{"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":"2026-09-03T16:23:33.203Z","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":"hd-105702","name":"11 Vir","class":"kf0hf0mf5ii_iii_yellow_white_bright_giant","category":"star","object_type":"kF0hF0mF5II-III yellow-white bright giant","mag":5.72,"mag_band":"V","abs_mag":2.5,"abs_mag_band":"V","distance_ly":143.68134291917926,"distance_method":"parallax","ra_deg":182.51424,"dec_deg":5.807008,"epoch_ra_deg":182.856635,"epoch_dec_deg":5.657707,"epoch_moved_arcsec":4.289,"pm_ra_mas_yr":-159.75,"pm_dec_mas_yr":18.33,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Virgo","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-105702","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"12100+0549","age_years":1382340300,"companions":[{"measured":2016,"magnitude":16.8,"components":null,"discoverer_code":"LDS4185","separation_arcsec":66.2,"position_angle_deg":304}],"mass_solar":1.597,"radius_solar":1.959,"spectral_type":"kF0hF0mF5II-III","color_index_bv":0.352,"luminosity_solar":8.709635899560805,"radial_velocity_km_s":-9,"spectral_type_source":"SIMBAD (2020AJ....160...52M, quality D)","surface_gravity_log_g":4.06,"surface_temperature_k":7073,"proper_motion_ra_mas_yr":-159.75,"proper_motion_dec_mas_yr":18.33,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":8.6859},"designations":[{"catalog":"Bayer/Flamsteed","designation":"11 Vir"},{"catalog":"HD","designation":"HD 105702"},{"catalog":"HIP","designation":"HIP 59309"},{"catalog":"HR","designation":"HR 4629"}],"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."}