{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.680","julian_year":2026.68,"time":"2026-09-06T07:56:19.229Z","years_from_j2000":26.68,"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-1085-b","name":"Kepler-1085 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":4450.501620858279,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":287.4776359,"dec_deg":46.1411685,"epoch_ra_deg":287.672632,"epoch_dec_deg":46.184143,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-1085","semi_major_axis_km":109746493.92422698,"periapsis_km":null,"mass_kg":2.4605331615300483e+26,"mass_msun":0.000123744,"constellation":"Lyra","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/kepler-1085-b","radius_km":46049.882,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-1085","host_v_mag":15.273,"eccentricity":0,"uncertainties":{"radius_km":[4719.794,11289.237000000001],"distance_ly":[138.51861361630094,147.55314527905472],"host_mass_solar":[0.063,0.088],"host_radius_solar":[0.11,0.309],"host_temperature_k":[89.9,83.83],"semi_major_axis_km":[677678.354271,677678.354271],"orbital_period_days":[0.0008946,0.0008946]},"host_mass_solar":1.11,"inclination_deg":89.9,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.14,"planets_in_system":2,"discovery_facility":"Kepler","host_temperature_k":6000,"orbital_period_days":219.3217528,"transit_midpoint_bjd":2455153.7286,"equilibrium_temperature_k":313},"designations":[{"catalog":"Exoplanet","designation":"Kepler-1085 b"}],"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."}