{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.673","julian_year":2026.673,"time":"2026-09-03T16:50:41.910Z","years_from_j2000":26.673,"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-85191","name":"HIP 85191","class":"k5_orange_star","category":"star","object_type":"K5 orange star","mag":8.55,"mag_band":"V","abs_mag":1.915,"abs_mag_band":"V","distance_ly":692.4763040982821,"distance_method":"parallax","ra_deg":261.149325,"dec_deg":32.249652,"epoch_ra_deg":261.400334,"epoch_dec_deg":32.224549,"epoch_moved_arcsec":0.624,"pm_ra_mas_yr":-9.63,"pm_dec_mas_yr":-21.32,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Hercules","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-85191","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"17246+3215","age_years":376913700,"companions":[{"measured":2015,"magnitude":12.5,"components":"AB","discoverer_code":"H N   5","separation_arcsec":24.6,"position_angle_deg":356},{"measured":2015,"magnitude":12.2,"components":"AC","discoverer_code":"H N   5","separation_arcsec":37.2,"position_angle_deg":181},{"measured":2015,"magnitude":8.98,"components":"AD","discoverer_code":"H N   5","separation_arcsec":152.3,"position_angle_deg":15}],"mass_solar":3.002,"radius_solar":12.115,"spectral_type":"K5","color_index_bv":1.567,"luminosity_solar":14.92794409578996,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (quality D)","surface_gravity_log_g":2.66,"surface_temperature_k":4676,"proper_motion_ra_mas_yr":-9.63,"proper_motion_dec_mas_yr":-21.32,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":58.4952},"designations":[{"catalog":"HIP","designation":"HIP 85191"}],"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."}