{"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":"2026-09-07T09:48:35.805Z","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-4914-b","name":"TOI-4914 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":978.1103611347418,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":204.5426717,"dec_deg":-28.1429206,"epoch_ra_deg":204.919371,"epoch_dec_deg":-28.279742,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-4914","semi_major_axis_km":14660591.328599999,"periapsis_km":null,"mass_kg":1.355682105988643e+27,"mass_msun":0.000681792,"constellation":"Hydra","discovered":"2024","featured":false,"url":"https://spacecatalog.org/object/toi-4914-b","radius_km":82086.147,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-4914","host_v_mag":12.235,"eccentricity":0.408,"uncertainties":{"mass_kg":[7.763818228128793e+25,7.763818228128793e+25],"radius_km":[2296.116,2296.116],"distance_ly":[11.08605527859211,11.337195689434001],"eccentricity":[0.023,0.023],"host_mass_solar":[0.06,0.06],"inclination_deg":[0.22,0.2],"host_radius_solar":[0.023,0.023],"host_temperature_k":[62,62],"semi_major_axis_km":[448793.61209999997,448793.61209999997],"orbital_period_days":[0.00001,0.00001],"argument_of_periastron_deg":[4,4.2]},"host_mass_solar":1.03,"inclination_deg":86.35,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":5805,"orbital_period_days":10.60057,"transit_midpoint_bjd":2459317.2727,"equilibrium_temperature_k":894,"argument_of_periastron_deg":58.7},"designations":[{"catalog":"Exoplanet","designation":"TOI-4914 b"},{"catalog":"Host star","designation":"TOI-4914"}],"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."}