{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.681","julian_year":2026.681,"time":"2026-09-06T16:13:46.129Z","years_from_j2000":26.681,"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":"wasp-193-b","name":"WASP-193 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1180.9698433832248,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":164.3491401,"dec_deg":-29.9971229,"epoch_ra_deg":164.668949,"epoch_dec_deg":-30.140639,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"WASP-193","semi_major_axis_km":9993137.762759998,"periapsis_km":null,"mass_kg":2.1258995514886403e+26,"mass_msun":0.000106915,"constellation":"Hydra","discovered":"2023","featured":false,"url":"https://spacecatalog.org/object/wasp-193-b","radius_km":94297.947718674,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"WASP-193","host_v_mag":11.972,"eccentricity":0.081,"uncertainties":{"mass_kg":[6.453623640367284e+25,5.5045613375028394e+25],"radius_km":[3431.6159675669996,4003.5519940520007],"distance_ly":[17.064501682140016,17.560259376269467],"eccentricity":[0.055,0.076],"host_mass_solar":[0.062,0.064],"inclination_deg":[0.54,0.51],"host_radius_solar":[0.042,0.05],"host_temperature_k":[130,130],"semi_major_axis_km":[209437.01898,209437.01898],"orbital_period_days":[0.0000015,0.0000015],"argument_of_periastron_deg":[50,84]},"host_mass_solar":1.018,"inclination_deg":89.25,"stars_in_system":2,"discovery_method":"Transit","host_radius_solar":1.213,"planets_in_system":1,"discovery_facility":"WASP-South","host_spectral_type":"F9","host_temperature_k":6080,"orbital_period_days":6.2463475,"transit_midpoint_bjd":2459243.3108,"equilibrium_temperature_k":1250,"argument_of_periastron_deg":42},"designations":[{"catalog":"Exoplanet","designation":"WASP-193 b"},{"catalog":"Host star","designation":"WASP-193"}],"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."}