{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.683","julian_year":2026.683,"time":"2026-09-07T08:07:53.209Z","years_from_j2000":26.683,"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-2876-b","name":"TOI-2876 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":736.2784533128853,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":110.2473528,"dec_deg":-21.1146384,"epoch_ra_deg":110.53708,"epoch_dec_deg":-21.164602,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-2876","semi_major_axis_km":9783700.743779998,"periapsis_km":null,"mass_kg":3.226811819586425e+26,"mass_msun":0.000162281,"constellation":"Canis Major","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-2876-b","radius_km":61483.11981754,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-2876","host_v_mag":12.401,"uncertainties":{"mass_kg":[9.870247916346081e+25,9.870247916346081e+25],"radius_km":[2001.7759970260004,2144.759987702],"distance_ly":[4.892345665751151,4.960838505071667],"host_mass_solar":[0.045,0.041],"inclination_deg":[0.13,0.12],"host_radius_solar":[0.02,0.021],"host_temperature_k":[96,110],"semi_major_axis_km":[164557.65777,134638.08362999998],"orbital_period_days":[0.000007,0.000007]},"host_mass_solar":0.939,"inclination_deg":87.13,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.873,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":5271,"orbital_period_days":6.2996431,"transit_midpoint_bjd":2459109.77217,"eccentricity_upper_limit":0.13,"equilibrium_temperature_k":929},"designations":[{"catalog":"Exoplanet","designation":"TOI-2876 b"},{"catalog":"Host star","designation":"TOI-2876"}],"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."}