4189 = CPD -41 2599 = HD 72139 = Boss 11637. 106 e = The neb. conn. with -43 4343 = CPD -43 2645 = HD 72179. R. Connected 106 with a. 106 f = The neb. conn. with -47 4048 = CPD -47 2348 = HD 72485 = Boss 11683. 106 g =The abovementioned "loop". R. (683) announces emission in this nebula, 106 which seems to be a pendant to the Cygnus "loop". 106 h = NGC 2626 = GC 1677 = h 3131. Disc. 1835. R. The neb. conn. with. 106 -40 4427 = CPD -40 2666. 106 i = The neb. conn. with. -42 4451 = CPD -42 2754 = HD 73634 = Boss 11852 106 = e Velorum. 106 j = The neb. conn. with. -46 4438 = CPD -46 2805 = HD 74180 = Boss 11951 106 = b Velorum. 106 k = The neb. conn. with. -46 4448 = CPD -46 2819 = HD 74272 = Boss 11966 106 = n Velorum. 106 l = The neb. conn. with. -44 4704 = CPD -44 2936 = HD 74371 = Boss 11978 106 m = The neb. conn. with the cluster IC 2395. R. Compare the Introduction 106 of the present paper (p 13). (194). Bailey (30) does not mention 106 nebulosity in his description of the cluster. However, he has given 106 exactly the same description of M 16, which is certainly nebulous. 106 n = The neb. conn. with. -40 4569 = CPD -40 2824 = HD 74804. 106 o = The neb. conn. with. -45 4517 = CPD -45 3014 = HD 75063 = Boss 12109 106 = a Velorum. 107 NGC 3199 = GC 2067 = h 3239. Disc. 1835. FA 18. (561). 108 NGC 3324 = GC 2167 = h 3286 = Dunlop 322. R. These designations probably 108 refer to the double cluster, the northern part of which has been 108 separately catalogued as IC 2599. The neighhouring cluster NGC 3293 108 should be searched for nebulosity. (30, 561). 108 CPD -57 3584 = HD 92206 = Boss 14621. Alternative Class: A. 1. 109 The {eta} Carinae region. a = NGC 3372 = GC 2197 = h 3295 = Dunlop 309 109 = Lacaille III 6. Disc. 1755.(30, 122, 123, 174, 175, 177, 191, 194, 216, 109 228, 365, 366, 382, 482, 486, 520, 560, 561, 575, 635, 636, 666, 682). 109 R. This is the "Key-hole nebula". See further Bok's monograph (123). 109 b = NGC 3503 = GC 2286 = h 3311. Disc. 1834. R. This refers to part of 109 the general background of the {eta} Carinae region. 110 Anon. 11h 3m, -76 48'. Disc. Melotte, 1926 (502). R. Not identified. 110 Described as a small patch of nebula near a twelfth magnitude star. 111 CPD -76 654 = HD 97048 nebulous. Disc. Melotte 1926 (502). FA 6. 112 CPD -75 714 = HD 97300 nebulous. Disc. Stewart 1908 (852). FA 6 (502). 113 A nebulous field discovered by John Herschel in 1834 and catalogued as 113 follows. 113 a = NGC 3576 = GC 2333 = h 3324, R. CPD -60 2631 = HD 97452 may be the 113 light-source. 113 b = NGC 3579 = GC 2336 = h 3325. R. CPD -60 2626 = Potsdam spectral DM 113 Area 193 No 48 may be the light-source. 113 c = NGC 3581 = GC 2337 = h 3326. (561, 682). 113 d = NGC 3582 = GC 2338 = h 3327. R. CPD -60 2643 = HD 97499 may be the 113 light source. 113 e = NGC 3584 = GC 2340 = h 3329. 113 f = NGC 3586 = GC 2342 = h 3330. 114 NGC 3699 = GC 2432 = h 3345. Disc. 1434. R. John Herschel described the 114 object as almost resolved. Gaseous spectrum and irregular form announced 114 in (855). (381, 854). 115 IC 2872. Disc. Frost 1908 (852). R. Not identified. 116 CPD -61 2350 = HD 99897 nebulous. Source: FA 18. 117 CPD -63 1904 = HD 10099 nebulous. Source: FA 18. 