{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.679","julian_year":2026.679,"time":"2026-09-06T03:25:32.110Z","years_from_j2000":26.679,"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-132413","name":"HD 132413","class":"k0iii_orange_giant","category":"star","object_type":"K0III orange giant","mag":8.68,"mag_band":"V","abs_mag":1.425,"abs_mag_band":"V","distance_ly":921.3457790005422,"distance_method":"parallax","ra_deg":224.96994,"dec_deg":-30.357572,"epoch_ra_deg":225.375157,"epoch_dec_deg":-30.464441,"epoch_moved_arcsec":1.091,"pm_ra_mas_yr":-32.4,"pm_dec_mas_yr":24.93,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Centaurus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-132413","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"14599-3021","age_years":455100860,"companions":[{"measured":2016,"magnitude":13,"components":null,"discoverer_code":"RSS 360","separation_arcsec":9.9,"position_angle_deg":323}],"mass_solar":2.801,"radius_solar":10.436,"spectral_type":"K0III","color_index_bv":1.158,"luminosity_solar":23.442288153199225,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1982MSS...C03....0H, quality C)","surface_gravity_log_g":2.701,"surface_temperature_k":4944,"proper_motion_ra_mas_yr":-32.4,"proper_motion_dec_mas_yr":24.93,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":55.0877},"designations":[{"catalog":"HD","designation":"HD 132413"},{"catalog":"HIP","designation":"HIP 73389"}],"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."}