{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.671","julian_year":2026.671,"time":"2026-09-03T03:39:16.879Z","years_from_j2000":26.671,"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-68771","name":"HD 68771","class":"k2iii_orange_giant","category":"star","object_type":"K2III orange giant","mag":6.58,"mag_band":"V","abs_mag":0.378,"abs_mag_band":"V","distance_ly":567.22834117852,"distance_method":"parallax","ra_deg":124.242,"dec_deg":59.189364,"epoch_ra_deg":124.794442,"epoch_dec_deg":59.106456,"epoch_moved_arcsec":0.346,"pm_ra_mas_yr":2.66,"pm_dec_mas_yr":-12.71,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Lynx","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-68771","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"08170+5911","companions":[{"measured":2015,"magnitude":9.7,"components":"AB","discoverer_code":"STT 565","separation_arcsec":98.5,"position_angle_deg":9},{"measured":2015,"magnitude":8.45,"components":"AC","discoverer_code":"STT 565","separation_arcsec":226.1,"position_angle_deg":308},{"measured":2015,"magnitude":9.72,"components":"AD","discoverer_code":"STT 565","separation_arcsec":238.4,"position_angle_deg":64}],"spectral_type":"K2III","color_index_bv":1.318,"luminosity_solar":61.48936385126264,"radial_velocity_km_s":-28.5,"spectral_type_source":"SIMBAD (1990A&AS...85.1069S, quality C)","proper_motion_ra_mas_yr":2.66,"proper_motion_dec_mas_yr":-12.71},"designations":[{"catalog":"HD","designation":"HD 68771"},{"catalog":"HIP","designation":"HIP 40570"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","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."}