{"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":"2026-08-31T22:27:25.216Z","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-6869","name":"HD 6869","class":"f0v_yellow_white_main_sequence_star","category":"star","object_type":"F0V yellow-white main-sequence star","mag":6.89,"mag_band":"V","abs_mag":2.313,"abs_mag_band":"V","distance_ly":268.4413758978771,"distance_method":"parallax","ra_deg":17.14095,"dec_deg":-46.667982,"epoch_ra_deg":17.440498,"epoch_dec_deg":-46.524415,"epoch_moved_arcsec":0.798,"pm_ra_mas_yr":18.54,"pm_dec_mas_yr":23.5,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Phoenix","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-6869","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"01086-4640","age_years":955179600,"companions":[{"measured":2016,"magnitude":8.67,"components":"AB","discoverer_code":"SLR   2","separation_arcsec":1.3,"position_angle_deg":180},{"measured":2015,"magnitude":12.8,"components":"AB,C","discoverer_code":"SLR   2","separation_arcsec":42.5,"position_angle_deg":87}],"mass_solar":1.584,"radius_solar":1.754,"spectral_type":"F0V","color_index_bv":0.292,"luminosity_solar":10.34665575842437,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (2006A&A...460..695T, quality C)","surface_gravity_log_g":3.95,"surface_temperature_k":7402,"proper_motion_ra_mas_yr":18.54,"proper_motion_dec_mas_yr":23.5,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":7.6502},"designations":[{"catalog":"HIP","designation":"HIP 5363"}],"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."}