{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-01T22:09:45.969Z","years_from_j2000":26.668,"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-35-b","name":"Kepler-35 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":5933.338976509682,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":294.496955,"dec_deg":46.6896733,"epoch_ra_deg":294.69561,"epoch_dec_deg":46.749783,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-35","semi_major_axis_km":90277827.03132899,"periapsis_km":null,"mass_kg":2.4105461164766343e+26,"mass_msun":0.00012123,"constellation":"Cygnus","discovered":"2011","featured":false,"url":"https://spacecatalog.org/object/kepler-35-b","radius_km":52045.296,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-35","host_v_mag":15.863,"eccentricity":0.042,"uncertainties":{"mass_kg":[3.7959098967682008e+25,3.7959098967682008e+25],"radius_km":[1001.3617,1001.3617],"distance_ly":[349.0851710702305,394.51875448617284],"eccentricity":[0.004,0.007],"host_mass_solar":[0.0053,0.0051],"inclination_deg":[0.09,0.12],"host_radius_solar":[0.0019,0.002],"host_temperature_k":[150,150],"semi_major_axis_km":[154085.806821,151093.849407],"orbital_period_days":[0.105,0.077]},"host_mass_solar":0.8877,"inclination_deg":90.76,"stars_in_system":2,"discovery_method":"Transit","host_radius_solar":1.0284,"planets_in_system":1,"discovery_facility":"Kepler","host_temperature_k":5606,"orbital_period_days":131.458,"transit_midpoint_bjd":2454965.85,"equilibrium_temperature_k":352.89},"designations":[{"catalog":"Exoplanet","designation":"Kepler-35 b"},{"catalog":"Host star","designation":"Kepler-35"}],"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."}