{"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":"2026-09-05T23:05:46.836Z","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":"hip-68732","name":"HIP 68732","class":"k4_orange_star","category":"star","object_type":"K4 orange star","mag":10.18,"mag_band":"V","abs_mag":7.355,"abs_mag_band":"V","distance_ly":119.7783204654523,"distance_method":"parallax","ra_deg":211.04166,"dec_deg":20.759128,"epoch_ra_deg":211.356297,"epoch_dec_deg":20.629894,"epoch_moved_arcsec":3.455,"pm_ra_mas_yr":-128.29,"pm_dec_mas_yr":-17.59,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Boötes","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-68732","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"14042+2046","age_years":9304259000,"companions":[{"measured":2021,"magnitude":11.61,"components":"A,BC","discoverer_code":"J  1128","separation_arcsec":62.7,"position_angle_deg":190}],"mass_solar":0.715,"radius_solar":0.701,"spectral_type":"K4","color_index_bv":1.07,"luminosity_solar":0.09954054173515259,"variable_mag_max":10.127,"variable_mag_min":10.237,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1986AJ.....91..144S, quality D)","surface_gravity_log_g":4.6,"surface_temperature_k":4490,"proper_motion_ra_mas_yr":-128.29,"proper_motion_dec_mas_yr":-17.59,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":0.1827},"designations":[{"catalog":"HIP","designation":"HIP 68732"}],"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."}