{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.663","julian_year":2026.663,"time":"2026-08-31T05:38:10.376Z","years_from_j2000":26.663,"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-265-e","name":"Kepler-265 e","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":4175.617025718608,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":290.5104788,"dec_deg":41.244743,"epoch_ra_deg":290.730969,"epoch_dec_deg":41.295201,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-265","semi_major_axis_km":47721720.753299996,"periapsis_km":null,"mass_kg":4.311905200545376e+25,"mass_msun":0.0000216852,"constellation":"Lyra","discovered":"2014","featured":false,"url":"https://spacecatalog.org/object/kepler-265-e","radius_km":16519.279,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-265","host_v_mag":15.47,"eccentricity":0,"uncertainties":{"radius_km":[3507.9550000000004,3507.9550000000004],"distance_ly":[145.5309757372109,156.2289049263201],"host_mass_solar":[0.034,0.029],"host_radius_solar":[0.228,0.228],"host_temperature_k":[118,118],"orbital_period_days":[0.001396,0.001396]},"host_mass_solar":0.97,"inclination_deg":89.98,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.103,"planets_in_system":4,"discovery_facility":"Kepler","host_temperature_k":5835,"orbital_period_days":67.831024,"transit_midpoint_bjd":2454958.89695,"equilibrium_temperature_k":476},"designations":[{"catalog":"Exoplanet","designation":"Kepler-265 e"},{"catalog":"Host star","designation":"Kepler-265"}],"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."}