{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.671","julian_year":2026.671,"time":"2026-09-02T23:35:01.601Z","years_from_j2000":26.671,"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-31076","name":"HD 31076","class":"f6v_yellow_white_main_sequence_star","category":"star","object_type":"F6V yellow-white main-sequence star","mag":7.89,"mag_band":"V","abs_mag":2.112,"abs_mag_band":"V","distance_ly":466.6042063072389,"distance_method":"parallax","ra_deg":72.668475,"dec_deg":-45.668363,"epoch_ra_deg":72.867414,"epoch_dec_deg":-45.621739,"epoch_moved_arcsec":0.789,"pm_ra_mas_yr":22.3,"pm_dec_mas_yr":19.44,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Caelum","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-31076","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"04507-4540","age_years":2114146200,"companions":[{"measured":2015,"magnitude":12.2,"components":null,"discoverer_code":"HJ 3699","separation_arcsec":17.6,"position_angle_deg":152}],"mass_solar":1.611,"radius_solar":2.782,"spectral_type":"F6V","color_index_bv":0.53,"luminosity_solar":12.450878639160537,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1978MSS...C02....0H, quality C)","surface_gravity_log_g":3.736,"surface_temperature_k":6193,"proper_motion_ra_mas_yr":22.3,"proper_motion_dec_mas_yr":19.44,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":10.1853},"designations":[{"catalog":"HD","designation":"HD 31076"},{"catalog":"HIP","designation":"HIP 22514"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","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."}