{"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":"2026-09-07T06:31:07.027Z","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":"toi-6448-b","name":"TOI-6448 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1261.8305325467597,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":110.1704109,"dec_deg":-33.9223285,"epoch_ra_deg":110.419681,"epoch_dec_deg":-33.972053,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-6448","semi_major_axis_km":19597321.061699998,"periapsis_km":null,"mass_kg":3.2249706486073445e+26,"mass_msun":0.000162188,"constellation":"Puppis","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-6448-b","radius_km":54047.951855921005,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-6448","host_v_mag":12.886,"eccentricity":0.2,"uncertainties":{"radius_km":[4861.456001889,4861.456001889],"distance_ly":[13.261518317962787,13.542012802799187],"eccentricity":[0.12,0.26],"host_mass_solar":[0.05,0.05],"inclination_deg":[0.34,1.96],"host_radius_solar":[0.07,0.07],"host_temperature_k":[90,90],"semi_major_axis_km":[2094370.1897999998,2094370.1897999998],"orbital_period_days":[0.000028,0.000027],"argument_of_periastron_deg":[100,52.1]},"host_mass_solar":1.03,"inclination_deg":88.95,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.897,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":5910,"orbital_period_days":14.844261,"transit_midpoint_bjd":2459214.6136,"equilibrium_temperature_k":745,"argument_of_periastron_deg":143.9},"designations":[{"catalog":"Exoplanet","designation":"TOI-6448 b"},{"catalog":"Host star","designation":"TOI-6448"}],"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."}