{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.669","julian_year":2026.669,"time":"2026-09-02T10:32:17.914Z","years_from_j2000":26.669,"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-15134","name":"HIP 15134","class":"g0_yellow_star","category":"star","object_type":"G0 yellow star","mag":8.83,"mag_band":"V","abs_mag":4.443,"abs_mag_band":"V","distance_ly":245.9701799423266,"distance_method":"parallax","ra_deg":48.781890000000004,"dec_deg":16.303396,"epoch_ra_deg":49.159569,"epoch_dec_deg":16.402674,"epoch_moved_arcsec":4.124,"pm_ra_mas_yr":133.29,"pm_dec_mas_yr":-78.41,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Aries","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-15134","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"03151+1618","companions":[{"measured":2022,"magnitude":9.9,"components":"AB","discoverer_code":"HU 1055","separation_arcsec":0.6,"position_angle_deg":117},{"measured":2016,"magnitude":8.5,"components":"AB,C","discoverer_code":"ENG  13","separation_arcsec":174,"position_angle_deg":186},{"measured":2015,"magnitude":14.17,"components":"AB,D","discoverer_code":"BUP  41","separation_arcsec":189.7,"position_angle_deg":240},{"measured":2015,"magnitude":12.29,"components":"AB,E","discoverer_code":"JRN   2","separation_arcsec":251.1,"position_angle_deg":263}],"spectral_type":"G0","color_index_bv":0.67,"luminosity_solar":1.4547889712157105,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (quality D)","proper_motion_ra_mas_yr":133.29,"proper_motion_dec_mas_yr":-78.41},"designations":[{"catalog":"HIP","designation":"HIP 15134"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-01T22:58:55.274Z","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."}