{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.674","julian_year":2026.674,"time":"2026-09-04T00:12:29.314Z","years_from_j2000":26.674,"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-112097","name":"41 Vir","class":"ka7hf0mf0_v_yellow_white_main_sequence_star","category":"star","object_type":"kA7hF0mF0(V) yellow-white main-sequence star","mag":6.25,"mag_band":"V","abs_mag":2.327,"abs_mag_band":"V","distance_ly":198.63347406240706,"distance_method":"parallax","ra_deg":193.45713,"dec_deg":12.418416,"epoch_ra_deg":193.794463,"epoch_dec_deg":12.272323,"epoch_moved_arcsec":1.932,"pm_ra_mas_yr":63.35,"pm_dec_mas_yr":-35.13,"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-112097","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"spectral_type":"kA7hF0mF0(V)","color_index_bv":0.282,"luminosity_solar":10.214097519898491,"radial_velocity_km_s":-10,"spectral_type_source":"SIMBAD (2001AJ....121.2148G, quality C)","proper_motion_ra_mas_yr":63.35,"proper_motion_dec_mas_yr":-35.13},"designations":[{"catalog":"Bayer/Flamsteed","designation":"41 Vir"},{"catalog":"HD","designation":"HD 112097"},{"catalog":"HIP","designation":"HIP 62933"},{"catalog":"HR","designation":"HR 4900"}],"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."}