{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.664","julian_year":2026.664,"time":"2026-08-31T09:25:44.828Z","years_from_j2000":26.664,"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":"koi-94-e","name":"KOI-94 e","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1555.9355230252788,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":297.3330716,"dec_deg":41.8911186,"epoch_ra_deg":297.556968,"epoch_dec_deg":41.957939,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"KOI-94","semi_major_axis_km":45567511.41521999,"periapsis_km":null,"mass_kg":2.0902587537269826e+26,"mass_msun":0.000105122,"constellation":"Cygnus","discovered":"2013","featured":false,"url":"https://spacecatalog.org/object/koi-94-e","radius_km":41840.336,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"KOI-94","host_v_mag":12.314,"eccentricity":0.019,"uncertainties":{"mass_kg":[1.6722070029815864e+26,1.0749902162024482e+26],"radius_km":[3954.422,3954.422],"distance_ly":[15.97840094434326,16.30781888583717],"eccentricity":[0.23,0.23],"host_mass_solar":[0.05,0.05],"inclination_deg":[0.15,0.15],"host_radius_solar":[0.14,0.14],"host_temperature_k":[58,58],"semi_major_axis_km":[598391.4828,598391.4828],"orbital_period_days":[0.00012,0.00012]},"host_mass_solar":1.277,"inclination_deg":89.76,"stars_in_system":2,"discovery_method":"Transit","host_radius_solar":1.52,"planets_in_system":4,"discovery_facility":"Kepler","host_temperature_k":6182,"orbital_period_days":54.32031,"transit_midpoint_bjd":2454994.2379,"equilibrium_temperature_k":584},"designations":[{"catalog":"Exoplanet","designation":"KOI-94 e"}],"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":"2026-08-30T09:56:50.739Z","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."}