{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T20:58:48.489Z","years_from_j2000":26.684,"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-24064-b","name":"HD 24064 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":979.2747394031907,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":59.1510071,"dec_deg":74.0800789,"epoch_ra_deg":59.944429,"epoch_dec_deg":74.157881,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 24064","semi_major_axis_km":192981253.20299998,"periapsis_km":null,"mass_kg":2.446694872198553e+28,"mass_msun":0.0123048,"constellation":"Camelopardalis","discovered":"2015","featured":false,"url":"https://spacecatalog.org/object/hd-24064-b","radius_km":78450.63,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 24064","host_v_mag":6.74616,"eccentricity":0.35,"uncertainties":{"mass_kg":[5.485607587784188e+27,5.485607587784188e+27],"distance_ly":[6.281771834824478,6.360049365476496],"eccentricity":[0.08,0.08],"host_mass_solar":[0.53,0.53],"host_radius_solar":[4.2,4.2],"host_temperature_k":[22,22],"semi_major_axis_km":[5983914.828,5983914.828],"orbital_period_days":[3,3],"argument_of_periastron_deg":[6.3,6.3]},"host_mass_solar":1.61,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":40,"planets_in_system":1,"discovery_facility":"Bohyunsan Optical Astronomical Observatory","host_spectral_type":"K0","host_temperature_k":4052,"orbital_period_days":535.59998,"periastron_epoch_bjd":2455278.3,"equilibrium_temperature_k":1088.02,"argument_of_periastron_deg":250.8},"designations":[{"catalog":"Exoplanet","designation":"HD 24064 b"},{"catalog":"Host star","designation":"HD 24064"}],"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."}