J/A+A/376/441 Absolute proper motions of 112 open clusters (Dias+, 2001)
Proper motions of open clusters within 1 kpc based on the TYCHO2 Catalogue.
Dias W.S., Lepine J.R.D., Alessi B.S.
<Astron. Astrophys. 376, 441 (2001)>
=2001A&A...376..441D 2001A&A...376..441D
ADC_Keywords: Clusters, open ; Proper motions
Keywords: Galaxy: open clusters and associations: general - astrometry
Abstract:
We present mean absolute proper motions of 112 open clusters,
determined using the data from the Tycho2 Catalogue (Cat. I/259).
For 28 clusters, this is the first determination of proper motion. The
measurements made use of a large number of stars (usually several
tens) for each cluster. The total number of stars studied in the
fields of the 164 open clusters is 5016, of which 4006 were considered
members. The mean proper motions of the clusters and membership
probability of individual stars were obtained from the proper motion
data by applying the statistical method proposed by Sanders
(1971A&A....14..226S 1971A&A....14..226S).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
clusters.dat 52 112 Cluster positions (from Simbad)
table1.dat 53 41 List of clusters for which the statistical
method was unable to provide accurate
proper motions.
table2.dat 87 112 List the parameters provided by the method
of Sanders for 112 open clusters
pm/blanco1.dat 76 101 Proper motions and membership, by cluster
pm/bochum5.dat 76 56 Proper motions and membership, by cluster
pm/col121.dat 76 179 Proper motions and membership, by cluster
pm/col132.dat 76 212 Proper motions and membership, by cluster
pm/col135.dat 76 58 Proper motions and membership, by cluster
pm/col140.dat 76 36 Proper motions and membership, by cluster
pm/col197.dat 76 38 Proper motions and membership, by cluster
pm/col258.dat 76 25 Proper motions and membership, by cluster
pm/col359.dat 76 84 Proper motions and membership, by cluster
pm/col394.dat 76 51 Proper motions and membership, by cluster
pm/col399.dat 76 226 Proper motions and membership, by cluster
pm/col463.dat 76 77 Proper motions and membership, by cluster
pm/col69.dat 76 87 Proper motions and membership, by cluster
pm/col70.dat 76 542 Proper motions and membership, by cluster
pm/col97.dat 76 35 Proper motions and membership, by cluster
pm/ic2395.dat 76 19 Proper motions and membership, by cluster
pm/ic2488.dat 76 63 Proper motions and membership, by cluster
pm/ic2602.dat 76 124 Proper motions and membership, by cluster
pm/ic348.dat 76 21 Proper motions and membership, by cluster
pm/ic4651.dat 76 43 Proper motions and membership, by cluster
pm/ic4665.dat 76 160 Proper motions and membership, by cluster
pm/ic4725.dat 76 85 Proper motions and membership, by cluster
pm/ic4756.dat 76 181 Proper motions and membership, by cluster
pm/ic5146.dat 76 40 Proper motions and membership, by cluster
pm/lynga2.dat 76 33 Proper motions and membership, by cluster
pm/mel20.dat 76 97 Proper motions and membership, by cluster
pm/mel22.dat 76 365 Proper motions and membership, by cluster
pm/ngc1027.dat 76 61 Proper motions and membership, by cluster
pm/ngc1039.dat 76 105 Proper motions and membership, by cluster
pm/ngc1342.dat 76 31 Proper motions and membership, by cluster
pm/ngc1502.dat 76 15 Proper motions and membership, by cluster
pm/ngc1513.dat 76 20 Proper motions and membership, by cluster
pm/ngc1528.dat 76 63 Proper motions and membership, by cluster
pm/ngc1545.dat 76 21 Proper motions and membership, by cluster
pm/ngc1647.dat 76 85 Proper motions and membership, by cluster
pm/ngc1662.dat 76 34 Proper motions and membership, by cluster
pm/ngc1758.dat 76 71 Proper motions and membership, by cluster
pm/ngc1901.dat 76 60 Proper motions and membership, by cluster
pm/ngc1976.dat 76 41 Proper motions and membership, by cluster
pm/ngc2168.dat 76 154 Proper motions and membership, by cluster
pm/ngc2232.dat 76 66 Proper motions and membership, by cluster
pm/ngc225.dat 76 39 Proper motions and membership, by cluster
pm/ngc2264.dat 76 81 Proper motions and membership, by cluster
