{"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":"2026-09-07T16:30:19.756Z","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":"hr-2562-b","name":"HR 2562 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":110.91632552651066,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":102.5042716,"dec_deg":-60.2486775,"epoch_ra_deg":102.592051,"epoch_dec_deg":-60.278928,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HR 2562","semi_major_axis_km":3321072729.5399995,"periapsis_km":null,"mass_kg":4.1758741194647855e+28,"mass_msun":0.0210011,"constellation":"Pictor","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/hr-2562-b","radius_km":79356.25641900001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HR 2562","host_v_mag":6.11,"eccentricity":0.34,"uncertainties":{"radius_km":[7864.133519000001,7864.133519000001],"distance_ly":[0.15590274854860336,0.15655506130403685],"eccentricity":[0.18,0.23],"inclination_deg":[0.7,0.5],"host_radius_solar":[0.027,0.027],"host_temperature_k":[81,81],"semi_major_axis_km":[433833825.03,568471908.66],"argument_of_periastron_deg":[24,32]},"host_mass_solar":1.3,"inclination_deg":86.7,"stars_in_system":1,"discovery_method":"Imaging","host_radius_solar":1.334,"planets_in_system":1,"discovery_facility":"Gemini Observatory","host_spectral_type":"F5 V","host_temperature_k":6597,"equilibrium_temperature_k":1255,"argument_of_periastron_deg":37},"designations":[{"catalog":"Exoplanet","designation":"HR 2562 b"},{"catalog":"Host star","designation":"HR 2562"}],"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."}