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B/ocl     Optically visible open clusters and Candidates (Dias+ 2002-2015)

New catalog of optically visible open clusters and candidates (V3.5) Dias W.S., Alessi B.S., Moitinho A., Lepine J.R.D. <Astron. Astrophys. 389, 871 (2002)> =2002A&A...389..871D
ADC_Keywords: Clusters, open ; Proper motions ; Radial velocities ; Abundances, [Fe/H] Keywords: galaxy: open clusters and associations: general - catalogs Description: We have compiled a new catalogue of open clusters in the Galaxy which updates the previous catalogues of Lynga (1987, Cat. VII/92) and of Mermilliod (1995, in Information and On-Line Data in Astronomy, ed. D. Egret & M. A. Albrecht (Dordrecht: Kluwer), 127) (included in the WEBDA database, New objects and new data, in particular, data on kinematics (proper motions) that were not present in the old catalogues, have been included. Virtually all the clusters (2167) presently known were included, which represents an increment of about 986 objects relative to the Lynga (1987, VII/92) catalogue. The catalogue is presented in a single table containing all the important data, which makes it easy to use. In total, 99.7% of the objects have estimates of their apparent diameters, and 74.5% have distance, E(B-V) and age determinations. Concerning the data on kinematics, 54.7% have their mean proper motions listed, 25% their mean radial velocities, and 24.2% have both information simultaneously. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file whatsnew.txt 177 8771 Statistics and History of the Catalogue clusters.dat 152 2167 The Catalogue Data File (V3.5) refs.dat 130 92 References for proper motions and radial velocities removed.dat 174 147 Removed clusters (V3.5) sources.dat 182 1803 References (V3.5) phot.dat 44 569 Available photometric data (on Jan 23 2002)
See also: VII/92 : Open Cluster Data 5th Edition (Lynga 1987) VII/101 : Star Clusters/Associations. III. Open Clusters (Ruprecht+ 1983) : Open clusters and Galactic structure : WEBDA database Byte-by-byte Description of file: clusters.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Cluster Cluster name 19- 20 I2 h RAh Right Ascension J2000 (hours) 22- 23 I2 min RAm Right Ascension J2000 (minutes) 25- 26 I2 s RAs Right Ascension J2000 (seconds) 28 A1 --- DE- Declination J2000 (sign) 29- 30 I2 deg DEd Declination J2000 (degrees) 32- 33 I2 arcmin DEm Declination J2000 (minutes) 35- 36 I2 arcsec DEs Declination J2000 (seconds) 38- 39 A2 --- Class Flag for classification of the cluster (G1) 42- 47 F6.1 arcmin Diam [0.2/1400]? Angular apparent diameter 49- 53 I5 pc Dist [25/15000]? Distance from WEBDA 55- 59 F5.3 mag E(B-V) [0/6]? Colour excess in BV 61- 66 F6.3 [yr] Age [6/10.1]? Age (in log t) 68- 74 F7.2 mas/yr pmRA ? Mean proper motion of the cluster in RA 76- 79 F4.2 mas/yr e_pmRA ? Standard deviation in pmRA 81- 87 F7.2 mas/yr pmDE ? Mean proper motion of the cluster in Dec 89- 92 F4.2 mas/yr e_pmDE ? Standard deviation in pmDE 94- 98 I5 --- Nc [1/14341]? Estimated number of cluster members 100-102 A3 --- r_pmRA Source of mean pm determination, in refs.dat 105-111 F7.2 km/s RV ? Radial Velocity 114-118 F5.2 km/s e_RV ? Error in Radial Velocity 120-122 I3 --- o_RV [0/537]? Number of stars used to determine RV 124-127 A4 --- r_RV Source of mean RV determination, in refs.dat 129-134 F6.3 Sun [Fe/H] [-1.6/0.5]? Metallicity 136-140 F5.3 Sun e_[Fe/H] ? Error in [Fe/H] 142-143 I2 --- o_[Fe/H] [0/60]? Number of stars used to determine [Fe/H] 145-152 A8 --- TrType Trumpler type determined in the DSS inspection (concentration-brightness-richness-nebulosity)
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 4 A4 --- Ref Reference code 8- 26 A19 --- BibCode Bibcode of the references 28-130 A103 --- Text Author(s) names and comments
