{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.666","julian_year":2026.666,"time":"2026-09-01T04:03:05.523Z","years_from_j2000":26.666,"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-32008","name":"63 Eri","class":"g4iv_v_da_yellow_subgiant","category":"star","object_type":"G4IV-V+DA yellow subgiant","mag":5.39,"mag_band":"V","abs_mag":1.729,"abs_mag_band":"V","distance_ly":176.01518158050635,"distance_method":"parallax","ra_deg":74.96021999999999,"dec_deg":-10.263325,"epoch_ra_deg":75.278347,"epoch_dec_deg":-10.223715,"epoch_moved_arcsec":3.683,"pm_ra_mas_yr":19.49,"pm_dec_mas_yr":-136.75,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Eridanus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-32008","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"04598-1016","companions":[{"measured":2016,"magnitude":8.47,"components":null,"discoverer_code":"TOK 252","separation_arcsec":297.9,"position_angle_deg":221}],"spectral_type":"G4IV-V+DA","color_index_bv":0.797,"luminosity_solar":17.717400399431227,"metallicity_fe_h":-0.18,"radial_velocity_km_s":-12,"spectral_type_source":"SIMBAD (2014yCat....1.2023S, quality C)","surface_gravity_log_g":3.33,"surface_temperature_k":5352,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":19.49,"proper_motion_dec_mas_yr":-136.75,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Bayer/Flamsteed","designation":"63 Eri"},{"catalog":"HD","designation":"HD 32008"},{"catalog":"HIP","designation":"HIP 23221"},{"catalog":"HR","designation":"HR 1608"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}