FBSBSOCAT ivo://nasa.heasarc/fbsbsocat NASA/GSFC HEASARC Mickaelian 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source Eleven lists of blue stellar objects (BSOs) found in the First Byurakan Survey (FBS) low-dispersion spectroscopic plates were published in the journal Astrophysics in the period 1990-1996, The selection was carried out in the region with declinations +33 deg. < delta < +45 deg. and delta > +61 degrees with a surface area of 4000 square degrees. As a result, the present catalog of the FBS blue stellar objects (BSOs) has been compiled. Its preliminary version has been available at CDS since 1999. The author has revised and updated the FBS BSOs catalog with the new data from recently published optical and multi-wavelength catalogs to give access to all available data and make further comparative studies of the properties of these objects possible. The author has made cross-correlations of the FBS BSOs catalog with the MAPS , USNO-B1.0, SDSS, and 2MASS catalogs, as well as with ROSAT, IRAS, NVSS, and FIRST catalogs , added updated SIMBAD and NED data for the objects, and provided accurate DSS1 and DSS2 positions and revised photometry. The author also checked the objects for proper motion and variability. A refined classification for the low-dispersion spectra in the Digitized First Byurakan Survey (DFBS) was carried out. The revised and updated catalog of 1103 FBS blue stellar objects is presented here. (The catalog in fact contains 1101 objects, as 2 pairs of objects turned to be identical; however, the author has kept all objects in the list on order to allow users to enter and find objects by all accepted FBS names). The FBS blue stellar objects catalog can be used to study a complete sample of white dwarfs, hot sub-dwarfs, horizontal-branch B (HBB) stars, cataclysmic variables, bright AGN, and to investigate individual interesting objects. This table was created by the HEASARC in October 2008 based on the CDS table III/258 file fbs.dat. This latter catalog supersedes the previous edition (Abrahamian et al. 1999, <a href="https://cdsarc.cds.unistra.fr/ftp/cats/II/223">CDS Cat. II/223</a>) This is a service provided by NASA HEASARC . 2008AJ....136..946M https://heasarc.gsfc.nasa.gov/W3Browse/all/fbsbsocat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=fbsbsocat& GET text/xml 180 99999 true 231.029875 32.96336111 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=fbsbsocat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_fbsbsocat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 GENERAL CATALOG 0.0166666666666667 Optical public fbsbsocat First Byurakan Survey Blue Stellar Objects Catalog source_number Sequential Identification Number for Each Source in Catalog meta.id;src short nullable name FBS Blue Stellar Object Designation Based on B1950 Position (FBS HHMM+DDd) 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 bmag Summarizing MAPS/USNO-B1.0 Blue Magnitude mag phot.mag;em.opt.B double nullable source_type Type of Object src.class char nullable detailed_source_type Spectral Subtype src.spType char nullable flux_12um IRAS FSC/PSC Fluxes at 12 mum (Jy) Jy phot.flux.density;em.IR.8-15um double nullable jmag 2MASS J Magnitude mag phot.mag;em.IR.J double nullable dss_notes Comments on Peculiarities in DSS1/DSS2 Images meta.note char nullable xray_name X-Ray Associations meta.id.assoc char nullable br_color Summarizing MAPS/USNO-B1.0 B-R Color mag phot.color;em.opt.B;em.opt.R double nullable r2_mag USNO-B1.0 R2 (POSS2 Epoch) Red Magnitude mag phot.mag;em.opt.R double nullable alt_name Alternative Source Designation meta.id char nullable fbs_type FBS Low-Dispersion Spectral Type src.spType char nullable sdss_rmag SDSS Model Magnitude "r" mag phot.mag;em.opt.R double nullable radio_names Radio Associations meta.id.assoc char nullable b2_mag USNO-B1.0 B2 (POSS2 Epoch) Blue Magnitude mag phot.mag;em.opt.B double nullable sdss_gmag SDSS Model Magnitude "g" mag phot.mag;em.opt.B double nullable flux_25um IRAS FSC/PSC Fluxes at 25 mum (Jy) Jy phot.flux.density;em.IR.15-30um double nullable fbs_zone Central Declination of the FBS Zone meta.id;obs.field short nullable b1_mag USNO-B1.0 B1 (POSS1 Epoch) Blue Magnitude mag phot.mag;em.opt.B double nullable fbs_bmag FBS Blue Magnitude (B) As Given in FBS Lists mag phot.mag;em.opt.B double nullable kmag 2MASS K Magnitude mag phot.mag;em.IR.K double nullable rmag Summarizing MAPS/USNO-B1.0 Red Magnitude mag phot.mag;em.opt.R double nullable flux_100um IRAS FSC/PSC fluxes at 100 mum (Jy) Jy phot.flux.density;em.IR.60-100um double nullable pm_dec Proper Motion in Declination (mas/yr) mas/yr pos.pm;pos.eq.dec short nullable other_names Other Designations from SIMBAD, NED, PG, etc. meta.id char nullable fbs_list Original Paper Number (FBS lists) meta.ref short nullable imag USNO-B1.0 I (POSS2 Epoch) Infrared Magnitude mag phot.mag;em.opt.I double nullable extent_type Flag [s/g] Indicates Star/Galaxy DSS1+2 Image Extension Type src.class.starGalaxy char nullable dss1_ra DSS1 Right Ascension (J2000 Sexagesimal) pos.eq.ra char nullable infrared_names Infrared Associations meta.id.assoc char nullable pm_ra Proper Motion in Right Ascension (mas/yr) mas/yr pos.pm;pos.eq.ra short nullable sdss_umag SDSS Model Magnitude "u" mag phot.mag;em.opt.U double nullable r1_mag USNO-B1.0 R1 (POSS1 Epoch) Red Magnitude mag phot.mag;em.opt.R double nullable source_notes Comments on Object Names meta.note char nullable dss1_dec DSS1 Declination (J2000 Sexagesimal) pos.eq.dec char nullable redshift Redshift (for Extragalactic Objects) src.redshift double nullable var_flag Flag Indicates Variability meta.code;src.var char nullable rosat_count_rate X-Ray Count Rate from ROSAT Catalogs ct/s phot.count;em.X-ray.soft double nullable hmag 2MASS H Magnitude mag phot.mag;em.IR.H double nullable pm_tot Total Proper Motion Value (mas/yr) mas/yr pos.pm double nullable flux_60um IRAS FSC/PSC fluxes at 60 mum (Jy) Jy phot.flux.density;em.IR.30-60um double nullable pm_dir Total Proper Motion Position Angle (degree) degree pos.pm;pos.posAng short nullable bii Galactic Latitude degree pos.galactic.lat double nullable class Browse Object Classification src.class short nullable sdss_zmag SDSS Model Magnitude "z" mag phot.mag;em.opt.I double nullable lii Galactic Longitude degree pos.galactic.lon double nullable maps_emag MAPS E Magnitudes Corresponding to "typ" mag phot.mag;em.opt double nullable flux_20_cm 21-cm INTEGRAL Flux from NVSS or FIRST Catalog (mJy) mJy phot.flux.density;em.radio.750-1500MHz double nullable maps_omag MAPS O Magnitudes Corresponding to "typ" mag phot.mag;em.opt double nullable sdss_imag SDSS Model Magnitude "i" mag phot.mag;em.opt.I double 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