LyngaOpenCl ivo://nasa.heasarc/lyngaclust NASA/GSFC HEASARC Lynga 2026-05-22 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Star Cluster This is a catalog of open cluster data, as compiled by Gosta Lynga, Lund Observatory. The aim of this catalog is to give salient data for all known open star clusters in our galaxy. As far as possible only published data values have been quoted; for some of the parameters, these values have been slected from references which can be obtained from the HEASARC. This data in part results from the merging of the data resulting from a joint project between K. Janes, C. Duke and Lynga, herein refered to as JDL data. The aim of that project was to discuss properties of the open cluster system by using existing data and by taking their accuracy into proper regard. Thus the data were assessed, mostly by Janes, weight assigned and weighted mean values derived of reddenings, turn-off colors and distances. This is a service provided by NASA HEASARC . https://heasarc.gsfc.nasa.gov/W3Browse/all/lyngaclust.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=lyngaclust& GET text/xml 180 99999 true 0.6442508 67.3784003 0.5 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=lyngaclust GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_lyngaclust&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.5 Optical public lyngaclust Lynga Open Clusters Catalog name Cluster Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable "distance" Distance (in parsecs) pc pos.distance short nullable log_age Log of Age in years double nullable angular_diameter Angular Diameter (arcmin) arcmin float nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable ja_class Janes-Adler Class short nullable sb_bs_mag Strasbourg-Bochum Magnitude, Brightest float nullable ref_radvel1 Reference for Radial Velocity short nullable metallicity Logarithm of the Metallicity float nullable jdl_turnoff_color JDL Turn-Off Color double nullable neg_seq_num_tracer Tracer, -number in sequence short nullable jdl_age_weight JDL Age Weight Class short nullable ref_type_flag Reference for Type Flag short nullable sk_bv_color Skiff Integrated B-V float nullable tr_range_class Trumpler Range Class short nullable alt_name Alternate Cluster Designation meta.id char nullable pos_ra_tracer Tracer, +RA, 1950 short nullable ly_tr_richness_class Trumpler Richness Class, 82 Data char nullable ref_jdl4 JDL Reference 4 short nullable jdl_age JDL Derived Age (10^6 years) Myr double nullable radvel_weight Weights for Radial Velocity float nullable ref_ja_bv_turnoff Janes-Adler BV Turnoff Reference short nullable class Browse Object Classification src.class short nullable ly_tr_concent_class Trumpler Concentration Class, 82 Data short nullable prec_ra Precession, 10 yrs, ra, in minutes of arc arcmin/10_y float nullable tr_concent_class Trumpler Concentration Class short nullable seq_code Sequence Code short nullable pos_seq_num_tracer Tracer, +number in sequence short nullable ref_jdl5 JDL Reference 5 short nullable sk_num_stars Number of Skiff Stars Considered short nullable ja_star_num Janes-Adler Star Number short nullable type_flag Indication of Cluster Type char nullable ref_radvel4 Reference for Radial Velocity short nullable e_bv Reddening, E(B-V) double nullable tr_richness_class Trumpler Richness Class char nullable jdl_reddening_flag Flag [V] Indicates Reddening Varies char nullable ref_jdl6 JDL Reference 6 short nullable ref_jdl3 JDL Reference 3 short nullable jdl_distance JDL Distance pc int nullable basel_spect_code Basel Spectral Type for Hottest Star int nullable basel_color_type Basel Color Type for Bluest Star int nullable ref_ja_e_bv Janes-Adler E(B-V) Reference short nullable ja_richness Janes-Adler Richness Class short nullable ref_distance Reference for Distance short nullable lii Galactic Longitude degree pos.galactic.lon double nullable seq_num Number Inside Sequence short nullable sb_spect_code Strasbourg-Bochum Spectral Class int nullable prec_dec Precession, 10 yrs, dec, in minutes of time arcmin/10_y float nullable neg_lii_tracer Tracer, -longitude short nullable iau_num IAU Number char nullable jdl_distance_weight JDL Distance Weight Class short nullable ly_tr_nebulosity Trumpler Nebulosity, 82 Data char nullable bii Galactic Latitude degree pos.galactic.lat double nullable ja_bv_turnoff Janes-Adler B-V Turn Off float nullable ref_angular_diameter Reference for Angular Diameter short nullable radvel_weight_class Weight Class for Radial Velocity short nullable ly_angular_diameter Angular Diameter, 82 Data double nullable ref_radvel2 Reference for Radial Velocity short nullable lund_record_num Record Number on Lund disc, 1st is 0 short nullable neg_ra_tracer Tracer, -RA, 1950 short nullable ref_log_age Reference for Age short nullable ocl_num OCL number short nullable sk_total_mag B. Skiff Total Magnitude float nullable ly_member_stars Number of Member Stars, 82 Data short nullable ref_jdl2 JDL Reference 2 short nullable radvel Radial Velocity (520), km/s km/s short nullable ja_max_class Janes-Adler Maximum Class short nullable ref_radvel5 Reference for Radial Velocity short nullable ja_e_bv Janes-Adler E(B-V) float nullable jdl_reddening JDL Reddening double nullable ref_radvel3 Reference for Radial Velocity short nullable pos_lii_tracer Tracer, +longitude short nullable jdl_reddening_weight JDL Reddening Weight Class short nullable tr_nebulosity Trumpler Nebulosity (n/u/e=1/2/3) char nullable ref_jdl1 JDL Reference 1 short nullable ref_e_bv Reference for Reddening char nullable ly_tr_range_class Trumpler Range Class, 82 Data short nullable sb_total_mag Strasbourg-Bochum Total Magnitude float nullable ref_metallicity Reference for Metallicity short nullable ly_refs_flag Flag [1] Indicates Classified in Refs short nullable