118 IC 2944. Disc. Frost 1908 (852). FA 18. (194, 828). R. 118 IC 2944 = {lam} 118 Centauri with nebula. 118 IC 2948 = The cluster following {lam} Centauri. 118 This star (= CPD -62 2127 = HD 100841 = Boss 15899) is probably alone 118 responsible for the nebular light. The cluster is probably situated 118 behind the nebula. 119 CPD -60 3142 = Potsdam spectral DM Area 193 No 1249 nebulous. Disc. Innes 119 1913 (379). R. Not identified. 120 NGC 3882 = GC 2550 = h 3358. Disc. 1834. R. Not identified. 120 CPD -55 4616 = HD 102277. 121 IC 2966. Disc. Frost 1908 (852). R. Not identified. 122 Anon. 13h 18.0, -63 30'. Disc. Shapley 1926 (681). FA 19. R. Probably a 122 case like the "North America Nebula",. The nebula seems to be connected 122 with the coalsack. CPD -62 2745 = HD 108248,9 = Boss 16952,3. 123 NGC 5189 = GC 3570 = h 3514 = Dunlop 252. (103, 174, 216, 482, 486, 682, 123 761). R. Wrong identification in (216). NGC 5189 refers to the whole 123 nebulous field, which is well shown in John Herschel's drawing of the 123 object (Cape Results Plate 6: 1). Has also been classified as a planetary. 124 -29 11837 = HD 139365 = Boss 21019 = {tau} Librae nebulous. Source: (93) 124 Pl 11. FA 59. 125 The nebulous field at {pi} Scorpii. Disc. Archenhold 1892 (19). R. Almost 125 detached condensations have been noted at the following stars: 125 a = -25 11131 = HD 141637 = Boss 21285 = b Scorpii. 125 b = -24 12352 = HD 142114 = Boss 21329 = A Scorpii. (715). 125 c = -24 12354 = HD 142165 = Boss 21339. (715). 125 d = -25 11228 = HD 143018 = Boss 21447 = {pi.} Scorpii. FA 60. (81, 93 125 Pl 11, 175, 366, 377, 378, 630 Pl 2, 715). 125 e = -22 4068 = HD 143275 = Boss 21489 = {del} Scorpii. (81, 93 Pl 11, 125 175, 630 Pl 2). The whole region: Class A. 2. 126 The nebula around {rho} Scorpii = -28 11714 = HD 142669 = Boss 21398. 126 Source: (93 Pl 11). 127 IC 4591. Disc. Barnard 1895 (61). (93 Pl 11 P1 13, 630 Pl 2). R. 127 -27 10841 = HD 145482 = Boss 21778 = 13 (c2) Scorpii. 128 IC 4592. Disc. Barnard 1895 (60). (74, 82, 84, 86, 92, 93 Pl 12, 339, 128 366, 630 Pl 2, 715, 716). R. 128 -19 4333 = HD 145501/2 = Boss 21773 = {ups} Scorpii. 129 The nebulous stars in the region of IC 4601. 129 R. The designations IC 4601 a and b are according to Hubble (366). 129 No 129 may be connected with No 128, although the latter gives the 129 impression of being situated in the foreground. 129 129 a = -19 4357 = HD 146834 = Boss 21935. Source: (88) Pl 35. (93 Pl 12, 129 Pl 13, 196, 482, 486, 715). 129 129 b = IC 4601 a = -19 4358,9 = HD 147009,10 = Boss 21958,60. Disc. 129 Barnard. Independently found by Stewart in 1908 (852). FA 84. WP 195. 129 (61, 88 Pl 35, 93 Pl 12 Pl 13, 196, 366, 630 Pl 2 Pl 5, 715). 129 129 c = IC 4601 b = -19 4361 = HD 174103,4 = Boss 21967,8. R. Compare 129 b. 130 The nebula around -25 11485 = HD 147165 = Boss 21982 = {sig} Scorpii. 130 Disc. Barnard 1895 (60). FA 60. (74, 88 Pl 36, 92, 93 Pl 13, 339, 366, 130 715, 716, 718, 724, 726 No 8 No 9). 131 The nebula at {rho} Ophiuchi. Disc. Barnard 1895 (61). 131 a = IC 4603. R. See the references at b. -24 12684 = HD 147889. 131 b = IC 4604. FA 60. (34, 61, 66, 68, 70, 74, 78, 79, 82, 84, 86, 88 Pl 36, 131 92, 93 P1 13, 294, 295, 339, 366, 482, 486, 528, 630 Pl 2 Pl 5, 689, 715, 131 716, 820). R. -23 12861 = HD 147933,4 = Boss 22078,9 = {rho} Ophiuchi. 