{"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":"2026-09-09T00:53:32.376Z","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-2641-b","name":"TOI-2641 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1122.12470971557,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":171.1303716,"dec_deg":-42.7321394,"epoch_ra_deg":171.451577,"epoch_dec_deg":-42.879667,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-2641","semi_major_axis_km":9080590.751489999,"periapsis_km":null,"mass_kg":7.326760954941499e+26,"mass_msun":0.000368473,"constellation":"Centaurus","discovered":"2023","featured":false,"url":"https://spacecatalog.org/object/toi-2641-b","radius_km":115459.579678123,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-2641","host_v_mag":11.693,"uncertainties":{"mass_kg":[6.833248557929761e+25,4.175874117075918e+25],"radius_km":[45754.879886465,33029.303887148],"distance_ly":[10.694667625332016,10.900146143293565],"host_mass_solar":[0.07,0.07],"inclination_deg":[0.55,0.71],"host_radius_solar":[0.055,0.055],"host_temperature_k":[100,100],"semi_major_axis_km":[643270.84401,628311.0569399999],"orbital_period_days":[0.000037,0.000023]},"host_mass_solar":1.16,"inclination_deg":83.75,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.336,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"F9 V","host_temperature_k":6100,"orbital_period_days":4.880974,"transit_midpoint_bjd":2459332.21332,"eccentricity_upper_limit":0.18,"equilibrium_temperature_k":1387},"designations":[{"catalog":"Exoplanet","designation":"TOI-2641 b"},{"catalog":"Host star","designation":"TOI-2641"}],"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."}