{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T22:25:40.834Z","years_from_j2000":26.684,"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-94-b-b","name":"WASP-94 B b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":680.6753140397349,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":313.7882932,"dec_deg":-34.135724,"epoch_ra_deg":314.206466,"epoch_dec_deg":-34.033476,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"WASP-94 B","semi_major_axis_km":5011528.66845,"periapsis_km":null,"mass_kg":1.1729994630807726e+27,"mass_msun":0.000589918,"constellation":"Microscopium","discovered":"2014","featured":false,"url":"https://spacecatalog.org/object/wasp-94-b-b","radius_km":89931.21,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"WASP-94 B","host_v_mag":10.589,"eccentricity":0,"uncertainties":{"mass_kg":[5.504547123743314e+25,5.314632185547548e+25],"distance_ly":[6.601405084986887,6.731867636073584],"host_mass_solar":[0.09,0.09],"host_radius_solar":[0.12,0.12],"host_temperature_k":[90,90],"semi_major_axis_km":[74798.93535,89758.72241999999],"orbital_period_days":[0.00024,0.00024]},"host_mass_solar":1.24,"stars_in_system":2,"discovery_method":"Radial Velocity","host_radius_solar":1.35,"planets_in_system":2,"discovery_facility":"SuperWASP","host_spectral_type":"F9","host_temperature_k":6040,"orbital_period_days":2.00839,"periastron_epoch_bjd":2456574.359,"equilibrium_temperature_k":1848.91},"designations":[{"catalog":"Exoplanet","designation":"WASP-94 B b"},{"catalog":"Host star","designation":"WASP-94 B"}],"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."}