{"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":"2026-09-07T13:16:44.891Z","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":"tic-4672985-b","name":"TIC 4672985 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":826.4313376775702,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":38.4706782,"dec_deg":-10.6573827,"epoch_ra_deg":38.797798,"epoch_dec_deg":-10.539101,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TIC 4672985","semi_major_axis_km":49367297.331,"periapsis_km":null,"mass_kg":2.418210740090062e+28,"mass_msun":0.0121615,"constellation":"Cetus","discovered":"2024","featured":false,"url":"https://spacecatalog.org/object/tic-4672985-b","radius_km":73350.79180902,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TIC 4672985","host_v_mag":11.501,"eccentricity":0.018,"uncertainties":{"mass_kg":[1.9171058457542877e+27,1.9171058457542877e+27],"radius_km":[4646.980015875,4789.964006551],"distance_ly":[7.097162779116338,7.221102202648699],"eccentricity":[0.004,0.004],"host_mass_solar":[0.03,0.03],"host_radius_solar":[0.01,0.01],"host_temperature_k":[65,72],"semi_major_axis_km":[2842359.5432999996,2842359.5432999996],"orbital_period_days":[0.0005,0.0004],"argument_of_periastron_deg":[7.6,11.3]},"host_mass_solar":1.01,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.15,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":5757,"orbital_period_days":69.048,"transit_midpoint_bjd":2458429.8577,"equilibrium_temperature_k":517.2,"argument_of_periastron_deg":126.3},"designations":[{"catalog":"Exoplanet","designation":"TIC 4672985 b"},{"catalog":"Host star","designation":"TIC 4672985"}],"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."}