{"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":"2026-09-06T20:38:24.667Z","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":"hd-68475-b","name":"HD 68475 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":109.03309860157417,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":122.7192621,"dec_deg":-42.8128841,"epoch_ra_deg":122.945743,"epoch_dec_deg":-42.892048,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 68475","semi_major_axis_km":1087576519.9889998,"periapsis_km":null,"mass_kg":9.794322934744678e+27,"mass_msun":0.00492571,"constellation":"Puppis","discovered":"2026","featured":false,"url":"https://spacecatalog.org/object/hd-68475-b","radius_km":81639.68000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 68475","host_v_mag":8.78,"eccentricity":0.62,"uncertainties":{"mass_kg":[8.921185618856587e+26,1.0060060378710621e+27],"distance_ly":[0.10828391740195882,0.10861007377967556],"eccentricity":[0.02,0.02],"host_mass_solar":[0.1,0.1],"inclination_deg":[19,21],"host_radius_solar":[0.031129,0.059565],"host_temperature_k":[113,113],"semi_major_axis_km":[53855233.45199999,58343169.573],"orbital_period_days":[323,463],"argument_of_periastron_deg":[1.7,1.8]},"host_mass_solar":0.83,"inclination_deg":87,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":0.79099,"planets_in_system":1,"discovery_facility":"Las Campanas Observatory","host_spectral_type":"K2 VC","host_temperature_k":5022,"orbital_period_days":7832,"periastron_epoch_bjd":2451564,"equilibrium_temperature_k":79.88,"argument_of_periastron_deg":195.6},"designations":[{"catalog":"Exoplanet","designation":"HD 68475 b"},{"catalog":"Host star","designation":"HD 68475"}],"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."}