{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.669","julian_year":2026.669,"time":"2026-09-02T11:37:34.752Z","years_from_j2000":26.669,"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-2-b","name":"CoRoT-2 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":695.6361070856018,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":291.7770457,"dec_deg":1.3836634,"epoch_ra_deg":292.117621,"epoch_dec_deg":1.437391,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"CoRoT-2","semi_major_axis_km":4185748.422186,"periapsis_km":null,"mass_kg":6.586226167957689e+27,"mass_msun":0.00331231,"constellation":"Aquila","discovered":"2008","featured":false,"url":"https://spacecatalog.org/object/corot-2-b","radius_km":104804.9392,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"CoRoT-2","host_v_mag":12.516,"eccentricity":0.0143,"uncertainties":{"mass_kg":[4.175739773159732e+26,4.175739773159732e+26],"radius_km":[3144.4033,3004.0851],"distance_ly":[7.925599978516866,8.104985986261074],"eccentricity":[0.0076,0.0077],"host_mass_solar":[0.08,0.08],"inclination_deg":[0.16,0.18],"host_radius_solar":[0.027,0.026],"host_temperature_k":[120,120],"semi_major_axis_km":[119678.29656,113694.381732],"orbital_period_days":[0.000001,0.000001],"argument_of_periastron_deg":[5,17]},"host_mass_solar":0.96,"inclination_deg":88.08,"stars_in_system":2,"discovery_method":"Transit","host_radius_solar":0.906,"planets_in_system":1,"discovery_facility":"CoRoT","host_temperature_k":5625,"orbital_period_days":1.7429935,"periastron_epoch_bjd":2454237.53562,"transit_midpoint_bjd":2454237.53556,"equilibrium_temperature_k":1521,"argument_of_periastron_deg":102},"designations":[{"catalog":"Exoplanet","designation":"CoRoT-2 b"},{"catalog":"Host star","designation":"CoRoT-2"}],"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":"2026-09-01T22:58:55.274Z","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."}