pm/ngc2281.dat 76 60 Proper motions and membership, by cluster
pm/ngc2287.dat 76 168 Proper motions and membership, by cluster
pm/ngc2301.dat 76 89 Proper motions and membership, by cluster
pm/ngc2323.dat 76 100 Proper motions and membership, by cluster
pm/ngc2353.dat 76 35 Proper motions and membership, by cluster
pm/ngc2374.dat 76 43 Proper motions and membership, by cluster
pm/ngc2391.dat 76 141 Proper motions and membership, by cluster
pm/ngc2422.dat 76 39 Proper motions and membership, by cluster
pm/ngc2423.dat 76 93 Proper motions and membership, by cluster
pm/ngc2482.dat 76 57 Proper motions and membership, by cluster
pm/ngc2516.dat 76 81 Proper motions and membership, by cluster
pm/ngc2527.dat 76 62 Proper motions and membership, by cluster
pm/ngc2546.dat 76 286 Proper motions and membership, by cluster
pm/ngc2547.dat 76 38 Proper motions and membership, by cluster
pm/ngc2548.dat 76 107 Proper motions and membership, by cluster
pm/ngc2579.dat 76 14 Proper motions and membership, by cluster
pm/ngc2632.dat 76 138 Proper motions and membership, by cluster
pm/ngc2669.dat 76 32 Proper motions and membership, by cluster
pm/ngc2670.dat 76 18 Proper motions and membership, by cluster
pm/ngc2682.dat 76 53 Proper motions and membership, by cluster
pm/ngc2925.dat 76 71 Proper motions and membership, by cluster
pm/ngc3114.dat 76 266 Proper motions and membership, by cluster
pm/ngc3228.dat 76 32 Proper motions and membership, by cluster
pm/ngc3496.dat 76 17 Proper motions and membership, by cluster
pm/ngc3532.dat 76 211 Proper motions and membership, by cluster
pm/ngc3680.dat 76 24 Proper motions and membership, by cluster
pm/ngc5460.dat 76 94 Proper motions and membership, by cluster
pm/ngc5662.dat 76 109 Proper motions and membership, by cluster
pm/ngc5822.dat 76 257 Proper motions and membership, by cluster
pm/ngc5823.dat 76 31 Proper motions and membership, by cluster
pm/ngc6025.dat 76 66 Proper motions and membership, by cluster
pm/ngc6087.dat 76 83 Proper motions and membership, by cluster
pm/ngc6124.dat 76 117 Proper motions and membership, by cluster
pm/ngc6134.dat 76 28 Proper motions and membership, by cluster
pm/ngc6167.dat 76 22 Proper motions and membership, by cluster
pm/ngc6249.dat 76 17 Proper motions and membership, by cluster
pm/ngc6250.dat 76 23 Proper motions and membership, by cluster
pm/ngc6281.dat 76 37 Proper motions and membership, by cluster
pm/ngc6405.dat 76 60 Proper motions and membership, by cluster
pm/ngc6416.dat 76 70 Proper motions and membership, by cluster
pm/ngc6475.dat 76 411 Proper motions and membership, by cluster
pm/ngc6494.dat 76 147 Proper motions and membership, by cluster
pm/ngc6514.dat 76 56 Proper motions and membership, by cluster
pm/ngc6546.dat 76 43 Proper motions and membership, by cluster
pm/ngc6633.dat 76 85 Proper motions and membership, by cluster
pm/ngc6709.dat 76 50 Proper motions and membership, by cluster
pm/ngc6716.dat 76 23 Proper motions and membership, by cluster
pm/ngc6885.dat 76 46 Proper motions and membership, by cluster
pm/ngc6940.dat 76 128 Proper motions and membership, by cluster
pm/ngc7063.dat 76 29 Proper motions and membership, by cluster
pm/ngc7092.dat 76 27 Proper motions and membership, by cluster
pm/ngc7160.dat 76 20 Proper motions and membership, by cluster
pm/ngc7209.dat 76 72 Proper motions and membership, by cluster
pm/ngc7243.dat 76 133 Proper motions and membership, by cluster
pm/ngc752.dat 76 268 Proper motions and membership, by cluster
pm/pismis4.dat 76 58 Proper motions and membership, by cluster
pm/ros5.dat 76 229 Proper motions and membership, by cluster
pm/rup119.dat 76 31 Proper motions and membership, by cluster
pm/rup147.dat 76 56 Proper motions and membership, by cluster
pm/rup98.dat 76 60 Proper motions and membership, by cluster
pm/ste1.dat 76 35 Proper motions and membership, by cluster
pm/stock10.dat 76 94 Proper motions and membership, by cluster
pm/stock2.dat 76 108 Proper motions and membership, by cluster
pm/tru10.dat 76 44 Proper motions and membership, by cluster