132 The Antares nebula. (60, 61, 66, 68, 70, 88 Pl 36, 93 Pl 13, 175, 715, 132 724, 726 No 7). R. Compare the account of the red nebula given in (719) 132 p 16. In (82) Barnard suggested that Antares is only projected against a 132 nebular background. Antares = -26 11359 = HD 148478,9 = Boss 22157. 133 IC 4605 = The nebula around -24 12695 = HD 148605 = Boss 22179 = 22 Scorpii. 133 Disc. Barnard 1895 (61). FA 60. (60, 66, 68, 82, 88 Pl 36, 93 Pl 133 13, 294, 339, 366, 482, 486, 630 Pl 1 Pl 2 Pl 5, 715, 716). 134 IC 4606. Disc. Finlay 1887 (273). R, Not identified. 134 Part of the Antares region? 135 Two nebulae found by John Herschel in 1834 near -47 10855 = HD 148937 = 135 Boss 22246. R. This star is probably responsible for the nebular light. 135 a = NGC 6164 = GC 4206 = h 3633. 135 b = NGC 6165 = GC 4207 = h 3634. 136 Nebulous field discovered by John Herschel in 1836. 136 a = NGC 6188 = GC 4223 = h 3640 The general nebulous background. 136 b = The nebulous cluster NGC 6193 = GC 4224 = h 3642. FA 38. (194). 136 The cluster = Dunlop 413. R. Principal star in the cluster: 136 - 48 11070 = HD 150135/6 = Boss 22418/9. Alternative Class: A. 1. 137 The nebulous field at IC 4628. 137 a = Emission field (727) No 68. R. Probably stimulated be the numerous O 137 and B0 stars in this region (Compare the HD catalogue). 137 b = IC 4628. Disc. Barnard. Independently found by Frost in 1908. (852). 137 FA 39. (88 Pl37, 93 Pl 16, 194, 630 Pl 1, 827). R. The light-source is 137 probable the same as in the case of No 137 a. NGC 6227 = GC 4243 = h 3651 137 refers to this part of the Milky Way, as does also Emission field (727) 137 No 72. 138 Emission field (726) No 70. R. -37 11206 = HD 153919 = Boss 22996. 139 NGC 6302 = -36 11341 = HD 155520 = "The Bug nebula". Disc. Barnard 1880 139 (43). (80, 93 Pl 16, 103, 174, 273, 761). R. Has also been classified as 139 a planetary. 140 NGC 6334 = GC 4288 = h 3678. Disc. 1837. FA 61. (93 Pl 16, 243). 140 R. -35 11457 = HD 156369. 141 NGC 6335 = GC 4289 = h 3679. Disc. 1837. (630) Pl 1. 141 R. The identification is uncertain. 142 NGC 6357 = GC 4297 = h 3682. Disc. 1837. (93 Pl 22, 243, 297, 365). 143 NGC 6360 = GC 4299 = h 3685. Disc. 1834. R. Potsdam spectral DM Area 157 143 is situated in this region. (31) announces that no nebula is to be seen 143 on a plate containing this region. 144 IC 1257. Disc. Spitaler 1890 (700). R. Not identified. 145 The nebula around -37 11673 = HD 158926 = Boss 23769 = {lam} Scorpii. 145 Source: (93) Pl 24. FA 39. FA 61. 146 IC 4657. Disc. Barnard. R. Not identified. 147 Emission field (727) No 69. R.-32 12935 = HD 159176 = Boss 23804. (630) 147 Pl 1. 148 IC 4659. Disc. Barnard. R. No identification has been possible, although 148 the eighth magnitude star referred to by Barnard must be -17 4848 = 148 HD 159172. 149 NGC 6401 = GC 4314 = h 1982 = h 3697 = H I 44. Disc. 1784. (93 Pl 21, 149 114). R. The nebula has also been listed as -23 13481. 150 The nebulous cluster (194) No 345. (93) Pl 21. 151 NGC 6514 = GC 4355 = h 1991 = h 3718 = H IV 41 = HV 10, 11, 12 = M 20 = 151 "The Trifid nebula". Disc. Le Gentil 1748 (Compare Chapter I note 14). 