1938B The supernova is located in double system of galaxies. NGC 2673 was 1938B adopted to be the parent galaxy. 1956B The supernova is located in double system of galaxies. NGC 4783 was 1956B adopted to be the parent galaxy. 1964O Intergalactic supernova. 1966O Intergalactic supernova. 1980I Intergalactic supernova. 1983ab Discovered by S.Antipin in 1996 on Moscow plate collection taken with 1983ab the Crimean 0.40-m astrograph. 1984H Identification of parent galaxy is uncertain. 1985F Maximum light occurred in 1984 and was determined by prediscovery 1985F plates. 1985T The parent galaxy of this SN is named "ANONYMOUS" in IAU Circ. 6436, 1985T 1996 but it is apparently "ESO 192-7". 1987F and 1988I (1989AJ.....97..726F) and IAU Circular 6589, 1997. 1987F These supernovae were discovered in the program of Supernova Cosmology 1987F Project, where N. Walton and P. Ruiz-Lapuente were new participants. 1988I and 1987F (1989AJ.....97..726F) and IAU Circular 6589, 1997. 1988I These supernovae were discovered in the program of Supernova Cosmology 1988I Project, where N. Walton and P. Ruiz-Lapuente were new participants. 1989X offsets from the nucleus "5.8sw" (Richmond and IAUC) versus "2.5E 2.5S" 1989X (ours) 1990ai Intergalactic supernova. 1991az it looks like the galaxy is "MCG 04-06-29" but it was designated "ANON" 1991az in IAU Circ. N 5356, 1991. 1992ad We accepted offsets for the supernova according to R.H.McNaught 1992ad (34".6 east, 26".2 south) instead of the offsets measured by R.Evans 1992ad (40" east and 40" south). 1992ay The supernova is located in double system of galaxies. 1992ba the offsets from Evans are "60W 0S". We calculated from the galaxy and 1992ba supernova equatorial coordinates the offsets "27W 3N". But the problem 1992ba remains. 1993ae Are "U 1071" and "I 126" the same galaxies? 1994ab There are two designations for the galaxy MCG-05-50-008 or E 464-G30 1994ak its offsets were changed from "58w 33s" to "43W 27S" 1995N The parent galaxy of this SN is the brighter in a pair. 1996ae The profile of H-alpha is reminiscent of that shown by the peculiar 1996ae type-II (IIn) supernova 1988Z (see Turatto et al. 1993, MNRAS 262, 128) 1996ai There is a broad absorption trough at 614 nm, the defining feature of 1996ai type-Ia supernovae, but this might instead be redshifted H-alpha 1996ai absorption in a type-II object. (see IAU Circ. 6423, 1996). 1996bo Discovered independantly by both Chinese and Japanese astronomers 1996bp There is also image obtained one day before the discovery. 1996bp The galaxy was noted as elliptical in IAU Circulair, but it classified 1996bp as lenticular in PGC. 1996bw There are many reported positions for the supernova in IAU Circulars 1996bw from different observers ( No 6516, 6557 ) M. Cavagna and F. Manca, 1996bw Sormano: R.A. = 1h43m44s.58, Decl. = +4d13'19".7 ; G. J. Garradd, 1996bw Loomberah, N.S.W.: 44.68, 20.0 ( and figures ) D. di Cicco, Sudbury, MA: 1996bw 44.48, 19.8 ( '' ) C. Hergenrother: 44.51, 19.0 ( '' ) We adopted values 1996bw 44.51, 19.7 ( '' ) 1996cb According to IAU Circular N 6528 it is type-IIb supernova but we did not 1996cb adopt this designation as well. 1996cf This SN was discovered by Supernova Cosmology Project and A. Fisher (see 1996cf IAU Circular 6621, 1997). 1997D The velocities pointed out in RC3 and in IAU Circular N 6537 are quite 1997D different from each other ( 1565 km/s vs 1296 km/s ) 1997W The position of this SN is 0".7 west and 2".4 south of SN 1996bw ( it 1997W was pointed out in IAU Circular 6551, 1997 ). So the position of SN 1997W 1997W assumed to be 20".4 west and 5".7 south of the center of the host 1997W galaxy. 1997aa Spectrum shows weak, yet conspicuous, H Balmer lines. 1997ab Spectroscopic properties indicate of this SN resemble those of Type 1 1997ab Seyfert nuclei and QSOs. See the paper of Alexei V. Filippenko "The 1997ab 'Seyfert 1" Optical Spectra of the Type II Supernovae 1997ac 1997ac... ...1997ar These supernovae were discovered in the program 1997ac of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ac were new participants. 1997ad 1997ac... ...1997ar These supernovae were discovered in the program 1997ad of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ad were new participants. 1997ae 1997ac... ...1997ar These supernovae were discovered in the program 1997ae of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ae were new participants. 1997af 1997ac... ...1997ar These supernovae were discovered in the program 1997af of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997af were new participants. 1997ag 1997ac... ...1997ar These supernovae were discovered in the program 1997ag of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ag were new participants. 1997ah 1997ac... ...1997ar These supernovae were discovered in the program 1997ah of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ah were new participants. 1997ai 1997ac... ...1997ar These supernovae were discovered in the program 1997ai of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ai were new participants. 1997aj 1997ac... ...1997ar These supernovae were discovered in the program 1997aj of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997aj were new participants. 1997ak 1997ac... ...1997ar These supernovae were discovered in the program 1997ak of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ak were new participants. 1997al 1997ac... ...1997ar These supernovae were discovered in the program 1997al of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997al were new participants. 