{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.673","julian_year":2026.673,"time":"2026-09-03T17:27:55.780Z","years_from_j2000":26.673,"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":"corot-29-b","name":"CoRoT-29 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":2630.4740172319757,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":278.9020691,"dec_deg":6.4795703,"epoch_ra_deg":279.229294,"epoch_dec_deg":6.50086,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"CoRoT-29","semi_major_axis_km":5774477.80902,"periapsis_km":null,"mass_kg":1.613413996407114e+27,"mass_msun":0.000811409,"constellation":"Ophiuchus","discovered":"2015","featured":false,"url":"https://spacecatalog.org/object/corot-29-b","radius_km":64342.910610000006,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"CoRoT-29","host_v_mag":15.408,"eccentricity":0.082,"uncertainties":{"mass_kg":[3.7962682268402685e+26,3.7962682268402685e+26],"radius_km":[11438.739664,11438.739664],"distance_ly":[129.67977578017718,143.59686841735063],"eccentricity":[0.081,0.081],"host_mass_solar":[0.14,0.14],"inclination_deg":[2.7,2.7],"host_radius_solar":[0.12,0.12],"host_temperature_k":[100,100],"semi_major_axis_km":[882627.4371299999,882627.4371299999],"orbital_period_days":[0.000006,0.000006],"argument_of_periastron_deg":[49,210]},"host_mass_solar":0.97,"inclination_deg":87.3,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.9,"planets_in_system":1,"discovery_facility":"CoRoT","host_spectral_type":"K0 V","host_temperature_k":5260,"orbital_period_days":2.85057,"transit_midpoint_bjd":2455753.115,"equilibrium_temperature_k":1224.75,"argument_of_periastron_deg":87},"designations":[{"catalog":"Exoplanet","designation":"CoRoT-29 b"},{"catalog":"Host star","designation":"CoRoT-29"}],"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."}