{"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":"2026-09-01T02:57:36.140Z","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":"corot-2","name":"CoRoT-2","class":"star","category":"star","object_type":null,"mag":12.516,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":695.6361070856018,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":291.7770457,"dec_deg":1.3836634,"epoch_ra_deg":292.117587,"epoch_dec_deg":1.437373,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Aquila","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/corot-2","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"19271+0123","companions":[{"measured":2016,"magnitude":15.7,"components":"AB","discoverer_code":"WOL   5","separation_arcsec":4.1,"position_angle_deg":209},{"measured":2016,"magnitude":21.6,"components":"AC","discoverer_code":"CRT   2","separation_arcsec":6.4,"position_angle_deg":59},{"measured":2016,"magnitude":19.5,"components":"AD","discoverer_code":"CRT   2","separation_arcsec":7.7,"position_angle_deg":310},{"measured":2016,"magnitude":21.3,"components":"AE","discoverer_code":"CRT   2","separation_arcsec":9.8,"position_angle_deg":28},{"measured":2016,"magnitude":17,"components":"AF","discoverer_code":"CRT   2","separation_arcsec":9.9,"position_angle_deg":163},{"measured":2016,"magnitude":19.8,"components":"AG","discoverer_code":"CRT   2","separation_arcsec":10.7,"position_angle_deg":345},{"measured":2016,"magnitude":18.6,"components":"AH","discoverer_code":"CRT   2","separation_arcsec":10.9,"position_angle_deg":356},{"measured":2016,"magnitude":19.3,"components":"AI","discoverer_code":"CRT   2","separation_arcsec":11.3,"position_angle_deg":300},{"measured":2016,"magnitude":20.7,"components":"AJ","discoverer_code":"CRT   2","separation_arcsec":11.4,"position_angle_deg":10},{"measured":2016,"magnitude":18.5,"components":"AK","discoverer_code":"CRT   2","separation_arcsec":11.6,"position_angle_deg":81},{"measured":2016,"magnitude":18.4,"components":"AL","discoverer_code":"CRT   2","separation_arcsec":11.7,"position_angle_deg":250},{"measured":2016,"magnitude":21.1,"components":"AM","discoverer_code":"CRT   2","separation_arcsec":12.5,"position_angle_deg":237},{"measured":2016,"magnitude":22.1,"components":"A,Xa","discoverer_code":"CRT   2","separation_arcsec":12.5,"position_angle_deg":201},{"measured":2016,"magnitude":16.9,"components":"AN","discoverer_code":"CRT   2","separation_arcsec":13.1,"position_angle_deg":132},{"measured":2016,"magnitude":18.8,"components":"AO","discoverer_code":"CRT   2","separation_arcsec":13.1,"position_angle_deg":72},{"measured":2016,"magnitude":20.9,"components":"AP","discoverer_code":"CRT   2","separation_arcsec":13.4,"position_angle_deg":84},{"measured":2016,"magnitude":21.1,"components":"A,Xb","discoverer_code":"CRT   2","separation_arcsec":13.5,"position_angle_deg":163},{"measured":2016,"magnitude":17.2,"components":"AQ","discoverer_code":"CRT   2","separation_arcsec":14,"position_angle_deg":221},{"measured":2016,"magnitude":19.7,"components":"AR","discoverer_code":"CRT   2","separation_arcsec":14.1,"position_angle_deg":38},{"measured":2016,"magnitude":21.4,"components":"A,Xc","discoverer_code":"CRT   2","separation_arcsec":14.3,"position_angle_deg":190},{"measured":2016,"magnitude":20.2,"components":"AS","discoverer_code":"CRT   2","separation_arcsec":14.9,"position_angle_deg":255},{"measured":2016,"magnitude":22,"components":"A,Xd","discoverer_code":"CRT   2","separation_arcsec":14.9,"position_angle_deg":235},{"measured":2016,"magnitude":20.7,"components":"AT","discoverer_code":"CRT   2","separation_arcsec":15.1,"position_angle_deg":262},{"measured":2016,"magnitude":20.8,"components":"AU","discoverer_code":"CRT   2","separation_arcsec":15.2,"position_angle_deg":69},{"measured":2016,"magnitude":20.5,"components":"AV","discoverer_code":"CRT   2","separation_arcsec":16.2,"position_angle_deg":13},{"measured":2016,"magnitude":20,"components":"A,Wa","discoverer_code":"CRT   2","separation_arcsec":16.4,"position_angle_deg":96},{"measured":2016,"magnitude":19.3,"components":"A,Wb","discoverer_code":"CRT   2","separation_arcsec":16.5,"position_angle_deg":144},{"measured":2016,"magnitude":17.9,"components":"A,Wc","discoverer_code":"CRT   2","separation_arcsec":16.7,"position_angle_deg":324},{"measured":2016,"magnitude":20.3,"components":"A,Wd","discoverer_code":"CRT   2","separation_arcsec":16.9,"position_angle_deg":117},{"measured":2016,"magnitude":20.6,"components":"A,We","discoverer_code":"CRT   2","separation_arcsec":17,"position_angle_deg":150},{"measured":2016,"magnitude":19.4,"components":"A,Wf","discoverer_code":"CRT   2","separation_arcsec":17.8,"position_angle_deg":136},{"measured":2016,"magnitude":20.5,"components":"A,Wg","discoverer_code":"CRT   2","separation_arcsec":18.2,"position_angle_deg":37},{"measured":2016,"magnitude":22.1,"components":"A,Xe","discoverer_code":"CRT   