{"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":"2026-09-01T07:26:19.502Z","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":"hd-64468","name":"HD 64468","class":"k2_5v_orange_dwarf","category":"star","object_type":"K2.5V orange dwarf","mag":7.76,"mag_band":"V","abs_mag":6.181,"abs_mag_band":"V","distance_ly":67.4853422697491,"distance_method":"parallax","ra_deg":118.72527,"dec_deg":19.23634,"epoch_ra_deg":119.11592,"epoch_dec_deg":19.162722,"epoch_moved_arcsec":12.371,"pm_ra_mas_yr":92.95,"pm_dec_mas_yr":-454.52,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Gemini","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-64468","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"07549+1914","companions":[{"measured":2018,"magnitude":16.5,"components":"AE","discoverer_code":"HLA   8","separation_arcsec":4.7,"position_angle_deg":358},{"measured":2016,"magnitude":10.2,"components":"AD","discoverer_code":"BUP 109","separation_arcsec":80.1,"position_angle_deg":9},{"measured":2016,"magnitude":10.78,"components":"AB","discoverer_code":"ENG  33","separation_arcsec":98.5,"position_angle_deg":286},{"measured":2016,"magnitude":10.63,"components":"AC","discoverer_code":"ENG  33","separation_arcsec":126.2,"position_angle_deg":63}],"spectral_type":"K2.5V","uncertainties":{"metallicity_fe_h":[0.133,0.133]},"color_index_bv":0.95,"luminosity_solar":0.29349452222697914,"metallicity_fe_h":0.035,"radial_velocity_km_s":-18.7,"spectral_type_source":"SIMBAD (2010MNRAS.403.1949K, quality C)","surface_gravity_log_g":4.33,"surface_temperature_k":4975,"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","proper_motion_ra_mas_yr":92.95,"proper_motion_dec_mas_yr":-454.52,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Gliese","designation":"Gl 292.1"},{"catalog":"HD","designation":"HD 64468"},{"catalog":"HIP","designation":"HIP 38657"}],"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."}