{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.682","julian_year":2026.682,"time":"2026-09-07T03:17:13.350Z","years_from_j2000":26.682,"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-71-b","name":"WASP-71 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1183.0181054352859,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":29.2634506,"dec_deg":0.7588247,"epoch_ra_deg":29.608718,"epoch_dec_deg":0.890217,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"WASP-71","semi_major_axis_km":6881502.052199999,"periapsis_km":null,"mass_kg":2.6384064176539866e+27,"mass_msun":0.00132689,"constellation":"Cetus","discovered":"2012","featured":false,"url":"https://spacecatalog.org/object/wasp-71-b","radius_km":84360.70502200001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"WASP-71","host_v_mag":10.56,"eccentricity":0,"uncertainties":{"mass_kg":[6.263842574286442e+26,6.263842574286442e+26],"radius_km":[8579.054748,8579.054748],"distance_ly":[21.934016401450993,22.76571516462869],"host_mass_solar":[0.27,0.27],"inclination_deg":[1.8,1.8],"host_radius_solar":[0.19,0.19],"host_temperature_k":[100,100],"semi_major_axis_km":[89758.72241999999,89758.72241999999],"orbital_period_days":[0.000007,0.000007]},"host_mass_solar":0.76,"inclination_deg":84.2,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.82,"planets_in_system":1,"discovery_facility":"SuperWASP","host_spectral_type":"F8","host_temperature_k":6050,"orbital_period_days":2.90367,"transit_midpoint_bjd":2458720.93288,"equilibrium_temperature_k":2016.1},"designations":[{"catalog":"Exoplanet","designation":"WASP-71 b"},{"catalog":"Host star","designation":"WASP-71"}],"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."}