{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.682","julian_year":2026.682,"time":"2026-09-07T05:26:39.117Z","years_from_j2000":26.682,"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-62-f","name":"Kepler-62 f","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":981.3197398914747,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":283.2125621,"dec_deg":45.3496992,"epoch_ra_deg":283.408842,"epoch_dec_deg":45.381899,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-62","semi_major_axis_km":107411271.16259998,"periapsis_km":null,"mass_kg":2.0902587537269826e+26,"mass_msun":0.000105122,"constellation":"Lyra","discovered":"2013","featured":false,"url":"https://spacecatalog.org/object/kepler-62-f","radius_km":8993.121,"radius_kind":null,"data_quality":"The published mass and radius imply a density no material has. One of the two is likely an upper limit rather than a measurement.","description":null,"properties":{"host_star":"Kepler-62","host_v_mag":13.965,"eccentricity":0,"uncertainties":{"radius_km":[446.46700000000004,446.46700000000004],"distance_ly":[3.9758462443671023,3.9758462443671023],"host_mass_solar":[0.02,0.02],"inclination_deg":[0.03,0.03],"host_radius_solar":[0.02,0.02],"host_temperature_k":[70,70],"semi_major_axis_km":[1047185.0948999999,1047185.0948999999],"orbital_period_days":[0.005,0.005]},"host_mass_solar":0.69,"inclination_deg":89.9,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.64,"planets_in_system":5,"discovery_facility":"Kepler","host_spectral_type":"K2 V","host_temperature_k":4925,"orbital_period_days":267.291,"transit_midpoint_bjd":2455422.71,"equilibrium_temperature_k":208},"designations":[{"catalog":"Exoplanet","designation":"Kepler-62 f"}],"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."}