151 WP 92. (30, 57, 74, 85, 88 Pl 42, 93 Pl 29 Pl 30, 103, 114, 164, 174, 176, 151 191, 194, 210, 216, 228, 237, 238, 252, 260, 351. 366, 399, 407, 408, 453, 151 455, 457, 482, 486, 511, 520, 543, 559, 616, 630 Pl 4 Pl 6, 673, 682, 715, 151 717, 768). R. Hubble (366) ascribes the nebular light mainly to -23 13804. 151 According to Wallenquist (768), -22 4510 (of the {alf} Cygni type) is 151 probably responsible for the light of 1he northern part. HD stars 151 belonging to the cluster : -23 13789 = HD 164384. 151 -22 4503 = HD 164402 = Boss 24526. -23 13804 = HD 164492 = Boss 24537. 151 -22 4510 = HD 164514. -22 4516 = HD 164637 = Boss 24558. 151 -22 4520 = HD 164704. -23 13832 = HD 164739. -22 4533 = HD 164833. 152 a = NGC 6523 = GC 4361 = h 3722 = M 8 = Lacadle III 13 = "The Lagoon 152 nebula". Disc. Legentil 1748 (Compare Chapter I p 13). FA 62. WP 92. 152 (30, 51, 57, 66, 74, 85, 88 Pl 42 Pl 44, Pl 49 Pl 51 Pl 52, 93 Pl 29 152 Pl 30, 103, 114, 174, 191, 194, 210, 213, 2115, 216, 234, 260, 365, 366, 152 409, 413, 417, 449, 453, 482, 486, 511, 520, 531, 543, 559, 587, 617, 152 630 Pl 4 Pl 6 Pl 7, 682, 715, 717, 747, 753, 767). R. The two stars 152 -24 13814 = HD 164794 = CPD -24 6144 = Boss 24574, and 152 -24 13816 = CPD -24 6146 = HD 164816 are involved together with the open 152 cluster NGC 6530 = GC 4366 = h 3725. 152 Other HD stars within the boundary of the nebula : 152 -24 13780 = HD 164515. -24 13786 = HD 164535. -24 13783 = HD 164536. 152 -24 13787 = HD 164537. -24 13793 = HD 164584. -24 13791 = HD 164585. 152 -24 13795 = HD 164602. -24 13803 = HD 164705. -24 13812 = HD 164793. 152 -24 13826 = HD 164865. -24 13832 = HD 164906. -24 13839 = HD 164933. 152 -24 13845 = HD 164947. -24 13843 = HD 161448. -24 13864 = HD 165052. 152 -24 13869 = HD 165133. -24 13880 = HD 165246. -24 13879 = HD 165247. 152 The brightest part of the nebula has also been listed as 152 -24 13806 = HD 164740. 152 b = IC 4678 = -23 13906 nebulous. Disc. Barnard 1908 (85). FA 62. WP 92. 152 (93 Pl 29 Pl 30, 366, 715. R. The star -23 13908 = HD 165345 projects 152 against the nebula. The HD spectrum of this star is given to be K0, 152 whereas Seares and Hubble (064) have B3. 153 IC 4683. Disc. Wolf 1903 (804). R. Faint background veil on (93) Pl 30 (?). 154 The group of nebulous stars following M 8. R. There has been some 154 confusion in the literature as to the proper identification of these 154 objects. 154 a = IC 4681 = -23 13954 = HD 165705 nebulous. Disc. Barnard 1908 (85). 154 (194, 482, 486, 715). 154 b = IC 4684 = -23 13974 = HD 167852 nebulous. Disc. Barnard 1908 (85). 154 R. (88) Pl 52 gives the star as -23 13983, which is seen to be erroneous 154 from the plate coordinates of the star. Probably -23 13983 in Seares' and 154 Hubble's list (664) also refers to -23 13974, as it is very improbable 154 that this nebulous star should have been excluded. 154 c = IC 4685 = -24 13962 = HD 165921 = Boss 24732. Disc. Barnard 1908 (85). 154 d = IC 1274. Disc. Barnard 1892 (51). R. Hubble (366) divides this nebula 154 into two parts: IC 1274 a = -23 13997 nebulous, to which the stellar data 154 and log a_1_, in the present catalogue refer. In (366) the photographic 154 magnitude is given as 8.7m. IC 1274 b = -23 13998 nebulous. R. (366) 154 gives log a_1_, 0.398 and m_p_ = 9.2. In (664): m_p_ = 8.45, m_v_=8.56. 