{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-01T22:53:39.883Z","years_from_j2000":26.668,"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":"hip-92005","name":"HIP 92005","class":"a2_white_star","category":"star","object_type":"A2 white star","mag":9.05,"mag_band":"V","abs_mag":-0.803,"abs_mag_band":"V","distance_ly":3048.1903179268743,"distance_method":"parallax","ra_deg":281.291655,"dec_deg":39.225781,"epoch_ra_deg":281.515635,"epoch_dec_deg":39.253068,"epoch_moved_arcsec":0.061,"pm_ra_mas_yr":2.28,"pm_dec_mas_yr":-0.06,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Lyra","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-92005","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"18452+3914","companions":[{"measured":2021,"magnitude":11.07,"components":"AB","discoverer_code":"STF2392","separation_arcsec":2.8,"position_angle_deg":314},{"measured":2021,"magnitude":10.46,"components":"AC","discoverer_code":"STF2392","separation_arcsec":23.8,"position_angle_deg":173}],"spectral_type":"A2","color_index_bv":0.1,"luminosity_solar":182.4735830762581,"variable_mag_max":8.98,"variable_mag_min":9.1,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (quality D)","proper_motion_ra_mas_yr":2.28,"proper_motion_dec_mas_yr":-0.06},"designations":[{"catalog":"HIP","designation":"HIP 92005"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}