I/215 Tables of membership for 43 open clusters (Zhao+, 1995)
Tables of membership for 43 open clusters (1994 Version)
Zhao J.L., Tian K.P.
<Bull. Inf. CDS 47, 5 (1995)>
=1995BICDS..47....5Z 1995BICDS..47....5Z
ADC_Keywords: Clusters, open ; Proper motions ;
Description:
Relative proper motion data have been widely used to determine
membership of open clusters. In view of the fact that most of data of
proper motions had been obtained before Sanders' method was set up and
information on membership of open clusters had been mostly published
without a statistically rigorous method available, it is necessary to
restudy membership of clusters from data by means of the rigorous
method. 59 pieces of relative proper motion data for 43 open clusters
having been collected, we, by use of the improved Sanders' method,
calculate membership probabilities of all the stars for each field,
based upon which individual member stars are found. Recently we have
obtained proper motions and membership of open clusters of M67,
NGC2286 and Orion, which are also included in this new version. All the
results concerned are given in the form of catalogue.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
summary 118 118 List of Clusters
ber58 45 41 Berkeley 58
ic1805 45 354 IC 1805
ic4665 50 275 IC 4665
ic4756 45 464 IC 4756
ngc129a 45 70 NGC 129
ngc129b 45 326 NGC 129
ngc129c 45 1025 NGC 129
ngc188 45 228 NGC 188
ngc457 45 905 NGC 457
ngc581a 45 791 NGC 581
ngc581b 50 997 NGC 581
ngc654 51 186 NGC 654
ngc663 50 209 NGC 663
ngc752 50 125 NGC 752
ngc1664 45 222 NGC 1664
ngc1817 45 752 NGC 1817
ngc1912 45 998 NGC 1912
ngc2099a 50 243 NGC 2099
ngc2099b 45 292 NGC 2099
ngc2099c 45 489 NGC 2099
ngc2168a 45 763 NGC 2168
ngc2168b 45 2784 NGC 2168
ngc2264 45 245 NGC 2264
ngc2281 45 127 NGC 2281
ngc2286 60 2400 NGC 2286
ngc2420 45 85 NGC 2420
ngc2548 50 114 NGC 2548
ngc2682a 50 158 NGC 2682
ngc2682b 45 343 NGC 2682
ngc2682c 60 1046 NGC 2682
ngc2682d 50 1866 NGC 2682
ngc6530 51 363 NGC 6530
ngc6611 50 142 NGC 6611
ngc6633 45 498 NGC 6633
ngc6705a 50 632 NGC 6705
ngc6705b 50 630 NGC 6705
ngc6705c 50 591 NGC 6705
ngc6811 50 296 NGC 6811
ngc6819 50 189 NGC 6819
ngc6823 50 91 NGC 6823
ngc6882 50 303 NGC 6882
ngc6885 50 215 NGC 6885
ngc6913 45 228 NGC 6913
ngc6939 50 232 NGC 6939
ngc7062 50 165 NGC 7062
ngc7092a 50 50 NGC 7092
ngc7092b 45 1079 NGC 7092
ngc7092c 50 1710 NGC 7092
ngc7209 45 1264 NGC 7209
ngc7654 45 83 NGC 7654
ngc7788a 45 59 NGC 7788
ngc7788b 45 520 NGC 7788
ngc7790 50 638 NGC 7790
oriona 45 222 Orion Nebula
orionb 66 334 Orion Nebula
perh 45 1444 h Per
perx 50 2014 chi Per
tr1a 50 718 Trumpler 1
tr1b 50 555 Trumpler 1
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Byte-by-byte Description of file: summary
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/43]?+ Order number
4- 16 A13 --- Cluster Name of open cluster
17- 31 A15 --- File Name of file
32- 36 I5 --- Nstars ? Total number of stars (1st line)
37- 41 I5 --- Nmembers Number of cluster member (1)
42- 47 F6.2 10mas/yr pmX(fld) Proper motion of field center in X (1)
48- 53 F6.2 10mas/yr pmY(fld) Proper motion of field center in Y (1)
54- 59 F6.2 10mas/yr pmX(cl) Proper motion of cluster center in X (1)
60- 65 F6.2 10mas/yr pmY(cl) Proper motion of cluster center in Y (1)
66- 70 F5.2 10mas/yr sdX(fld) Standard deviation in X of field stars (1)
71- 75 F5.2 10mas/yr sdY(fld) Standard deviation in Y of field stars (1)
76- 80 F5.2 10mas/yr sd(cl) Standard deviation of cluster stars (1)
81- 84 I4 deg PA [-90/90]? Rotation angle to the major axis
of the field distribution
85-120 A36 --- Ref Reference
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Note (1): the next line lists the uncertainty on the parameter
Byte-by-byte Description of file: ber58 ic1805 ic4665 ic4756 oriona perh perx
Byte-by-byte Description of file: ngc129? ngc188 ngc457 ngc581? ngc663 ngc752
Byte-by-byte Description of file: ngc1664 ngc1817 ngc1912 ngc2099? ngc2168?