154 HD gives m_p_ =8.3, m_v_ = 9.0. The nebula IC 1274 is probably to be 154 considered as one entity illuminated by the stars -23 13997, 13998, 13999, 154 14002, and 14004. (Compare (88) Pl 52). (717). 154 e = IC 1275 = The nebula surrounding -23 14005 = HD 166107 = Boss 24753. 154 Disc. Barnard 1892 (51). (715). R. -24 14017 may also be nebulous, 154 although the writer has not been able to verify this suggestion. m_p_=8.47. 154 m_v_ = 8.46. Sp: B8. Taken as a whole No 154 should be classified as A.2. 154 f = NGC 6559 = GC 4384 = h 3733 = h 1996 = The nebula around the stars 154 -24 13984 (= HD 166056), and -24 13985. In (88) Pl 52 the first mentioned 154 star is erroneously given as -24 13990. (114,294). 155 The nebulosity associated with Nova Herculis 1934. (193, 764). Compare 155 further Harvard announcement card 629, 1942. 156 Emission field (727) No 77. (630) Pl 4. R. 156 -20 5054 = HD 167264 = Boss 24893 = 15 Sagittarii. 157 a = NGC 6589. Disc. Swift 1885 (733). FA 86. (49, 51, 88 Pl 55, 93 Pl 29 157 Pl 31, 114, 216, 366, 715). R. -19 4940 = HD 167638. 157 b = NGC 6590 = NGC 6595 = IC 4700 = GC 4395 = h 2002. (49, 51, 85, 157 93 Pl 29 Pl 31, 114, 194, 216, 366, 428, 578, 715, 733). 157 R. Regarding the identification, see Barnard (49). 157 c = IC 1283 = -19 4948 nebulous. Disc. Barnard 1892 (51). 157 (93) Pl 31. 157 R. 19 4948 = HD 167722. 157 d = IC 1284 = The nebula around -19 4953 = HD 167815 = Boss 24954. Disc. 157 Barnard 1892 (49). FA 86. WP 93. (51, 82, 85, 88 Pl 55, 157 93 Pl 29 Pl 31 Pl 32, 339, 366, 482, 486, 630 Pl 7, 715). 157 Taken as a whole No 157 should be classified as A. 2. 158 IC 4701. Disc. Barnard 1908. (85). (87). R. This is a large nebulosity 158 superposed on a star cloud. Potsdam spectral DM Area 134 is situated in 158 this region. 159 NGC 6611 = GC 4400 = h 2006 = M 16 = IC 4703. R. IC 4703 refers to the 159 nebula, which Roberts claimed to have discovered. The cluster was found 159 about 1746 by de Cheseaux (Compare Chapter I p. 13). His brief note does 159 not contain any statement as to nebulosity. However, Messier undoubtedly 159 perceived the nebula in addition to the cluster stars (Compare (260)!) 159 FA 86. WP 93. (30, 85, 88 Pl 57, 93 Pl 34, 114, 194, 234, 260, 365, 366, 159 383, 578, 589, 615 Pl 23, 630 Pl 6 Pl 7 P1 8, 715, 717, 753). HD stars in 159 the cluster: 159 -13 4932 = HD 168137. 159 -14 4991 = HD 168183. 159 -14 4994 = HD 168207. 159 -13 4925 = HD 168075. 159 -13 4926 = HD 168076. 160 a = IC 4706 = -16 4811 = HD 168276 nebulous. 160 b = IC 4707 = -16 4812 = HD 168302 nebulous. Disc. Barnard 1903 (85). 160 FA 86. (93 Pl 31 Pl 34, 715). 161 NGC 6618 = GC 4403 = h 2008 = M 17 = "The Omega nebula" = "The 161 Horseshoe nebula") = "The Swan nebula". Disc. de Cheseaux about 1748 (119). 161 FA 86. (30, 74, 85, 88 Pl 55, 93 Pl 31 Pl 34, 114, 158, 174, 191, 194, 161 216, 228, 234, 260, 349, 482, 486, 520, 573, 578, 603 Pl 38, 630 Pl 6 Pl 7 161 Pl 8, 631, 674, 791). R. The brightest part of the nebula has also been 161 catalogued as -16 4820 = HD 168520. HD stars within the nebula : 161 -16 4817 = HD 168486. 