{"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":"2026-09-06T23:24:55.896Z","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-375-b","name":"TOI-375 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1292.2739688428408,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":47.1499034,"dec_deg":-77.3833275,"epoch_ra_deg":47.013799,"epoch_dec_deg":-77.279796,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-375","semi_major_axis_km":14810189.1993,"periapsis_km":null,"mass_kg":1.414102826788896e+27,"mass_msun":0.000711173,"constellation":"Hydrus","discovered":"2026","featured":false,"url":"https://spacecatalog.org/object/toi-375-b","radius_km":68703.811793145,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-375","host_v_mag":11.516,"eccentricity":0.087,"uncertainties":{"mass_kg":[1.0060060378113403e+26,9.870247916346081e+25],"radius_km":[3074.155990877,3145.6479862150004],"distance_ly":[10.947438818062492,10.947438818062492],"eccentricity":[0.042,0.041],"host_mass_solar":[0.075,0.076],"host_radius_solar":[0.127,0.129],"host_temperature_k":[135.3,136.9],"semi_major_axis_km":[299195.7414,299195.7414],"orbital_period_days":[0.00002,0.00002],"argument_of_periastron_deg":[27.852,25.105]},"host_mass_solar":1.441,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":2.9,"planets_in_system":3,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":5259.9,"orbital_period_days":9.45469,"transit_midpoint_bjd":2458329.291,"equilibrium_temperature_k":1373,"argument_of_periastron_deg":9.107},"designations":[{"catalog":"Exoplanet","designation":"TOI-375 b"},{"catalog":"Host star","designation":"TOI-375"}],"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."}