{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.683","julian_year":2026.683,"time":"2026-09-07T14:32:18.740Z","years_from_j2000":26.683,"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-1219-b","name":"Kepler-1219 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":2873.095223487907,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":297.2158443,"dec_deg":47.3785082,"epoch_ra_deg":297.414364,"epoch_dec_deg":47.445103,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-1219","semi_major_axis_km":21162114.789222,"periapsis_km":null,"mass_kg":3.0696942840447687e+25,"mass_msun":0.0000154379,"constellation":"Cygnus","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/kepler-1219-b","radius_km":13521.572000000002,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-1219","host_v_mag":12.339,"eccentricity":0,"uncertainties":{"radius_km":[2870.1450000000004,3571.7360000000003],"distance_ly":[57.97103457537398,60.36502238781487],"host_mass_solar":[0.117,0.142],"host_radius_solar":[0.404,0.504],"host_temperature_k":[81.66,91.26],"semi_major_axis_km":[167549.61518399997,167549.61518399997],"orbital_period_days":[0.00008828,0.00008828]},"host_mass_solar":1.25,"inclination_deg":89.4,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.94,"planets_in_system":1,"discovery_facility":"Kepler","host_temperature_k":5944,"orbital_period_days":16.10467749,"transit_midpoint_bjd":2454968.0157,"equilibrium_temperature_k":1159},"designations":[{"catalog":"Exoplanet","designation":"Kepler-1219 b"},{"catalog":"Host star","designation":"Kepler-1219"}],"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."}