{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.680","julian_year":2026.68,"time":"2026-09-06T08:22:29.109Z","years_from_j2000":26.68,"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-126028","name":"HD 126028","class":"a0_white_star","category":"star","object_type":"A0 white star","mag":6.95,"mag_band":"V","abs_mag":1.179,"abs_mag_band":"V","distance_ly":465.2731621297769,"distance_method":"parallax","ra_deg":214.97874,"dec_deg":67.782495,"epoch_ra_deg":215.117183,"epoch_dec_deg":67.658776,"epoch_moved_arcsec":0.98,"pm_ra_mas_yr":-36.46,"pm_dec_mas_yr":4.61,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Ursa Minor","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-126028","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"14199+6747","age_years":213361580,"companions":[{"measured":2017,"magnitude":10.05,"components":"AB","discoverer_code":"STF1840","separation_arcsec":27.2,"position_angle_deg":221},{"measured":2020,"magnitude":11.09,"components":"AC","discoverer_code":"WAL  65","separation_arcsec":144.8,"position_angle_deg":239}],"mass_solar":2.359,"radius_solar":1.943,"spectral_type":"A0","color_index_bv":0.02,"luminosity_solar":29.40356573672507,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1993yCat.3135....0C, quality E)","surface_gravity_log_g":4.106,"surface_temperature_k":10090,"proper_motion_ra_mas_yr":-36.46,"proper_motion_dec_mas_yr":4.61,"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":35.5972},"designations":[{"catalog":"HD","designation":"HD 126028"},{"catalog":"HIP","designation":"HIP 70041"}],"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."}