{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.686","julian_year":2026.686,"time":"2026-09-08T11:17:37.412Z","years_from_j2000":26.686,"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-62364-b","name":"HD 62364 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":173.22817533291678,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":113.9052658,"dec_deg":-75.5442707,"epoch_ra_deg":113.713901,"epoch_dec_deg":-75.602547,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 62364","semi_major_axis_km":920026904.805,"periapsis_km":null,"mass_kg":3.5627798737433647e+28,"mass_msun":0.0179177,"constellation":"Mensa","discovered":"2022","featured":false,"url":"https://spacecatalog.org/object/hd-62364-b","radius_km":77175.01000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 62364","host_v_mag":7.32,"eccentricity":0.607,"uncertainties":{"mass_kg":[1.195818497846734e+27,1.2527622358394356e+27],"distance_ly":[0.24168187588810686,0.24233418864354037],"eccentricity":[0.005,0.005],"host_mass_solar":[0.028,0.028],"inclination_deg":[1.6,1.5],"host_radius_solar":[0.015,0.015],"host_temperature_k":[26,26],"semi_major_axis_km":[4487936.120999999,5983914.828],"orbital_period_days":[22,24],"argument_of_periastron_deg":[0.8,0.8]},"host_mass_solar":1.157,"inclination_deg":137.3,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.401,"planets_in_system":2,"discovery_facility":"Multiple Observatories","host_spectral_type":"F7 V","host_temperature_k":6255,"orbital_period_days":5138,"periastron_epoch_bjd":2457575,"equilibrium_temperature_k":143.96,"argument_of_periastron_deg":1.2},"designations":[{"catalog":"Exoplanet","designation":"HD 62364 b"},{"catalog":"Host star","designation":"HD 62364"}],"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."}