{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.687","julian_year":2026.687,"time":"2026-09-08T20:10:33.709Z","years_from_j2000":26.687,"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-6330-b","name":"TOI-6330 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":453.4943507049144,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":22.1679816,"dec_deg":53.6860778,"epoch_ra_deg":22.587055,"epoch_dec_deg":53.825296,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-6330","semi_major_axis_km":8621325.288440999,"periapsis_km":null,"mass_kg":1.8985521651708795e+28,"mass_msun":0.00954809,"constellation":"Cassiopeia","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-6330-b","radius_km":69457.509,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-6330","host_v_mag":16.33,"eccentricity":0.34,"uncertainties":{"mass_kg":[5.972167867791379e+26,5.972167867791379e+26],"radius_km":[2232.335,2359.897],"distance_ly":[3.6790439406448656,3.741013652411047],"eccentricity":[0.01,0.01],"host_mass_solar":[0.021,0.021],"inclination_deg":[0.16,0.16],"host_radius_solar":[0.011,0.011],"host_temperature_k":[59,59],"semi_major_axis_km":[115190.36043899998,109206.44561099999],"orbital_period_days":[0.0000033,0.0000033],"argument_of_periastron_deg":[2,2]},"host_mass_solar":0.531,"inclination_deg":88.41,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.49,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":3539,"orbital_period_days":6.8500246,"transit_midpoint_bjd":2459901.36114,"equilibrium_temperature_k":495,"argument_of_periastron_deg":37},"designations":[{"catalog":"Exoplanet","designation":"TOI-6330 b"},{"catalog":"Host star","designation":"TOI-6330"}],"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."}