Ritter/CV ivo://nasa.heasarc/rittercv NASA/GSFC HEASARC Ritter, Kolb 2026-10-02 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov CV Star This HEASARC database table contains information on cataclysmic binaries only, as taken from the Catalog of Cataclysmic Binaries, Low-Mass X-ray Binaries, and Related Objects (7th Edition, Release 7.21, March 2014) of Ritter & Kolb. The complete catalog lists coordinates, apparent magnitudes, orbital parameters, stellar parameters of the components, and other characteristic properties of 1166 cataclysmic binaries, 105 low-mass X-ray binaries, and 500 related objects with known or suspected orbital periods. The HEASARC has for simplicity split this catalog into three Browse database tables, one for each class of objects: the present table (RITTERCV) containing the cataclysmic binaries' data, a second one (<a href="/W3Browse/star-catalog/ritterlmxb.html">RITTERLMXB</a>) containing the low-mass X-ray binaries' data, and a third one (<a href="/W3Browse/star-catalog/ritterrbin.html">RITTERRBIN</a>) containing the related binaries' data. The literature published before 1 January 2014 has, as far as possible, been taken into account. Cataclysmic binaries are semi-detached binaries consisting of a white dwarf (or a white dwarf precursor) primary and a low-mass secondary which is filling its critical Roche lobe. The secondary is not necessarily unevolved, it may even be a highly evolved star, as, for example, in the case of the AM CVn-type stars. This table was last updated by the HEASARC in April 2014 based on the cbdata.dat file from the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/B/cb">CDS Catalog B/cb</a>. This is a service provided by NASA HEASARC . 2003A&A...404..301R https://heasarc.gsfc.nasa.gov/W3Browse/all/rittercv.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=rittercv& GET text/xml 180 99999 true 280.21916667 -83.71944444 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=rittercv GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_rittercv&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.0833333333333333 Optical public rittercv Ritter Cataclysmic Binaries Catalog (7.21 Edition) name Object 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 lim_mag1 Limit Flag for Mag1 char nullable mag1 Apparent V (or B, b, g, R, i, I, J, K, p, r, w) Magnitude at Maximum Brightness mag double nullable type1 Object Type 1 char nullable type1_flag Uncertainty Flag for Object Type 1 char nullable type2 Object Type 2 char nullable type2_flag Uncertainty Flag for Object Type 2 char nullable orbital_period Orbital Period (d) d double nullable orbital_period_flag Uncertainty Flag for Orbital Period 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 mag4 Apparent V (or B, R, p, etc.) Magnitude in Superoutburst mag double nullable lim_mag4 Limit Flag for Mag4 char nullable eclipse Flags Indicates Occurrence of Eclipses [D21] and Uncertainty [?:] char nullable inclination_flag Uncertainty Flag for the Inclination char nullable alt_name Common Alternative Name meta.id char nullable mass_ratio Primary/Secondary Mass Ratio (M1/M2) double nullable type4 Object Type 4 char nullable lim_m1 Limit Flag for Primary Mass M1 char nullable mag2_flag Flag Indicates Uncertainty or Band for Mag2 [:?BbgRriIKpw] char nullable lim_inclination Limit Flag for the Orbital Inclination char nullable acc_pos Position Accuracy (arcsec) arcsec char nullable spect_type_1 Spectral Type of the Primary char nullable inclination Orbital Inclination (degrees) degree double nullable interval2 Time Interval Between Two Subsequent Superoutbursts d char nullable spect_type_2 Spectral Type of the Secondary char nullable sb Flags Specifying Type of Spectroscopic Binary [12] and Uncertainty [:] char nullable mag3_flag Flag Indicates Uncertainty or Band for Mag3 [:?BbgpRrIw] char nullable period3 Additional Period in the System (s) s double nullable m1 Primary Mass M1 (Solar masses) Solar_Mass double nullable "interval" Time Interval Between Two Subsequent Outbursts d char nullable period3_flag Flag for Period 3 [:TQ] char nullable mass_ratio_error Error of Mass Ratio double nullable lim_mass_ratio Limit Flag for Mass Ratio char nullable type3_flag Uncertainty Flag for Object Type 3 char nullable mag4_flag Flag Indicates Uncertainty or Band for Mag4 [:?BgRUIpwr] char nullable period2_flag Uncertainty Flag for Second Period char nullable m1_error Error of Primary Mass M1 (Solar masses) Solar_Mass double nullable type4_flag Uncertainty Flag for Object Type 4 char nullable bii Galactic Latitude degree pos.galactic.lat double nullable inclination_error Error of Orbital Inclination (degrees) degree double nullable period2 Second Period (d) d double nullable lim_mag2 Limit Flag for Mag2 char nullable class Browse Object Classification src.class short nullable m2_error Error of Secondary Mass M2 (Solar masses) Solar_Mass double nullable mag1_flag Flag Indicates Band for Mag1 [BbgRFiIJjKprw] or Uncertainty [:] char nullable m1_flag Uncertainty Flag for Primary Mass M1 char nullable period4 Additional Period in the System (s) s double nullable lii Galactic Longitude degree pos.galactic.lon double nullable m2 Secondary Mass M2 (Solar masses) Solar_Mass double nullable m2_flag Uncertainty flag for Secondary Mass M2 char nullable mag3 Apparent V (or B, g, R, etc.) Magnitude of Outbursts mag double nullable lim_m2 Limit Flag for Secondary Mass M2 char nullable period4_flag Flag Indicates Uncertainty [:] or Transient Pulsations [T] char nullable lim_mag3 Limit Flag for Mag3 char nullable mass_ratio_flag Uncertainty Flag for Mass Ratio char nullable type3 Object Type 3 char nullable mag2 Apparent V (or B, g, R, etc.) Magnitude at Mid-Eclipse mag double nullable