{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-08T00:04:10.974Z","years_from_j2000":26.684,"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":"toi-4773-b","name":"TOI-4773 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1607.5856470005021,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":114.9426489,"dec_deg":-21.4856184,"epoch_ra_deg":115.23313,"epoch_dec_deg":-21.546956,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-4773","semi_major_axis_km":4811067.521712,"periapsis_km":null,"mass_kg":1.0079041624708186e+28,"mass_msun":0.0050689,"constellation":"Puppis","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-4773-b","radius_km":97086.135728199,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-4773","host_v_mag":12.075,"eccentricity":0.024,"uncertainties":{"mass_kg":[6.45362363917285e+26,6.643436099148523e+26],"radius_km":[3431.6159675669996,3503.107962905],"distance_ly":[24.820500344244174,25.59675252321002],"eccentricity":[0.017,0.027],"host_mass_solar":[0.075,0.082],"inclination_deg":[0.56,0.61],"host_radius_solar":[0.046,0.046],"host_temperature_k":[200,250],"semi_major_axis_km":[83774.80759199998,89758.72241999999],"orbital_period_days":[0.0000014,0.0000014],"argument_of_periastron_deg":[100,87]},"host_mass_solar":1.452,"inclination_deg":78.64,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.55,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":6740,"orbital_period_days":1.7452851,"transit_midpoint_bjd":2459673.53995,"equilibrium_temperature_k":2255,"argument_of_periastron_deg":-113},"designations":[{"catalog":"Exoplanet","designation":"TOI-4773 b"},{"catalog":"Host star","designation":"TOI-4773"}],"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."}