Ritter Binaries Related to CVs Catalog (7.21 Edition) Ritter/Bin ivo://nasa.heasarc/ritterrbin NASA/GSFC HEASARC Ritter, Kolb 2026-04-03 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Star This HEASARC database table contains information on the so-called &quot;Related Objects&quot; 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 &amp; 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 (RITTERRBIN) containing the related binaries&#39; data, a second one (&lt;a href="/W3Browse/star-catalog/rittercv.html"&gt;RITTERCV&lt;/a&gt;) containing cataclysmic binaries&#39; data, and a third one (&lt;a href="/W3Browse/star-catalog/ritterlmxb.html"&gt;RITTERLMXB&lt;/a&gt;) containing the low-mass X-ray binaries&#39; data. The literature published before 1 January 2014 has, as far as possible, been taken into account. Related objects are detached binaries consisting of either a white dwarf or a white dwarf precursor primary and of a low-mass secondary. The secondary may also be a highly evolved star. This table was last updated by the HEASARC in April 2014 based on the pcbdata.dat file from the &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/B/cb"&gt;CDS Catalog B/cb&lt;/a&gt;. This is a service provided by NASA HEASARC . 2003A&amp;A...404..301R https://heasarc.gsfc.nasa.gov/W3Browse/all/ritterrbin.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=ritterrbin& GET text/xml 180 99999 true 10.6175 -73.34861111 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=ritterrbin GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_ritterrbin&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.0833333333333333 Optical public ritterrbin Ritter Binaries Related to CVs Catalog (7.21 Edition) type4 Object Type 4 src.class char nullable spect_type_1 Spectral Type of the Primary src.spType char nullable r2_flag Uncertainty Flag [:] for Secondary Radius R2 meta.code.error;phys.size.radius char nullable name Object Designation meta.id;meta.main char nullable mag2_flag Flag Indicates Uncertainty or Band for Mag2 [:BgRiI] meta.code;phot.mag;em.opt.V char nullable lii Galactic Longitude degree pos.galactic.lon double nullable eccentricity_error Error of Orbital Eccentricity stat.error;src.orbital.eccentricity double nullable lim_m1 Limit Flag for Primary Mass M1 meta.code;phys.mass char nullable lim_eccentricity Limit Flag for the Orbital Eccentricity meta.code;src.orbital.eccentricity char nullable type2 Object Type 2 src.class char nullable mass_ratio_error Error of Mass Ratio stat.error;phys.mass;arith.ratio double nullable mag1 Apparent V (or B, b, p, g, K, I) Magnitude at Maximum Brightness mag phot.mag;em.opt.V double nullable eclipse Flags Indicate Occurrence of Eclipses [12][?] meta.code char nullable "__row" System index column char nullable m1_error Error of Primary Mass M1 (Solar masses) Solar_Mass stat.error;phys.mass double nullable lim_mag2 Limit Flag for Mag2 meta.code;phot.mag;em.opt.V char nullable lim_inclination Limit Flag [<>~] for the Orbital Inclination meta.code;src.orbital.inclination char nullable spect_type_2 Spectral Type of the Secondary src.spType char nullable lim_m2 Limit Flag for Secondary Mass M2 meta.code;phys.mass char nullable type3 Object Type 3 src.class char nullable m2_flag Uncertainty Flag for Secondary Mass M2 meta.code.error;phys.mass char nullable mass_ratio_flag Uncertainty Flag for Mass Ratio meta.code;phys.mass;arith.ratio char nullable lim_r2 Limit Flag on Secondary Radius R2 meta.code;phys.size.radius char nullable alt_name Common Alternative Name meta.id char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable m2 Secondary Mass M2 (Solar masses) Solar_Mass phys.mass double nullable r2_error Error of Secondary Radius (Solar radii) Solar_Radius stat.error;phys.size.radius double nullable m1 Primary Mass M1 (Solar masses) Solar_Mass phys.mass double nullable sb Flag Specifying the Type of Spectroscopic Binary [12] src.class;spect short nullable m1_flag Uncertainty Flag for Primary Mass M1 meta.code.error;phys.mass char nullable dec Declination degree pos.eq.dec;meta.main double nullable type2_flag Uncertainty Flag for Object Type 2 meta.code.error;src.class char nullable mag2 Apparent V (or B or I) Magnitude at Minimum Brightness or Mid-Eclipse mag phot.mag;em.opt.V double nullable r1_error Error of Primary Radius R1 (Solar radii) Solar_Radius stat.error;phys.size.radius double nullable acc_pos Position Accuracy (arcsec) or Flag [P] Indicating Large Proper Motion arcsec stat.error;pos char nullable type3_flag Uncertainty Flag for Object Type 3 meta.code.error;src.class char nullable inclination Orbital Inclination (degrees) degree src.orbital.inclination double nullable eccentricity Orbital Eccentricity src.orbital.eccentricity double nullable eccentricity_flag Uncertainty Flag for Orbital Eccentricity meta.code.error;src.orbital.eccentricity char nullable inclination_flag Uncertainty Flag for the Inclination meta.code.error;src.orbital.inclination char nullable type1 Object Type 1 src.class char nullable r1 Primary Radius R1 (Solar radii) Solar_Radius phys.size.radius double nullable lim_mass_ratio Limit Flag for Mass Ratio meta.code;phys.mass char nullable "__x_ra_dec" System unit vector column double nullable inclination_error Error of Orbital Inclination (degrees) degree stat.error;src.orbital.inclination double nullable r1_flag Uncertainty Flag [:] for Primary Radius R1 meta.code.error;phys.size.radius char nullable lim_r1 Limit Flag for Primary Radius R1 meta.code;phys.size.radius char nullable mag1_flag Flag Indicates Band for Mag1 [BbpgVRriIK] or Uncertainty [:] meta.code;phot.mag;em.opt.V char nullable m2_error Error of Secondary Mass M2 (Solar masses) Solar_Mass stat.error;phys.mass double nullable type1_flag Uncertainty Flag for Object Type 1 meta.code.error;src.class char nullable "__y_ra_dec" System unit vector column double nullable orbital_period_flag Uncertainty Flag for Orbital Period meta.code.error;time.period char nullable r2 Secondary Radius R2 (Solar radii) Solar_Radius phys.size.radius double nullable "__z_ra_dec" System unit vector column double nullable mass_ratio Primary/Secondary Mass Ratio (M1/M2) phys.mass;arith.ratio double nullable spin_period Spin Period of the Accretor (White Dwarf or Neutron Star) s time.period double nullable bii Galactic Latitude degree pos.galactic.lat double nullable orbital_period Orbital Period (d) d time.period double nullable