{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.686","julian_year":2026.686,"time":"2026-09-08T17:09:30.104Z","years_from_j2000":26.686,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued J2000 position is carried along the great circle the object's own published motion puts it on, at a constant velocity, and the result is referred to the true equator and equinox of this instant. Those are separate things: the motion moves the object, and the rotation turns the grid under it by about fifty arcseconds a year, with nutation adding up to another seventeen.","excluded":"Parallax, the radial-velocity perspective term, aberration and refraction; each is below the accuracy of the catalogued positions themselves. An object with no published proper motion comes back where the catalogue has it rather than at a fabricated zero, and says so with a null pm_ra_mas_yr. A body with no fixed position is not propagated at all — its place comes from an ephemeris, which is what /api/v1/visible answers with."},"slug":"hd-207832-c","name":"HD 207832 c","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":192.20101798107743,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":328.1517893,"dec_deg":-26.0271749,"epoch_ra_deg":328.535284,"epoch_dec_deg":-25.90105,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 207832","semi_major_axis_km":315950702.9184,"periapsis_km":null,"mass_kg":1.385637902796698e+27,"mass_msun":0.000696857,"constellation":"Piscis Austrinus","discovered":"2012","featured":false,"url":"https://spacecatalog.org/object/hd-207832-c","radius_km":89293.40000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 207832","host_v_mag":8.78,"eccentricity":0.27,"uncertainties":{"mass_kg":[9.490670567100671e+25,3.416641404156241e+26],"distance_ly":[0.5061946982163859,0.5088039492381198],"eccentricity":[0.1,0.22],"host_mass_solar":[0.1,0.1],"host_radius_solar":[0.056,0.056],"host_temperature_k":[81,81],"semi_major_axis_km":[6731904.181499999,13015014.750899998],"orbital_period_days":[37,71.9],"argument_of_periastron_deg":[76.5,32.4]},"host_mass_solar":0.94,"stars_in_system":3,"discovery_method":"Radial Velocity","host_radius_solar":0.901,"planets_in_system":2,"discovery_facility":"W. M. Keck Observatory","host_spectral_type":"G5 V","host_temperature_k":5710,"orbital_period_days":1155.7,"equilibrium_temperature_k":179.84,"argument_of_periastron_deg":121.6},"designations":[{"catalog":"Exoplanet","designation":"HD 207832 c"},{"catalog":"Host star","designation":"HD 207832"}],"source":{"id":"exoplanet_archive","name":"NASA Exoplanet Archive (Planetary Systems Composite Parameters)","url":"https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars","license":"Public domain (NASA)"},"updated_at":"2026-09-02T19:50:56.720Z","attribution":"Data from SpaceCatalog.org. Individual records carry their source and license in `source`; attribution is required for CC-BY and CC-BY-SA rows."}