{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.679","julian_year":2026.679,"time":"2026-09-05T23:50:49.175Z","years_from_j2000":26.679,"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-43212","name":"HD 43212","class":"a0_white_star","category":"star","object_type":"A0 white star","mag":7.69,"mag_band":"V","abs_mag":1.627,"abs_mag_band":"V","distance_ly":532.0657482532556,"distance_method":"parallax","ra_deg":93.80678999999999,"dec_deg":6.51591,"epoch_ra_deg":94.168019,"epoch_dec_deg":6.507675,"epoch_moved_arcsec":0.43,"pm_ra_mas_yr":0.42,"pm_dec_mas_yr":-16.13,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Orion","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-43212","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"06152+0631","companions":[{"measured":2021,"magnitude":8.98,"components":"AB","discoverer_code":"A  2717","separation_arcsec":0.6,"position_angle_deg":349},{"measured":2016,"magnitude":12.8,"components":"AB,C","discoverer_code":"A  2717","separation_arcsec":8.8,"position_angle_deg":310},{"measured":2015,"magnitude":13,"components":"AB,E","discoverer_code":"A  2717","separation_arcsec":12.9,"position_angle_deg":354},{"measured":2015,"magnitude":10.6,"components":"AB,D","discoverer_code":"A  2717","separation_arcsec":38.4,"position_angle_deg":118}],"spectral_type":"A0","color_index_bv":0.029,"luminosity_solar":19.462561593612413,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1993yCat.3135....0C, quality E)","proper_motion_ra_mas_yr":0.42,"proper_motion_dec_mas_yr":-16.13},"designations":[{"catalog":"HD","designation":"HD 43212"},{"catalog":"HIP","designation":"HIP 29685"}],"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."}