{"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":"2026-09-07T04:48:46.170Z","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-142022-a-b","name":"HD 142022 A b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":111.80705859405508,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":242.5481731,"dec_deg":-84.2317494,"epoch_ra_deg":244.213957,"epoch_dec_deg":-84.300826,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 142022 A","semi_major_axis_km":438321761.15099996,"periapsis_km":null,"mass_kg":8.560541944902811e+27,"mass_msun":0.00430522,"constellation":"Octans","discovered":"2005","featured":false,"url":"https://spacecatalog.org/object/hd-142022-a-b","radius_km":82277.49,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 142022 A","host_v_mag":7.7,"eccentricity":0.53,"uncertainties":{"mass_kg":[1.1578560058515997e+27,1.7272933857786156e+27],"distance_ly":[0.10273925898077418,0.10273925898077418],"eccentricity":[0.2,0.2],"host_mass_solar":[0.05,0.05],"inclination_deg":[13,13],"host_radius_solar":[0.03,0.03],"host_temperature_k":[77,77],"semi_major_axis_km":[10471850.949000001,10471850.949000001],"orbital_period_days":[46,46],"argument_of_periastron_deg":[5,4.1]},"host_mass_solar":0.9,"inclination_deg":71,"stars_in_system":2,"discovery_method":"Radial Velocity","host_radius_solar":1.04,"planets_in_system":1,"discovery_facility":"La Silla Observatory","host_spectral_type":"G9 IV-V","host_temperature_k":5421,"orbital_period_days":1928,"periastron_epoch_bjd":2456730,"equilibrium_temperature_k":155.74,"argument_of_periastron_deg":168.5},"designations":[{"catalog":"Exoplanet","designation":"HD 142022 A b"},{"catalog":"Host star","designation":"HD 142022 A"}],"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."}