161 -16 4821 = HD 168521. 161 -16 4827 = HD 168569. 161 -16 4828 = HD 168585. 161 -16 4836 = HD 168701/2. 161 The two brightline stars -16 4829 = HD 168607 = Boss 25035, and 161 -16 4830 = HD 168625 = Boss 25037 are situated in the immediate vicinity 161 of the nebula, and they may be partly responsible for the nebular light. 162 IC 4715. Disc. Barnard 1908 (85). (93 Pl 29, Pl 31 Pl 32). R. A remarkable 162 nebulous star-cloud in Sagittarius, which deserves further study. 163 IC 1287. Disc. Barnard 1892 (51). FA 86. (88 Pl 57, 93 Pl 34 Pl 35, 190, 163 294, 297, 339, 366, 482, 486, 630 Pl 7 Pl 8, 715). R. 163 -10 4713 = HD 170740 = Boss 25282. 164 The nebula connected with Nova Aquilae 1918. 164 Disc. Barnard 1918 (ApJ 49 p 199, 1919). 165 a = IC 4812 = The nebula connected with the stars: 165 -37 13017 = HD 176269 = Boss 26099, and -37 13018 = HD 176270 = Boss 26100. 165 Disc. Stewart 1908 (852). References: See below! 165 b = NGC 6726 + NGC 6727. NGC 6726 = GC 5935. NGC 6727 = GC 5936. Disc. 165 Schmidt 1860. (375). FA 40. FA 63. (366, 376, 385, 386, 486, 560, 832, 165 856). R. -37 13023 = HD 176386 = Boss 26118. The star -37 13024 and the 165 nebula NGC 6727 are variable. 165 c = NGC 6729 = GC 5937 = The variable nebula connected with R Corona 165 Austrina = e. Disc. Schmidt 1861. (217, 271, 366, 375, 386, 429, 430, 432, 165 433, 450, 482, 486, 579, 690, 693, 832). 166 Anon. 19h 2.7m, +4 11'. Disc. Kritzinger 1913 (440). R. Not identified. 166 Although Kritzinger's description points to a nebulous star, the nature of 166 this object deserves further study. 167 +22 3693 = HD 182918 nebulous. Disc. Miss Harwood 1928 =330). WP 152. 167 (630 Pl 13). 168 +17 3986 nebulous. Source: (93) Pl 42. WP 152. (630 131 13, 715). 169 IC 1305. Disc. Espin 1893 (253). WP 152. (93 Pl 42, 630 Pl 13). 170 NGC 6820 = GC 5945. Disc. Marth. (114, 194, 550, 578). 171 IC 1307. Disc. Espin 1893 (253). WP 151. 172 Emission field (726) No 14. (630 Pl 16, 725). 173 +34 3828 nebulous. Source: (93 Pl 43). WP 154. (715). R. The star 173 responsible for the nebular light is stated to be +34 3828 (93). Then, 173 +34 3830 = HD 189688 (spectrum K5) would only be aligned with the nebula. 174 Emission field (726) No 13. (725). 175 IC 4954 + IC 4955. Disc. Barnard. WP 178. R. The subdivisions a, b, and c 175 are according to Hubble (366). 176 The nebulous region around {gam} Cygni. 176 a = Emission field (726) No 11. 176 b = Emission field (726) No 10. 176 c = The nebula called {gam} Cygni a by Hubble in (366). 176 d = The nebula at +41 3731 = NGC 6914 a (according to Hubble). 176 e = The nebula at +41 3737 = NGC 6914 b (according to Hubble). 176 f = The nebula designated {gam} Cygni b by Hubble (366). R. IC 1318, 176 discovered by Barnard in 1892 (54), refers to {gam} Cygni surrounded by 176 large patches of nebulosity. The main parts are situated as given in the 176 catalogue, and they are identical with Hubble's: {gam} Cygni a, b (No 176 176 c, f). NGC 6914 was discovered by Stephan in 1881 (702). WP 210. (38, 74, 176 88 Pl 76, 93 Pl 44, 114, 196, 208, 216, 239, 253, 288, 294, 304, 322, 337, 176 366, 486, 621, 630 Pl 17. 715, 716, 718, 722, 725, 781, 806). 176 {gam} Cygni = +39 4159 = HD 194093 = Boss 28338. 