{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-01T22:30:02.266Z","years_from_j2000":26.668,"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":"wasp-19","name":"WASP-19","class":"g8_v_yellow_star","category":"star","object_type":"G8 V yellow star","mag":12.248,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":875.1591005084517,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":148.4167672,"dec_deg":-45.6591078,"epoch_ra_deg":148.678758,"epoch_dec_deg":-45.785408,"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":"Vela","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/wasp-19","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"09537-4540","companions":[{"measured":2016,"magnitude":21.1,"components":"A,Wf","discoverer_code":"WSP  19","separation_arcsec":8.3,"position_angle_deg":175},{"measured":2016,"magnitude":20,"components":"AB","discoverer_code":"WSP  19","separation_arcsec":9,"position_angle_deg":345},{"measured":2015,"magnitude":20.6,"components":"AC","discoverer_code":"WSP  19","separation_arcsec":9.1,"position_angle_deg":136},{"measured":2016,"magnitude":20.8,"components":"AR","discoverer_code":"WSP  19","separation_arcsec":9.2,"position_angle_deg":136},{"measured":2016,"magnitude":20.2,"components":"AD","discoverer_code":"WSP  19","separation_arcsec":10,"position_angle_deg":359},{"measured":2016,"magnitude":19.8,"components":"AE","discoverer_code":"WSP  19","separation_arcsec":11.4,"position_angle_deg":303},{"measured":2016,"magnitude":19.1,"components":"AF","discoverer_code":"WSP  19","separation_arcsec":12.5,"position_angle_deg":70},{"measured":2016,"magnitude":18.2,"components":"AG","discoverer_code":"WSP  19","separation_arcsec":13.5,"position_angle_deg":343},{"measured":2016,"magnitude":19.4,"components":"AH","discoverer_code":"WSP  19","separation_arcsec":14.6,"position_angle_deg":299},{"measured":2016,"magnitude":20.6,"components":"AS","discoverer_code":"WSP  19","separation_arcsec":14.7,"position_angle_deg":43},{"measured":2016,"magnitude":20.7,"components":"AI","discoverer_code":"WSP  19","separation_arcsec":15.5,"position_angle_deg":103},{"measured":2016,"magnitude":19,"components":"AJ","discoverer_code":"WSP  19","separation_arcsec":16.2,"position_angle_deg":309},{"measured":2016,"magnitude":20,"components":"AK","discoverer_code":"WSP  19","separation_arcsec":17.1,"position_angle_deg":204},{"measured":2016,"magnitude":18.6,"components":"AL","discoverer_code":"WSP  19","separation_arcsec":17.2,"position_angle_deg":151},{"measured":2016,"magnitude":19.9,"components":"AM","discoverer_code":"WSP  19","separation_arcsec":18.4,"position_angle_deg":145},{"measured":2016,"magnitude":20.2,"components":"AN","discoverer_code":"WSP  19","separation_arcsec":18.5,"position_angle_deg":304},{"measured":2016,"magnitude":19,"components":"AP","discoverer_code":"WSP  19","separation_arcsec":18.6,"position_angle_deg":263},{"measured":2016,"magnitude":20.1,"components":"AO","discoverer_code":"WSP  19","separation_arcsec":18.7,"position_angle_deg":104},{"measured":2016,"magnitude":19.8,"components":"AQ","discoverer_code":"WSP  19","separation_arcsec":19.4,"position_angle_deg":358},{"measured":2016,"magnitude":20.4,"components":"AT","discoverer_code":"WSP  19","separation_arcsec":20.2,"position_angle_deg":48},{"measured":2016,"magnitude":19.4,"components":"AU","discoverer_code":"WSP  19","separation_arcsec":20.2,"position_angle_deg":14},{"measured":2016,"magnitude":20.3,"components":"AV","discoverer_code":"WSP  19","separation_arcsec":20.5,"position_angle_deg":295},{"measured":2016,"magnitude":16,"components":"A,Wa","discoverer_code":"WSP  19","separation_arcsec":21.6,"position_angle_deg":262},{"measured":2015,"magnitude":20.5,"components":"A,Wb","discoverer_code":"WSP  19","separation_arcsec":21.7,"position_angle_deg":353},{"measured":2016,"magnitude":19.7,"components":"A,Wc","discoverer_code":"WSP  19","separation_arcsec":22.1,"position_angle_deg":242},{"measured":2016,"magnitude":19.6,"components":"A,Wd","discoverer_code":"WSP  19","separation_arcsec":22.4,"position_angle_deg":269},{"measured":2016,"magnitude":19.8,"components":"A,We","discoverer_code":"WSP  19","separation_arcsec":28.8,"position_angle_deg":312}],"mass_solar":0.965,"radius_solar":1.006,"spectral_type":"G8 V","uncertainties":{"metallicity_fe_h":[0.057,0.057]},"stars_in_system":1,"metallicity_fe_h":0.185,"planets_in_system":1,"surface_gravity_log_g":4.45,"surface_temperature_k":5616,"metallicity_fe_h_source":"Median of 4 spectroscopic determinations in 4 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."}