{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.678","julian_year":2026.678,"time":"2026-09-05T14:25:28.770Z","years_from_j2000":26.678,"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-37269","name":"26 Aur","class":"a2_5v_f6iii_white_main_sequence_star","category":"star","object_type":"A2.5V+F6III white main-sequence star","mag":5.4,"mag_band":"V","abs_mag":-0.798,"abs_mag_band":"V","distance_ly":566.2436750741931,"distance_method":"parallax","ra_deg":84.65869500000001,"dec_deg":30.492412,"epoch_ra_deg":85.090283,"epoch_dec_deg":30.507962,"epoch_moved_arcsec":0.648,"pm_ra_mas_yr":-21.15,"pm_dec_mas_yr":-11.98,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Auriga","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-37269","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05386+3030","companions":[{"measured":2016,"magnitude":6.21,"components":"AB","discoverer_code":"BU 1240","separation_arcsec":0.2,"position_angle_deg":321},{"measured":2016,"magnitude":null,"components":"AE","discoverer_code":"BU   90","separation_arcsec":2.2,"position_angle_deg":87},{"measured":2021,"magnitude":8.41,"components":"AB,C","discoverer_code":"STF 753","separation_arcsec":12.1,"position_angle_deg":269},{"measured":2015,"magnitude":11.5,"components":"AB,D","discoverer_code":"BU   90","separation_arcsec":35.4,"position_angle_deg":113}],"spectral_type":"A2.5V+F6III","color_index_bv":0.45,"luminosity_solar":181.63519311765114,"radial_velocity_km_s":2,"spectral_type_source":"SIMBAD (2008ApJS..176..216A, quality C)","proper_motion_ra_mas_yr":-21.15,"proper_motion_dec_mas_yr":-11.98},"designations":[{"catalog":"Bayer/Flamsteed","designation":"26 Aur"},{"catalog":"HD","designation":"HD 37269"},{"catalog":"HIP","designation":"HIP 26536"},{"catalog":"HR","designation":"HR 1914"}],"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."}