{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.688","julian_year":2026.688,"time":"2026-09-09T07:24:50.977Z","years_from_j2000":26.688,"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-194-b","name":"WASP-194 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1555.2147174305248,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":295.3877064,"dec_deg":56.2178049,"epoch_ra_deg":295.528376,"epoch_dec_deg":56.280015,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"WASP-194","semi_major_axis_km":7031099.9229,"periapsis_km":null,"mass_kg":2.2283982801263345e+27,"mass_msun":0.00112069,"constellation":"Cygnus","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/wasp-194-b","radius_km":98730.45174853501,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"WASP-194","host_v_mag":11.985,"eccentricity":0,"uncertainties":{"mass_kg":[5.030030189653918e+26,5.030030189653918e+26],"radius_km":[6291.295972430001,6291.295972430001],"distance_ly":[12.488527702774107,12.687483093181319],"host_mass_solar":[0.08,0.08],"inclination_deg":[0.46,0.47],"host_radius_solar":[0.09,0.09],"host_temperature_k":[200,200],"semi_major_axis_km":[448793.61209999997,448793.61209999997],"orbital_period_days":[5e-7,4e-7]},"host_mass_solar":1.29,"inclination_deg":83.23,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.409,"planets_in_system":1,"discovery_facility":"SuperWASP","host_temperature_k":6405,"orbital_period_days":3.183387,"transit_midpoint_bjd":2457449.0511,"equilibrium_temperature_k":1693},"designations":[{"catalog":"Exoplanet","designation":"WASP-194 b"},{"catalog":"Host star","designation":"WASP-194"}],"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."}