{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T15:50:00.818Z","years_from_j2000":26.67,"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-47792","name":"HIP 47792","class":"orange_star","category":"star","object_type":"Orange star","mag":10.4,"mag_band":"V","abs_mag":6.594,"abs_mag_band":"V","distance_ly":188.20331925940332,"distance_method":"parallax","ra_deg":146.15433000000002,"dec_deg":-62.245267,"epoch_ra_deg":146.33213,"epoch_dec_deg":-62.367573,"epoch_moved_arcsec":7.641,"pm_ra_mas_yr":-271.18,"pm_dec_mas_yr":92.46,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Carina","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-47792","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"09446-6215","age_years":11766900000,"companions":[{"measured":2016,"magnitude":15.72,"components":null,"discoverer_code":"KPP2891","separation_arcsec":2.8,"position_angle_deg":124}],"mass_solar":0.741,"radius_solar":0.777,"color_index_bv":1.074,"luminosity_solar":0.2006319064790571,"radial_velocity_km_s":0,"surface_gravity_log_g":4.546,"surface_temperature_k":4661,"proper_motion_ra_mas_yr":-271.18,"proper_motion_dec_mas_yr":92.46,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":0.2361},"designations":[{"catalog":"HIP","designation":"HIP 47792"}],"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."}