{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.686","julian_year":2026.686,"time":"2026-09-08T17:23:31.279Z","years_from_j2000":26.686,"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-3071-b","name":"TOI-3071 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1582.5727143934052,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":173.2790517,"dec_deg":-56.5033871,"epoch_ra_deg":173.593955,"epoch_dec_deg":-56.651741,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-3071","semi_major_axis_km":3724986.9804299995,"periapsis_km":null,"mass_kg":4.073018485833721e+26,"mass_msun":0.000204838,"constellation":"Centaurus","discovered":"2024","featured":false,"url":"https://spacecatalog.org/object/toi-3071-b","radius_km":45667.196,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-3071","host_v_mag":12.383,"uncertainties":{"mass_kg":[2.090258753726983e+25,2.090258753726983e+25],"radius_km":[3252.831,3635.517],"distance_ly":[28.457143955785863,29.497582800702276],"host_mass_solar":[0.02,0.02],"inclination_deg":[1.1,1.3],"host_radius_solar":[0.04,0.04],"host_temperature_k":[62,62],"semi_major_axis_km":[14959.78707,14959.78707],"orbital_period_days":[0.000002,0.000002]},"host_mass_solar":1.29,"inclination_deg":82.1,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.31,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":6177,"orbital_period_days":1.266938,"transit_midpoint_bjd":2458594.608,"eccentricity_upper_limit":0.09,"equilibrium_temperature_k":2155},"designations":[{"catalog":"Exoplanet","designation":"TOI-3071 b"},{"catalog":"Host star","designation":"TOI-3071"}],"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."}