{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T11:40:29.922Z","years_from_j2000":26.667,"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":"wazn","name":"Wazn","class":"k1iii_cn_1_orange_giant","category":"star","object_type":"K1III_CN+1 orange giant","mag":3.12,"mag_band":"V","abs_mag":0.985,"abs_mag_band":"V","distance_ly":87.18420901470725,"distance_method":"parallax","ra_deg":87.739935,"dec_deg":-35.768309,"epoch_ra_deg":87.976923,"epoch_dec_deg":-35.757413,"epoch_moved_arcsec":10.893,"pm_ra_mas_yr":55.74,"pm_dec_mas_yr":404.68,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Columba","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/wazn","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05510-3546","companions":[{"measured":1999,"magnitude":9.76,"components":null,"discoverer_code":"WFC  31","separation_arcsec":126.8,"position_angle_deg":161}],"spectral_type":"K1III_CN+1","uncertainties":{"metallicity_fe_h":[0.076,0.076]},"color_index_bv":1.146,"luminosity_solar":35.15604405282981,"metallicity_fe_h":0.18,"radial_velocity_km_s":89,"spectral_type_source":"SIMBAD (2006AJ....132..161G, quality C)","surface_gravity_log_g":2.8,"surface_temperature_k":4566,"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","proper_motion_ra_mas_yr":55.74,"proper_motion_dec_mas_yr":404.68,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Bayer/Flamsteed","designation":"Beta Col"},{"catalog":"Common name","designation":"Wazn"},{"catalog":"HD","designation":"HD 39425"},{"catalog":"HIP","designation":"HIP 27628"},{"catalog":"HR","designation":"HR 2040"}],"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."}