{"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":"2026-09-03T23:43:26.493Z","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-35834","name":"HD 35834","class":"b9v_blue_white_main_sequence_star","category":"star","object_type":"B9V blue-white main-sequence star","mag":7.69,"mag_band":"V","abs_mag":-0.137,"abs_mag_band":"V","distance_ly":1199.1044641406534,"distance_method":"parallax","ra_deg":81.90366,"dec_deg":1.107591,"epoch_ra_deg":82.250629,"epoch_dec_deg":1.130487,"epoch_moved_arcsec":0.074,"pm_ra_mas_yr":1.34,"pm_dec_mas_yr":2.43,"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-35834","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05276+0106","companions":[{"measured":1991,"magnitude":10.95,"components":null,"discoverer_code":"A  2643","separation_arcsec":0.5,"position_angle_deg":5}],"mass_solar":3.415,"radius_solar":3.127,"spectral_type":"B9V","color_index_bv":-0.027,"luminosity_solar":98.80979539411275,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1999MSS...C05....0H, quality C)","surface_gravity_log_g":4.015,"surface_temperature_k":12328,"proper_motion_ra_mas_yr":1.34,"proper_motion_dec_mas_yr":2.43,"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":182.0552},"designations":[{"catalog":"HD","designation":"HD 35834"},{"catalog":"HIP","designation":"HIP 25533"}],"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."}