pm/tru2.dat 76 31 Proper motions and membership, by cluster
pm/tru37.dat 76 200 Proper motions and membership, by cluster
pm/vdbh23.dat 76 65 Proper motions and membership, by cluster
pm/vdbh34.dat 76 39 Proper motions and membership, by cluster
pm/vdbh99.dat 76 24 Proper motions and membership, by cluster
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See also:
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
Byte-by-byte Description of file: clusters.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Cluster name
20- 21 I2 h RAh Right ascension (J2000.0)
23- 24 I2 min RAm Right ascension (J2000.0)
26- 29 F4.1 s RAs Right ascension (J2000.0)
31 A1 --- DE- Declination sign (J2000.0)
32- 33 I2 deg DEd Declination (J2000.0)
35- 36 I2 arcmin DEm Declination (J2000.0)
38- 39 I2 arcsec DEs Declination (J2000.0)
42- 52 A11 --- FileName File name in "pm" subdirectory (2)
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Note (2): For clusters, the following abbreviations are used:
col = Collinder
rup = Ruprecht
vdbh = vdB-Hagen
mel = Melotte
ros = Roslund
ste = Stephenson
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 A13 --- Name Name of the cluster
15 A1 --- Note [*] Note for σ Ori cluster (1)
17- 18 I2 h RAh Right ascension (J2000.0)
20- 21 I2 min RAm Right ascension (J2000.0)
23- 24 I2 s RAs Right ascension (J2000.0)
27 A1 --- DE- Declination sign
28- 29 I2 deg DEd Declination (J2000.0)
31- 32 I2 arcmin DEm Declination (J2000.0)
34- 37 I4 arcmin D ? Diameter in arcmin (1)
40- 43 I4 pc d Distance in pc (1)
48- 51 F4.2 [yr] logAge ? Age (1)
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Note (1): Distances and ages obtained from WEBDA, http://obswww.unige.ch/webda
For σ Ori, distance from Baumgardt et al., 2000,
Cat. J/A+AS/146/251, and age from WEBDA
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Name of the cluster
15- 16 A2 --- Notes [:*+ ] Existence of notes (1)
18- 20 I3 --- Nc Estimated number of members in the cluster
22- 26 F5.1 mas/yr pmRAcl Mean proper motion of the cluster
µαcosδ, ICRS
28- 32 F5.1 mas/yr pmDEcl Mean proper motion of the cluster
µδ, ICRS
34- 36 F3.1 mas/yr e_pm Standard deviation in pmRAcl and pmDEcl
38- 40 I3 --- Ni Estimated number of field stars
42- 46 F5.1 mas/yr pmRAs Mean proper motion of the field stars
µαcosδ_, ICRS
48- 51 F4.1 mas/yr e_pmRAs Standard deviation of pmRAs
53- 57 F5.1 mas/yr pmDEs Mean proper motion of the field stars in
µδ, ICRS
59- 62 F4.1 mas/yr e_pmDEs Standard deviation of pmDEs
64- 70 F7.3 deg theta [0/360] Rotation angle to the major axis
72- 75 F4.2 mas Plx ? Mean trigonometric parallax (2)
77- 80 F4.2 mas e_Plx ? Standard error in Plx (2)
82- 85 I4 pc d ? Distance from WEBDA (3)
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Note (1): The flag denotes:
* = Clusters that were not previously studied by Baumgardt et al.,
2000, Cat. J/A+AS/146/251
+* = Clusters for which we derived the mean parallax
: = Cluster commented in the text
Note (2): Data obtained from Baumgardt et al., 2000, Cat. J/A+AS/146/251
Note (3): Obtained from WEBDA, http://obswww.unige.ch/webda
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Byte-by-byte Description of file: pm/*
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Bytes Format Units Label Explanations
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1- 10 I10 mas RAmas Right ascension (J2000.0) from Tycho2
12- 21 I10 mas DEmas Declination (J2000.0) from Tycho2
23- 27 F5.2 mag VTmag Magnitude of the star from Tycho2
30- 32 I3 mas e_RAmas Standard deviation in RA
36- 38 I3 mas e_DEmas Standard deviation in DE
41- 47 F7.2 mas/yr pmRA Proper motion µαcosδ, ICRS
50- 56 F7.2 mas/yr pmDE Proper motion µ_δ, ICRS
58- 63 F6.2 mas/yr e_pmRA Standard deviation of pmRA, ICRS
66- 71 F6.2 mas/yr e_pmDE Standard deviation of pmDE, ICRS
74- 76 I3 % Pr [0/100] Membership probability
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Acknowledgements: Wilton Dias
(End) Patricia Bauer [CDS] 16-Oct-2001