{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.665","julian_year":2026.665,"time":"2026-08-31T22:47:20.910Z","years_from_j2000":26.665,"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":"hd-219962","name":"HD 219962","class":"k2iii_orange_giant","category":"star","object_type":"K2III orange giant","mag":6.29,"mag_band":"V","abs_mag":0.988,"abs_mag_band":"V","distance_ly":374.8922944570678,"distance_method":"parallax","ra_deg":349.922895,"dec_deg":48.380935,"epoch_ra_deg":350.237537,"epoch_dec_deg":48.527989,"epoch_moved_arcsec":5.56,"pm_ra_mas_yr":206.18,"pm_dec_mas_yr":31.11,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Andromeda","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-219962","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"23197+4823","age_years":2737028800,"companions":[{"measured":2009,"magnitude":10.15,"components":"AB","discoverer_code":"STTA244","separation_arcsec":100.6,"position_angle_deg":293},{"measured":2015,"magnitude":11.5,"components":"AC","discoverer_code":"STTA244","separation_arcsec":118.9,"position_angle_deg":108}],"mass_solar":1.522,"radius_solar":11.702,"spectral_type":"K2III","uncertainties":{"metallicity_fe_h":[0.1,0.1]},"color_index_bv":1.123,"luminosity_solar":35.05903839326127,"metallicity_fe_h":0.02,"radial_velocity_km_s":23,"spectral_type_source":"SIMBAD (1955ApJS....2..195R, quality C)","surface_gravity_log_g":2.407,"surface_temperature_k":4614,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":206.18,"proper_motion_dec_mas_yr":31.11,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":55.8142},"designations":[{"catalog":"HD","designation":"HD 219962"},{"catalog":"HIP","designation":"HIP 115171"},{"catalog":"HR","designation":"HR 8875"}],"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."}