{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T14:41:26.027Z","years_from_j2000":26.67,"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-10863","name":"HD 10863","class":"f2v_yellow_white_main_sequence_star","category":"star","object_type":"F2V yellow-white main-sequence star","mag":6.38,"mag_band":"V","abs_mag":3.188,"abs_mag_band":"V","distance_ly":141.86889192820732,"distance_method":"parallax","ra_deg":26.504385,"dec_deg":-27.348831,"epoch_ra_deg":26.815688,"epoch_dec_deg":-27.214548,"epoch_moved_arcsec":2.874,"pm_ra_mas_yr":97.86,"pm_dec_mas_yr":-45.12,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Fornax","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-10863","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"age_years":1572469100,"mass_solar":1.393,"radius_solar":1.55,"spectral_type":"F2V","color_index_bv":0.366,"luminosity_solar":4.6216813609224445,"radial_velocity_km_s":6,"spectral_type_source":"SIMBAD (1982MSS...C03....0H, quality C)","surface_gravity_log_g":4.141,"surface_temperature_k":6784,"proper_motion_ra_mas_yr":97.86,"proper_motion_dec_mas_yr":-45.12,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) — low confidence: Gaia's classifier calls the source a binary, which GSP-Phot fitted as one star","bolometric_luminosity_solar":4.6177},"designations":[{"catalog":"HD","designation":"HD 10863"},{"catalog":"HIP","designation":"HIP 8233"},{"catalog":"HR","designation":"HR 517"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-01T22:58:55.274Z","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."}