{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.681","julian_year":2026.681,"time":"2026-09-06T19:01:24.569Z","years_from_j2000":26.681,"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":"qatar-5-b","name":"Qatar-5 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1199.1400151858245,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":7.0539375,"dec_deg":42.0613451,"epoch_ra_deg":7.413137,"epoch_dec_deg":42.210008,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Qatar-5","semi_major_axis_km":6173904.123788999,"periapsis_km":null,"mass_kg":8.199939369974978e+27,"mass_msun":0.00412387,"constellation":"Andromeda","discovered":"2017","featured":false,"url":"https://spacecatalog.org/object/qatar-5-b","radius_km":79141.7800503,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Qatar-5","host_v_mag":12.614,"eccentricity":0,"uncertainties":{"mass_kg":[3.416641404156241e+26,3.416641404156241e+26],"radius_km":[4575.495865600001,4575.495865600001],"distance_ly":[25.293427091933452,26.382789393507377],"host_mass_solar":[0.056,0.056],"inclination_deg":[0.87,0.87],"host_radius_solar":[0.051,0.051],"host_temperature_k":[49,49],"semi_major_axis_km":[100230.57336899999,100230.57336899999]},"host_mass_solar":1.128,"inclination_deg":88.74,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.076,"planets_in_system":1,"discovery_facility":"Qatar","host_spectral_type":"G2 V","host_temperature_k":5747,"orbital_period_days":2.8792319,"transit_midpoint_bjd":2457336.758242,"equilibrium_temperature_k":1415},"designations":[{"catalog":"Exoplanet","designation":"Qatar-5 b"},{"catalog":"Host star","designation":"Qatar-5"}],"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."}