AAVSOVSX ivo://nasa.heasarc/aavsovsx NASA/GSFC HEASARC Watson et al. 2026-07-17 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This database table contains Galactic stars known or suspected to be variable. It lists all stars that have an entry in the American Association of Variable Star Observers' (AAVSO) International Variable Star Index (VSX; <a href="http://www.aavso.org/vsx">http://www.aavso.org/vsx</a>). It consisted initially of the General Catalogue of Variable Stars (GCVS) and the New Catalogue of Suspected Variables (NSV) and was then supplemented with a large number of variable star catalogues, as well as individual variable star discoveries or variables found in the literature. Effort has also been invested to update the entries with the latest information regarding position, type and period and to remove duplicates. The VSX database is being continually updated and maintained. For historical reasons some objects outside of the Galaxy have been included. This table was created by the HEASARC based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/B/vsx">CDS catalog B/vsx</a>. The CDS updates it regularly, and this HEASARC version is accordingly updated within a week of such updates. This is a service provided by NASA HEASARC . 2015yCat....102027W https://heasarc.gsfc.nasa.gov/W3Browse/all/aavsovsx.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=aavsovsx& GET text/xml 180 99999 true 292.34671 18.14949 0.0333333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=aavsovsx GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_aavsovsx&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.0333333333333333 Optical public aavsovsx AAVSO International Variable Star Index name Variable Star Identifier 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 variability_type Variability Type, as in GCVS Catalog meta.code;src.var char nullable max_mag_limit Limit Flag for Max_Mag meta.code;phot.mag;stat.max char nullable max_mag Magnitude at Maximum, or Amplitude mag phot.mag;stat.max double nullable max_mag_flag Uncertainty Flag for Max_Mag meta.code.error;phot.mag;stat.max char nullable max_mag_system Passband for Max_Mag meta.code;instr.filter char nullable period_limit Limit Flag for Period meta.code;time.period char nullable period Period of the Variable in Days d time.period double nullable period_flag Uncertainty Flag for Period meta.code.error;time.period char nullable spect_type Spectral Type src.spType char nullable ref_bibcode_1 Reference of a Paper Dealing with the Object meta.bib.bibcode char nullable ref_bibcode_2 Reference of a Paper Dealing with the Object meta.bib.bibcode char nullable class Browse Object Classification src.class short nullable bii Galactic Latitude degree pos.galactic.lat double nullable epoch Epoch of Maximum or Minimum (HJD) HJD time.epoch double nullable ref_bibcode_others Additional Reference(s) of Paper(s) Dealing with the Object meta.bib.bibcode char nullable min_mag_type Flag [(] Indicates Min_Mag Is an Amplitude meta.code;phot.mag;stat.min char nullable variability_flag Variability Flag [0,3] meta.note;src.var short nullable min_mag Magnitude at Minimum, or Amplitude mag phot.mag;stat.min double nullable min_mag_flag Uncertainty Flag for Min_Mag meta.code.error;phot.mag;stat.min char nullable lii Galactic Longitude degree pos.galactic.lon double nullable epoch_flag Uncertainty Flag for Epoch meta.code.error;time.epoch char nullable source_number Sequential Identification Number for Each Source in Catalog meta.id;src int nullable max_mag_type Flag [(] Indicates Max_Mag Is an Amplitude meta.code;phot.mag;stat.max char nullable min_mag_limit Limit Flag for Min_Mag meta.code;phot.mag;stat.min char nullable min_mag_system Passband for Min_Mag meta.code;instr.filter char 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