{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.654","julian_year":2026.654,"time":"2026-08-27T17:42:11.500Z","years_from_j2000":26.654,"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":"cursa","name":"Cursa","class":"a3iv_white_subgiant","category":"star","object_type":"A3IV white subgiant","mag":2.78,"mag_band":"V","abs_mag":0.591,"abs_mag_band":"V","distance_ly":89.35804127218935,"distance_method":"parallax","ra_deg":76.962435,"dec_deg":-5.086446,"epoch_ra_deg":77.292881,"epoch_dec_deg":-5.051457,"epoch_moved_arcsec":2.997,"pm_ra_mas_yr":-83.39,"pm_dec_mas_yr":-75.44,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Eridanus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/cursa","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05078-0505","companions":[{"measured":2011,"magnitude":10.9,"components":"AB","discoverer_code":"BUP  74","separation_arcsec":118.3,"position_angle_deg":138},{"measured":2000,"magnitude":12.89,"components":"AC","discoverer_code":"DRS  41","separation_arcsec":204.6,"position_angle_deg":192}],"spectral_type":"A3IV","color_index_bv":0.161,"luminosity_solar":50.53589947531675,"radial_velocity_km_s":-9.2,"spectral_type_source":"SIMBAD (2003AJ....126.2048G, quality C)","proper_motion_ra_mas_yr":-83.39,"proper_motion_dec_mas_yr":-75.44},"designations":[{"catalog":"Bayer/Flamsteed","designation":"67 Beta Eri"},{"catalog":"Common name","designation":"Cursa"},{"catalog":"Gliese","designation":"GJ 9175"},{"catalog":"HD","designation":"HD 33111"},{"catalog":"HIP","designation":"HIP 23875"},{"catalog":"HR","designation":"HR 1666"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-27T16:03:54.983Z","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."}