Byte-by-byte Description of file: sources.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Object Objects associated with the reference 25-182 A158 --- Com Comments, including the bibcode
Byte-by-byte Description of file: removed.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Cluster Cluster name 19- 20 I2 h RAh Right Ascension J2000 (hours) 22- 23 I2 min RAm Right Ascension J2000 (minutes) 25- 26 I2 s RAs Right Ascension J2000 (seconds) 29 A1 --- DE- Declination J2000 (sign) 30- 31 I2 deg DEd Declination J2000 (degrees) 33- 34 I2 arcmin DEm Declination J2000 (minutes) 36- 37 I2 arcsec DEs Declination J2000 (seconds) 41- 46 F6.1 arcmin Diam ? Angular apparent diameter 50- 78 A29 --- Reason Reason of removing the cluster 80-174 A95 --- Ref Reference used for deletion
Byte-by-byte Description of file: phot.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Cluster Cluster name 19- 23 A5 --- CCD [UBVRI ] Bands observed with CCD 25- 29 A5 --- Pe [UBVRI ] Bands observed with photomultipliers 31- 33 A3 --- Pg [UBV ] Bands observed with photographic plates 35- 44 A10 --- Alias Other name
Global notes: Note (G1): The flag has the following meaning: a = possible asterism/dust hole/star cloud (no cluster) cr = Cluster Remnant (Pavani and Bica 2007A&A...468..139P) d = dubious, objects considered doubtful by the DSS images inspection e = embedded open cluster (or cluster associated with nebulosity) g = possible globular cluster m = possible moving group n = "non-existent NGC" (RNGC, Sulentic, 1979, Cat. VII/1). Some of Bica's POCRs (Possible Open Cluster Remnant, 2001A&A...366..827B) are also "non-existent NGC" objects. nf = objects not found in the DSS images inspection (wrong coordinates?) o = possible OB association (or detached part of) oe = o + e oev = o + e + v p = POCR (Possible Open Cluster Remnant) - Bica et al., 2001A&A...366..827B r = recovered, i.e. "non-existent NGC" that are well visible in the DSS images inspection v = clusters with variable extinction (Ahumada et al., 2001A&A...377..845A) OC = likely cluster (Kronberger M, private communication) OC? = possible cluster (Kronberger M, private communication) IR = discovered in infra-red but are visible in the DSS images inspection
History (see also the file "whatsnew.txt"): Version of 08-Aug-2002 at Version of 01-Jun-2003 at (version 1.5) Version of 03-Jul-2003 at (version 1.6) Version of 03-Sep-2003 at (version 1.7) Version of 10-Sep-2003 at (version 1.8) Version of 15-Feb-2004 at (version 1.9) Version of 07-Jun-2004 at (version 2.0) Version of 06-Jan-2005 at (version 2.1) Version of 14-Jan-2006 at (version 2.4) Version of 17-Sep-2007 at (version 2.8) Version of 23-Apr-2008 at (version 2.9) Version of 19-Feb-2009 at (version 2.10) Version of 23-Apr-2010 at (version 3.0) Version of 28-Jan-2012 at (version 3.2) * 19-Sep-2002: Galactic coordinates and proper motions recomputed from the equatorial position. Stored as catalog VII/229 * 12-Jan-2006: Installation of version 2.4 (VII/229) * 02-Oct-2007: Installation of version 2.8 (B/ocl). In file "phot.dat" a few names were changed to match the cluster names in the files "clusters.dat" and "removed.dat": Basel 19 = Hogg 16 ; Collinder 258 = Harvard 5; ESO 096-04 = BH 144; Stock 7 = Markarian 6 * 27-Apr-2010: Installation of version 3.0 (2095 clusters), from * 30-Jan-2012: Installation of version 3.2 (2134 clusters), from * 16-Jan-2013: Installation of version 3.3 (2174 clusters), from * 30-Jun-2013: Installation of version 3.4 (2168 clusters), from * 11-sep-2015: Installation of version 3.4b (corrections) * 17-feb-2016: Installation of version 3.5 Acknowledgements: Extensive use has been made of the Simbad and WEBDA databases. This project is supported by FAPESP (grant number 03/12813-4) and CAPES (CAPES-GRICES grant number 040/2008)
(End) Francois Ochsenbein [CDS] 13-Oct-2014
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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