Byte-by-byte Description of file: ngc2264 ngc2281 ngc2286 ngc2420 ngc2548
Byte-by-byte Description of file: ngc2682? ngc6611 ngc6633 ngc6705? ngc6811
Byte-by-byte Description of file: ngc6819 ngc6823 ngc6882 ngc6885 ngc6913
Byte-by-byte Description of file: ngc6939 ngc7062 ngc7092? ngc7209 ngc7654
Byte-by-byte Description of file: ngc7788? ngc7790 tr1a tr1b
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Bytes Format Units Label Explanations
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2- 5 I4 --- Number The star number
7 A1 --- x_mag [BVPD] Filter Indicator (1)
8 A1 --- f_mag [vf] Note v=very faint f=faint
9- 13 F5.2 --- mag ? Stellar magnitude or diameter (1)
14 A1 --- n_mag [v] v=variable
15- 21 F7.2 mm X [-300/510]? The measured coordinates in X
23- 29 F7.2 mm Y [-300/510]? The measured coordinates in Y
30- 35 F6.2 10mas/yr pmX ? Proper motion in X
36- 41 F6.2 10mas/yr pmY ? Proper motion in Y
42- 45 F4.2 --- Pr Membership probabilities
47- 50 A4 --- oriNumber The number in the original data
52- 55 F4.2 10mas/yr e_pmX ? Mean error on pmX
57- 60 F4.2 10mas/yr e_pmY ? Mean error on pmY
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Note (1): x_mag takes the following values:
'B' if "mag" column contains the B magnitude
'V' if "mag" column contains the V magnitude
'P' if "mag" column contains a photographic magnitude
'D' if "mag" column contains a stellar diameter expressed in mm
Byte-by-byte Description of file: ngc6530 ngc654 orionb
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Bytes Format Units Label Explanations
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2- 5 I4 --- Number The star number
7 A1 --- x_mag [BVPD] Filter Indicator (1)
8 A1 --- f_mag [vf] Note v=very faint f=faint
9- 13 F5.2 --- mag ? Stellar magnitude or diameter (1)
14 A1 --- n_mag [v] v=variable
15- 16 I2 h RAh Right Ascension 1950 (hours)
18- 19 I2 min RAm Right Ascension 1950 (minutes)
21- 24 F4.1 s RAs Right Ascension 1950 (seconds)
26 A1 --- DE- Declination 1950 (sign)
27- 28 I2 deg DEd Declination 1950 (degrees)
30- 31 I2 arcmin DEm Declination 1950 (minutes)
33- 34 I2 arcsec DEs Declination 1950 (seconds)
36- 41 F6.2 10mas/yr pmX ? Proper motion in X
42- 47 F6.2 10mas/yr pmY ? Proper motion in Y
48- 51 F4.2 --- Pr Membership probabilities
53- 56 A4 --- oriNumber The number in the original data
58- 61 F4.2 10mas/yr e_pmX ? Mean error on pmX
63- 66 F4.2 10mas/yr e_pmY ? Mean error on pmY
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Note (1): x_mag takes the following values:
'B' if "mag" column contains the B magnitude
'V' if "mag" column contains the V magnitude
'P' if "mag" column contains a photographic magnitude
'D' if "mag" column contains a stellar diameter expressed in mm
(End) Francois Ochsenbein, Joseph Florsch [CDS] 28-Mar-1995