177 Emission field (726) No 12. (725). R 177 +36 3907 = HD 191610 = Boss 27980 177 = 28 (P) Cygni. There are numerous O 177 stars in the Cygnus cloud which may as well be the light-sources. 178 IC 1310. Disc. Espin 1893 (253). R. Not identified. 179 NGC 6888 = GC 4561 = H IV 72. Disc. 1792. (93 Pl 43 Pl 44, 114, 208, 216, 179 366, 550, 578, 615 Pl 21, 630 Pl 16 Pl 17, 631, 715), 179 R. +37 3821 = HD 192163 = Boss 28056. 180 +36 4105 = HD 195593 = Boss 28551 = 44 Cygni nebulous. R. The nebula 180 probably has a continuous spectrum with it faint emission foreground 180 (727 No 78) which is to be ascribed to an extension of the {gam} Cygni 180 nebulosities. 181 +45 3216 nebulous. Source: (93) Pl 45. 182 The nebulous wreath in Cygnus. 182 a = NGC 6960 = GC 4600 = h 2088 = H V 15. Disc. 1784. 182 b = NGC 6992 = GC 4616 = h 2092 = H V 14. Disc. 1784. 182 c = NGC 6995 = GC 4618 = h 2093. WP 179. (18, 31, 33, 64, 80, 88 Pl 79 Pl 182 80, 92, 114, 174, 208, 210, 216, 238, 240, 241, 304, 321, 365, 366, 415, 182 421, 448, 495, 520, 563, 578, 586, 588, 602, 603 Pl 45, 615 Pl 25, 630 Pl 182 16 Pl 17, 631, 642, 774, 780, 787, 815, 817, 820, 822). R. The nebulous 182 star NGC 6974 = GC 5975 (not identified) probably refers to a part of 182 "the wreath", as does also NGC 6979 = GC 4607 = H II 206. IC 1340 is a 182 part of NGC 6995. 183 The region of the "North America nebula". 183 a = IC 5067. 183 b = IC 5068. 183 c = IC 5070 = "The Pelican nebula". 183 a, b, and c disc. by Espin in 1900 (254). 183 d = NGC 7000 = GC 4621 = h 2096 = H V 37. Disc. 1786. The photographical 183 appearance of the nebula made Wolf suggest the name: "The America nebula". 183 John Herschel's visual observations showed "an immense nebulosity; too 183 ill defined to fix the limits". WP 198. (54, 74, 78, 93 Pl 45 Pl 46, 114, 183 148, 174, 208, 216, 238, 239, 288, 289, 294, 304, 366, 413, 414, 420, 423, 183 438, 482, 486, 524, 526, 542. 578, 615 Pl 24, 620, 625, 626, 630 Pl 17 Pl 183 18, 631, 715, 717, 720, 781, 794, 801, 803, 819, 820, 824). R. Bergedorf 183 spectral DM Area 40 is situated in this region. 183 {alf} Cygni = +44 3541 = HD 197345 = Boss 28846. 184 +56 2495 = HD 198793 = Boss 29082 nebulous. Source: (93) Pl 47. (715). 185 IC 5076. Disc. Roberts 1895 (607). (93 Pl 45 131 48, 603 Pl 23, 610). 185 R. +46 3111 = HD 199478 = Boss 29219. 186 NGC 7008 = GC 4627 = h 2099 = H I 192. Disc. 1787. WP 156. (103, 114, 174, 186 208, 216, 481, 520, 549, 578, 603 Pl 46, 631). R. Although Curtis (208) 186 descibes this object as quite irregular, it has also been classified as a 186 planetary. 187 NGC 7023 = GC 4634 = H IV 74. Disc. 1792. (114, 196, 216, 294, 337, 366, 187 409 Pl 65, 410, 411, 482, 486, 547, 549, 550, 578, 615 Pl 24, 630 Pl 22, 187 691, 715, 813, 820, 821). R. +67-1283 = HD 200775 = Boss 29401. 188 IC 1363. Disc. Espin 1893 (253). R. Not identified. 189 IC 1369. Disc. Pechule 1891 (552). (194, 253). 190 The nebula around +59 2334 = 202214 = Boss 29655. Source: (93) Pl 47 Pl 49. 190 (630 Pl 19). 191 +57 2309 = HD 203025 = Boss 29804 nebulous. Source: (88) Pl 82. (92, 93 Pl 191 47, Pl 49, 366, 630 Pl 19, 715). 192 IC 1378. Disc. Espin 1893 (253). R. Not identified. 