{"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":"2026-09-08T22:44:57.454Z","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-3464-b","name":"TOI-3464 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1949.6780253324857,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":234.4830357,"dec_deg":-44.7899772,"epoch_ra_deg":234.947426,"epoch_dec_deg":-44.878287,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-3464","semi_major_axis_km":7704290.341049999,"periapsis_km":null,"mass_kg":2.372655749695901e+27,"mass_msun":0.00119324,"constellation":"Lupus","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-3464-b","radius_km":87792.17576023,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-3464","host_v_mag":12.731,"uncertainties":{"mass_kg":[4.9351239593674735e+26,5.124936419343146e+26],"radius_km":[3789.076008038,4075.04398939],"distance_ly":[42.76236268244223,44.686685310971015],"host_mass_solar":[0.099,0.095],"inclination_deg":[0.4,0.37],"host_radius_solar":[0.045,0.046],"host_temperature_k":[250,290],"semi_major_axis_km":[194477.23190999997,179517.44483999998],"orbital_period_days":[0.0000061,0.000006]},"host_mass_solar":1.363,"inclination_deg":82.89,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.56,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":6370,"orbital_period_days":3.6515568,"transit_midpoint_bjd":2459703.56516,"eccentricity_upper_limit":0.25,"equilibrium_temperature_k":1693},"designations":[{"catalog":"Exoplanet","designation":"TOI-3464 b"},{"catalog":"Host star","designation":"TOI-3464"}],"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."}