{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-02T00:15:44.325Z","years_from_j2000":26.668,"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-1203-e","name":"TOI-1203 e","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":211.98305460235335,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":168.2267358,"dec_deg":-34.4069371,"epoch_ra_deg":168.548516,"epoch_dec_deg":-34.55288,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-1203","semi_major_axis_km":null,"periapsis_km":null,"mass_kg":2.5142826723401708e+26,"mass_msun":0.000126447,"constellation":"Hydra","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-1203-e","radius_km":46623.911,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-1203","host_v_mag":8.59,"eccentricity":0.152,"uncertainties":{"mass_kg":[1.0630458804668655e+25,1.0929067198058225e+25],"distance_ly":[0.6167617102623618,0.620349430417246],"eccentricity":[0.029,0.029],"host_mass_solar":[0.036,0.036],"host_radius_solar":[0.011,0.011],"host_temperature_k":[62,62],"orbital_period_days":[0.63,0.67],"argument_of_periastron_deg":[10.8,11.4]},"host_mass_solar":0.886,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.179,"planets_in_system":4,"discovery_facility":"La Silla Observatory","host_spectral_type":"G3 V","host_temperature_k":5737,"orbital_period_days":204.59,"periastron_epoch_bjd":2458962.29,"transit_midpoint_bjd":2458915.45,"argument_of_periastron_deg":189.7},"designations":[{"catalog":"Exoplanet","designation":"TOI-1203 e"},{"catalog":"Host star","designation":"TOI-1203"}],"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":"2026-09-01T22:58:55.274Z","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."}