{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T19:15:25.026Z","years_from_j2000":26.67,"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":"kepler-462-b","name":"Kepler-462 b","class":"neptune_like_planet","category":"exoplanet","object_type":"Neptune-like planet","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1945.9304885525205,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":299.8211502,"dec_deg":43.8142793,"epoch_ra_deg":300.039622,"epoch_dec_deg":43.886866,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-462","semi_major_axis_km":62412231.65604,"periapsis_km":null,"mass_kg":3.2189984807395536e+26,"mass_msun":0.000161888,"constellation":"Cygnus","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/kepler-462-b","radius_km":19134.300000000003,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-462","host_v_mag":11.632,"eccentricity":0.042,"uncertainties":{"mass_kg":[1.4213759525343483e+26,6.246887589709782e+26],"radius_km":[637.8100000000001,1275.6200000000001],"distance_ly":[34.19423463982338,35.414059492484],"eccentricity":[0.008,0.046],"host_mass_solar":[0.08,0.08],"inclination_deg":[0.05,0.05],"host_radius_solar":[0.06,0.08],"host_temperature_k":[300,300],"orbital_period_days":[0.001,0.0007],"argument_of_periastron_deg":[11.3,7.1]},"host_mass_solar":1.59,"inclination_deg":89.34,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.57,"planets_in_system":2,"discovery_facility":"Kepler","host_temperature_k":7500,"orbital_period_days":84.6866,"transit_midpoint_bjd":2454983.57283,"equilibrium_temperature_k":611,"argument_of_periastron_deg":51.9},"designations":[{"catalog":"Exoplanet","designation":"Kepler-462 b"},{"catalog":"Host star","designation":"Kepler-462"}],"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":"2026-09-02T18:38:07.546Z","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."}