{"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":"2026-09-07T01:40:26.307Z","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":"hd-150010-b","name":"HD 150010 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":471.2633501629226,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":247.8670682,"dec_deg":72.6125804,"epoch_ra_deg":247.772555,"epoch_dec_deg":72.553987,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 150010","semi_major_axis_km":209437018.97999996,"periapsis_km":null,"mass_kg":4.555499039416129e+27,"mass_msun":0.00229103,"constellation":"Draco","discovered":"2022","featured":false,"url":"https://spacecatalog.org/object/hd-150010-b","radius_km":84828.73000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 150010","host_v_mag":6.2893,"eccentricity":0.2,"uncertainties":{"mass_kg":[7.592498399026883e+26,7.592498399026883e+26],"distance_ly":[2.1950324220336834,2.1950324220336834],"eccentricity":[0.1,0.1],"host_mass_solar":[0.1,0.1],"host_radius_solar":[0.4,0.4],"host_temperature_k":[83,83],"semi_major_axis_km":[14959787.07,14959787.07],"orbital_period_days":[8,8],"argument_of_periastron_deg":[91,91]},"host_mass_solar":1.3,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":16.2,"planets_in_system":1,"discovery_facility":"Bohyunsan Optical Astronomical Observatory","host_spectral_type":"K2 III","host_temperature_k":4153,"orbital_period_days":562,"periastron_epoch_bjd":2449811,"equilibrium_temperature_k":681.22,"argument_of_periastron_deg":137},"designations":[{"catalog":"Exoplanet","designation":"HD 150010 b"},{"catalog":"Host star","designation":"HD 150010"}],"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."}