2","separation_arcsec":18.5,"position_angle_deg":310},{"measured":2016,"magnitude":17.3,"components":"A,Wh","discoverer_code":"CRT   2","separation_arcsec":18.6,"position_angle_deg":277},{"measured":2016,"magnitude":19.3,"components":"A,Wi","discoverer_code":"CRT   2","separation_arcsec":18.6,"position_angle_deg":65},{"measured":2016,"magnitude":19.7,"components":"A,Wj","discoverer_code":"CRT   2","separation_arcsec":18.7,"position_angle_deg":106},{"measured":2016,"magnitude":20.7,"components":"A,Wk","discoverer_code":"CRT   2","separation_arcsec":18.8,"position_angle_deg":265},{"measured":2016,"magnitude":15.5,"components":"A,Wl","discoverer_code":"CRT   2","separation_arcsec":19,"position_angle_deg":304},{"measured":2016,"magnitude":20.7,"components":"A,Wm","discoverer_code":"CRT   2","separation_arcsec":19.5,"position_angle_deg":21},{"measured":2016,"magnitude":21.1,"components":"A,Xf","discoverer_code":"CRT   2","separation_arcsec":19.6,"position_angle_deg":208},{"measured":2016,"magnitude":21.7,"components":"A,Xg","discoverer_code":"CRT   2","separation_arcsec":19.7,"position_angle_deg":137},{"measured":2016,"magnitude":20.6,"components":"A,Wn","discoverer_code":"CRT   2","separation_arcsec":19.8,"position_angle_deg":26},{"measured":2016,"magnitude":20.8,"components":"A,Wo","discoverer_code":"CRT   2","separation_arcsec":20,"position_angle_deg":96},{"measured":2016,"magnitude":20.8,"components":"A,Xh","discoverer_code":"CRT   2","separation_arcsec":20.3,"position_angle_deg":70},{"measured":2016,"magnitude":18,"components":"A,Xi","discoverer_code":"CRT   2","separation_arcsec":20.6,"position_angle_deg":246},{"measured":2016,"magnitude":20.3,"components":"A,Xj","discoverer_code":"CRT   2","separation_arcsec":20.9,"position_angle_deg":73},{"measured":2016,"magnitude":20.2,"components":"A,Xk","discoverer_code":"CRT   2","separation_arcsec":21.1,"position_angle_deg":301},{"measured":2016,"magnitude":22.1,"components":"A,Xl","discoverer_code":"CRT   2","separation_arcsec":21.1,"position_angle_deg":102},{"measured":2016,"magnitude":18.1,"components":"A,Xm","discoverer_code":"CRT   2","separation_arcsec":21.2,"position_angle_deg":231},{"measured":2016,"magnitude":18.8,"components":"A,Xn","discoverer_code":"CRT   2","separation_arcsec":21.2,"position_angle_deg":16},{"measured":2016,"magnitude":22.1,"components":"A,Xo","discoverer_code":"CRT   2","separation_arcsec":21.3,"position_angle_deg":85},{"measured":2016,"magnitude":17.2,"components":"A,Xp","discoverer_code":"CRT   2","separation_arcsec":22,"position_angle_deg":32},{"measured":2016,"magnitude":19.8,"components":"A,Xq","discoverer_code":"CRT   2","separation_arcsec":22.3,"position_angle_deg":101},{"measured":2016,"magnitude":19.5,"components":"A,Xr","discoverer_code":"CRT   2","separation_arcsec":22.5,"position_angle_deg":87},{"measured":2016,"magnitude":20.8,"components":"A,Xs","discoverer_code":"CRT   2","separation_arcsec":23.3,"position_angle_deg":111},{"measured":2016,"magnitude":22.2,"components":"A,Xt","discoverer_code":"CRT   2","separation_arcsec":23.3,"position_angle_deg":127},{"measured":2016,"magnitude":21.3,"components":"A,Xu","discoverer_code":"CRT   2","separation_arcsec":23.6,"position_angle_deg":224},{"measured":2016,"magnitude":17.3,"components":"A,Xv","discoverer_code":"CRT   2","separation_arcsec":24.3,"position_angle_deg":207},{"measured":2016,"magnitude":21.1,"components":"A,Ya","discoverer_code":"CRT   2","separation_arcsec":25.2,"position_angle_deg":51},{"measured":2016,"magnitude":18.7,"components":"A,Yb","discoverer_code":"CRT   2","separation_arcsec":25.3,"position_angle_deg":120},{"measured":2016,"magnitude":19.2,"components":"A,Yc","discoverer_code":"CRT   2","separation_arcsec":25.8,"position_angle_deg":309},{"measured":2016,"magnitude":21.1,"components":"A,Yd","discoverer_code":"CRT   2","separation_arcsec":27,"position_angle_deg":221},{"measured":2016,"magnitude":21,"components":"A,Ye","discoverer_code":"CRT   2","separation_arcsec":27,"position_angle_deg":223},{"measured":2016,"magnitude":19.4,"components":"A,Yf","discoverer_code":"CRT   2","separation_arcsec":27.5,"position_angle_deg":314},{"measured":2016,"magnitude":20.6,"components":"A,Yg","discoverer_code":"CRT   2","separation_arcsec":28.4,"position_angle_deg":312}],"mass_solar":0.96,"radius_solar":0.906,"uncertainties":{"metallicity_fe_h":[0.06,0.06]},"stars_in_system":2,"metallicity_fe_h":-0.04,"planets_in_system":1,"surface_gravity_log_g":4.51,"surface_temperature_k":5625,"metallicity_fe_h_source":"Median of 3 spectroscopic determinations in 3 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","stellar_parameters_method":"NASA Exoplanet Archive composite parameters"},"designations":[],"source":{"id":"exoplanet_archive","name":"NASA Exoplanet Archive (Planetary Systems Composite Parameters)","url":"https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars","license":"Public domain (NASA)"},"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."}