{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.673","julian_year":2026.673,"time":"2026-09-03T16:55:53.253Z","years_from_j2000":26.673,"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-59088","name":"HD 59088","class":"o6f_blue_star","category":"star","object_type":"O6f blue star","mag":10.53,"mag_band":"V","abs_mag":4.271,"abs_mag_band":"V","distance_ly":582.4220098780768,"distance_method":"parallax","ra_deg":112.29486,"dec_deg":20.911802,"epoch_ra_deg":112.691941,"epoch_dec_deg":20.856743,"epoch_moved_arcsec":0.068,"pm_ra_mas_yr":-1.63,"pm_dec_mas_yr":1.95,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Gemini","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-59088","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"07292+2055","companions":[{"measured":2015,"magnitude":8.31,"components":null,"discoverer_code":"STT9001","separation_arcsec":99.4,"position_angle_deg":3}],"radius_solar":9.376,"spectral_type":"O6f","color_index_bv":-0.15,"luminosity_solar":1.7045117524684736,"variable_mag_max":10.491,"variable_mag_min":10.611,"radial_velocity_km_s":84.2,"spectral_type_source":"SIMBAD (1977ApJ...215..609H, quality D)","surface_gravity_log_g":3.462,"surface_temperature_k":19997,"proper_motion_ra_mas_yr":-1.63,"proper_motion_dec_mas_yr":1.95,"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":909.8702},"designations":[],"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."}