{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.671","julian_year":2026.671,"time":"2026-09-03T02:53:10.332Z","years_from_j2000":26.671,"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-1024-b","name":"Kepler-1024 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":3546.6244512918684,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":291.9510277,"dec_deg":38.2516419,"epoch_ra_deg":292.185058,"epoch_dec_deg":38.305673,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-1024","semi_major_axis_km":45373034.18331,"periapsis_km":null,"mass_kg":8.6596434082975e+25,"mass_msun":0.0000435506,"constellation":"Lyra","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/kepler-1024-b","radius_km":24938.371000000003,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-1024","host_v_mag":16.272,"eccentricity":0,"uncertainties":{"radius_km":[1658.306,1722.0870000000002],"distance_ly":[164.57850819586872,164.57850819586872],"host_mass_solar":[0.05,0.042],"host_radius_solar":[0.05,0.045],"host_temperature_k":[76.37,126.73],"orbital_period_days":[0.0003538,0.0003538]},"host_mass_solar":0.81,"inclination_deg":89.7,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.78,"planets_in_system":1,"discovery_facility":"Kepler","host_temperature_k":5143,"orbital_period_days":66.4162133,"transit_midpoint_bjd":2455021.13427,"equilibrium_temperature_k":376},"designations":[{"catalog":"Exoplanet","designation":"Kepler-1024 b"},{"catalog":"Host star","designation":"Kepler-1024"}],"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."}