{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.675","julian_year":2026.675,"time":"2026-09-04T10:22:06.452Z","years_from_j2000":26.675,"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-72-b","name":"WASP-72 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1417.9778983786507,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":41.0400779,"dec_deg":-30.1690785,"epoch_ra_deg":41.328075,"epoch_dec_deg":-30.05505,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"WASP-72","semi_major_axis_km":5551576.9816769995,"periapsis_km":null,"mass_kg":4.365708460866308e+27,"mass_msun":0.00219558,"constellation":"Fornax","discovered":"2012","featured":false,"url":"https://spacecatalog.org/object/wasp-72-b","radius_km":92224.838541,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"WASP-72","host_v_mag":10.868,"eccentricity":0,"uncertainties":{"mass_kg":[1.328693879394094e+27,1.328693879394094e+27],"radius_km":[12868.582122,12868.582122],"distance_ly":[26.813315812093478,27.843969965678387],"host_mass_solar":[1.28,1.28],"inclination_deg":[2.55,2.55],"host_radius_solar":[0.29,0.29],"host_temperature_k":[100,100],"semi_major_axis_km":[76294.914057,71806.977936],"orbital_period_days":[0.000002,0.000002]},"host_mass_solar":2.78,"inclination_deg":86.8,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":2.18,"planets_in_system":1,"discovery_facility":"SuperWASP","host_spectral_type":"F7","host_temperature_k":6250,"orbital_period_days":2.21673,"transit_midpoint_bjd":2458789.06301,"equilibrium_temperature_k":2210},"designations":[{"catalog":"Exoplanet","designation":"WASP-72 b"},{"catalog":"Host star","designation":"WASP-72"}],"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."}