{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.666","julian_year":2026.666,"time":"2026-09-01T08:23:57.072Z","years_from_j2000":26.666,"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":"sargas","name":"Sargas","class":"f1iii_yellow_white_giant","category":"star","object_type":"F1III yellow-white giant","mag":1.86,"mag_band":"V","abs_mag":-2.961,"abs_mag_band":"V","distance_ly":300.3280541653545,"distance_method":"parallax","ra_deg":264.3297,"dec_deg":-42.997824,"epoch_ra_deg":264.812316,"epoch_dec_deg":-43.014278,"epoch_moved_arcsec":0.164,"pm_ra_mas_yr":6.06,"pm_dec_mas_yr":-0.95,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Scorpius","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/sargas","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"17373-4300","companions":[{"measured":2024,"magnitude":5.3,"components":"Aa,Ab","discoverer_code":"SEE 510","separation_arcsec":0.3,"position_angle_deg":97},{"measured":1991,"magnitude":5.36,"components":"AB","discoverer_code":"SEE 510","separation_arcsec":6.5,"position_angle_deg":315}],"spectral_type":"F1III","color_index_bv":0.406,"luminosity_solar":1331.6803762699813,"radial_velocity_km_s":1,"spectral_type_source":"SIMBAD (1989ApJS...69..301G, quality C)","proper_motion_ra_mas_yr":6.06,"proper_motion_dec_mas_yr":-0.95},"designations":[{"catalog":"Bayer/Flamsteed","designation":"Theta Sco"},{"catalog":"Common name","designation":"Sargas"},{"catalog":"HD","designation":"HD 159532"},{"catalog":"HIP","designation":"HIP 86228"},{"catalog":"HR","designation":"HR 6553"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}