193 NGC 7088 = Baxendell's "unphotographable" nebula. Disc. Baxendell 1880 193 (96). (114, 180, 304, 314, 465, 595). 194 +67 1332 = HD 206135 nebulous. Source: (88) Pl 83. (366, 482, 486, 630 Pl 194 21 Pl 22, 715). 195 The region of IC 1396, Disc. Barnard 1894 (54). (79, 93 Pl 49, 482, 486, 195 717, 726 No 22). R. In the catalogue the divisions a and b refer to the 195 stimulating regions of respective +56 2617 = HD 206267 = Boss 30322, and 195 +57 2374 = HD 206773 = Boss 30408. 196 NGC 7129 = GC 4702 = h 2131 = H IV 75. Disc. 1792. (114, 194, 196, 208, 196 216, 217, 304, 366, 486, 549, 578, 608, 615 Pl 9, 631). R. The cluster 196 contains the BD stars: +65 1631, 1633, 1635-1638, which are not in the 196 HD catalogue. NGC 7133 is probably a part of this nebula. 196 Alternative Class: A. 1. 197 IC 1400. Disc. Espin 1893 (253). (93) Pl 48. 198 IC 5146. Discovery announced by Espin in 1894 (253). The nebula was 198 photographed by Barnard in 1893, and by Wolf in 1894. Compare (88) P1 81, 198 and (807). WP 139. (79, 194, 196, 213, 215, 216, 266, 366, 419, 486, 198 550, 630 Pl 19. 715). 199 Emission field (726) No 19. R. +58 2402 = HD 210839 = {lam} Cephei. (725). 200 Emission field (726) No 17. (725). 201 The nebula around +69 1231. Disc. Kopff 1908 (816). (820, 821). 202 IC 1442. Disc. Espin 1893 (253). R. Not identified. 203 Emission field (726) No 16. (93 Pl 50, 540, 725). R. According to (540) 203 the nebula does not condense around any of the stars in the region. 204 Emission field (726) No 30. 205 Emission field (726) No 18. (725). 206 The region of NGC 7380 = GC 4842 = h 2182 = H VIII 77. Disc. 1788. (88 Pl 206 84, 93 Pl 50, 114, 194, 549, 578, 631, 726 No 21, 753, 821). R. Earlier 206 observers than Reinmuth seem to have perceived only the cluster. 206 Alternative Class: A. 1. 207 Emission field (726) No 32. R. The whole region is filled up by faint 207 nebulosity on (630) Pl 19. Two of Wolf's "Cavenebulae" (821) form parts of 207 this region. They are attributed (by Wolf) to the stars +61 2361 = 207 HD 216629, and +61 2372 = HD 217061, both of spectral class B. 207 +61 2373 = HD 217086. 208 IC 1470. Disc. Barnard, Pechule, Spitaler 1892.(50, 103, 106, 217, 364, 208 550, 551, 761, 762). R. Has also been classified as a planetary. 209 NGC 7538 = GC 4907 = H II 706. Disc. 1787. (114, 578, 631, 821). 210 NGC 7635 = GC 4947 = h 2235 = H IV 52. Disc. 1787. (88 Pl 86, 103, 114, 210 364, 366, 482, 486, 578, 630 Pl 20 Pl 24, 715, 761, 762, 821). R. Has 210 also been classified as a planetary. 211 -16 6352 = HD 222800 = Boss 32948 = R Aquarii nebulous. Disc. Lampland 211 1921 (456). (457, 486). 212 NGC 7748 = GC 5008 = h 2266. (114, 209, 216, 578). R. 212 +68 1393 = HD 222958 = Boss 32974. Curtis (209, 216) could find no trace 212 of nebulosity. 213 IC 5366. Disc. Barnard. R. Not identified. 214 The nebula surrounding the two stars +66 1676 = HD 224992, and 214 +66 1679 = HD 225216 = Boss 39. R. Erroneously identified as NGC 7822 214 by Roberts in (624). (630 Pl 20). 215 NGC 7822 = GC 5051 = h 2302. R. The coordinates and the description given 215 by John Herschel must refer to the nebulous cluster containing the HD 215 stars: +68 1423 = HD 225123, and +67 1588 = HD 224825. 215 Compare (630) Pl 20. (114, 304, 631).