{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.687","julian_year":2026.687,"time":"2026-09-08T18:05:59.074Z","years_from_j2000":26.687,"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-126-b","name":"WASP-126 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":706.2133584149559,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":63.374706,"dec_deg":-69.2265926,"epoch_ra_deg":63.369833,"epoch_dec_deg":-69.157471,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"WASP-126","semi_major_axis_km":6716944.394429999,"periapsis_km":null,"mass_kg":5.392867584615615e+26,"mass_msun":0.000271215,"constellation":"Hydrus","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/wasp-126-b","radius_km":67056.713900713,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"WASP-126","host_v_mag":10.994,"uncertainties":{"radius_km":[3307.2818601960007,3307.2818601960007],"distance_ly":[3.026731185211379,3.0528236954287187],"inclination_deg":[0.435,0.435],"semi_major_axis_km":[119678.29656,119678.29656],"orbital_period_days":[0.0000371,0.0000371]},"host_mass_solar":1.12,"inclination_deg":89.51,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.27,"planets_in_system":2,"discovery_facility":"SuperWASP-South","host_spectral_type":"G2","host_temperature_k":5800,"orbital_period_days":3.28883,"transit_midpoint_bjd":2458827.416215,"eccentricity_upper_limit":0.18,"equilibrium_temperature_k":1480},"designations":[{"catalog":"Exoplanet","designation":"WASP-126 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."}