{"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":"2026-09-02T18:57:09.733Z","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-80094","name":"HD 80094","class":"b6iii_blue_white_giant","category":"star","object_type":"B6III blue-white giant","mag":6.02,"mag_band":"V","abs_mag":-0.278,"abs_mag_band":"V","distance_ly":593.0116551497839,"distance_method":"parallax","ra_deg":138.82353,"dec_deg":-58.388377,"epoch_ra_deg":139.004527,"epoch_dec_deg":-58.49952,"epoch_moved_arcsec":0.461,"pm_ra_mas_yr":-17.25,"pm_dec_mas_yr":1.14,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Carina","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-80094","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"mass_solar":3.523,"radius_solar":3.157,"spectral_type":"B6III","color_index_bv":-0.101,"luminosity_solar":112.5122992965767,"radial_velocity_km_s":16,"spectral_type_source":"SIMBAD (1975MSS...C01....0H, quality C)","surface_gravity_log_g":3.847,"surface_temperature_k":12349,"proper_motion_ra_mas_yr":-17.25,"proper_motion_dec_mas_yr":1.14,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) — low confidence: above 7,500 K GSP-Phot's temperature and extinction are degenerate","bolometric_luminosity_solar":216.9165},"designations":[{"catalog":"HD","designation":"HD 80094"},{"catalog":"HIP","designation":"HIP 45418"},{"catalog":"HR","designation":"HR 3691"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T18:38:07.546Z","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."}