1997am 1997ac... ...1997ar These supernovae were discovered in the program 1997am of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997am were new participants. 1997an 1997ac... ...1997ar These supernovae were discovered in the program 1997an of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997an were new participants. 1997ao 1997ac... ...1997ar These supernovae were discovered in the program 1997ao of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ao were new participants. 1997ap 1997ac... ...1997ar These supernovae were discovered in the program 1997ap of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ap were new participants. 1997aq 1997ac... ...1997ar These supernovae were discovered in the program 1997aq of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997aq were new participants. 1997ar 1997ac... ...1997ar These supernovae were discovered in the program 1997ar of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ar were new participants. 1997br Bright Type Ia supernova. Photometric evolution is similar to that of SN 1997br 1991T. 1997bs As the types IIn and IIb are still not included to the main list. 1997bw There is no detectable host galaxy for this supernovae ( as it was 1997bw pointed out in IAU Circular 6633, 1997 ). 1997by The parent galaxy for this SN locates in the cluster Abell 1736. 1997bz The spectra are heavily contaminated by the host galaxy, but they 1997bz indicate that this SN is of type Ia. 1997ck This supernova was discovered at z=0.97. 1997cn M.Turatto et al. pointed out in IAU Circular N 6667, 1997, that its 1997cn spectrum closely resembles that of SN 1991bg one day after maximum ( 1997cn Turatto et al. 1991, MNRAS 283, 1). SN 1997cn could be important in 1997cn light of D.Branch's and S. van den Bergh's paper ( D.Branch & S. van den 1997cn Bergh, 1993, AJ, 105, 2231 ) named "Spectroscopic differences between 1997cn Type Ia supernovae in early-type and those ones in late-type galaxies". 1997cn One can call this supernova as a "twin" to SN 1991bg in a certain sense. 1997cn But let us see what will happen with SN 1997cn in the future. 1997cn We adopted "Ia" designation for the type of the SN as in case of 1997cn SN 1991bg. 1997cq The galaxy from which the offset is pointed out is not necessary the 1997cq host one. So we leave blank corresponding place in the Catalogue. This 1997cq supernova discovered on McDonald Observatory raises the question about 1997cq location of the parent galaxy for a supernova and reality of connection 1997cq between the latter and the former. In our Catalogue we try to exclude 1997cq controversial cases when the parent galaxy is not located clearly 1997cq adopting designation "ANON" for the galaxy. Our Catalogue demonstrates 1997cq that the number of supernovae for which parent galaxy was not located 1997cq clearly is increasing, so one can make special researches for such 1997cq cases, especially for supernovae in clusters of galaxies. 1997cq Another Type IIn supernova. The type designation "IIPec" was adopted in 1997cq main Catalogue list for this supernova. 1997cr The Type II identification for this SN is still under question. (IAU 1997cr Circular, 6682, 1997) and parent galaxy may not belong to the cluster. 1997cr So c*z pointed out in the main Catalogue list may be somewhat uncertain. 1997cs Another Type IIn supernova. Again the type designation "IIPec" was 1997cs adopted in main Catalogue list for this supernova as in case of 1997cs SN 1997cq. 1997cw SN 1991T-like peculiar type Ia SN, near or soon after optical maximum. 1997cw This supernova is seriously reddened by NGC 105. We adopted "IaPec?" 1997cw designation for the type of the SN as in case of SN 1991T. 1997cx Rather bright Type II SN discovered by M.Schwartz. 1997db The second supernova discovered in the UGC 11861. Note that the first 1997db one, SN 1995ag, was also of Type II. 1997dd As N.Suntzeff and M.Phillips report in IAU Circ. N 6725, the spectrum 1997dd appears to be intermediate between types II-P and Ib. We confirm their 1997dd classification "IIPec" for this supernova, as there was hydrogen in 1997dd spectrum obtained near light maximum. 1997ef This SN has unusual spectra. A.V.Filippenko et al. (IAUC 6783, 6786, 1997ef 6798) found out that it could be an extreme, previously unobserved case 1997ef of peculiar type Ib or Ic supernova. 1997eg A.V.Filippenko and A.J.Barth noted (IAUC 6794) that this SN closely 1997eg resembles SN 1988Z. The latter is known to be a special object among 1997eg type IIn SNe. 1997ei K. Ayani and H. Yamaoka reported (IAUC 6800) that this SN could have 1997ei been peculiar, probably fast-declining and sub-luminous type Ia event. 1997ei But no photometry is still available for this SN, and we adopted type 1997ei Ia classification. 1997ff One of two first SNe discovered with help of HST 1997fg One of two first SNe discovered with help of HST 1998A SN light curve has secondary maximum like in the case of SN 1987A. 1998E Another Type IIn supernova. Again the type designation "IIPec" was 1998E adopted in main Catalogue list for this supernova as in case of all 1998E other Type IIn SNe. (See IAU Circ. N 6817) 1998S Type IIn SN. 1998T There was an error in the name of the parent galaxy for this SN. H. 1998T Yamaoka, T. Kato, A.V. Filippenko, and S. D. Van Dyk corrected precise 1998T position of this SN. 1998ab Unusual Type Ia SN with spectrum resembling that of SN 1991T. 1998ae Z=1.1 for this supernova. We remind that C*Z rather than true 1998ae relativistic V is presented in the Catalogue for distant SNe. 1998bw GRB occured near the position of SN. There were suggestions that these 1998bw events are associated. 1998ct Type-IIn SN.