{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T17:41:43.219Z","years_from_j2000":26.67,"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":"hip-87773","name":"HIP 87773","class":"k6v_orange_dwarf","category":"star","object_type":"K6V orange dwarf","mag":10.16,"mag_band":"V","abs_mag":8.137,"abs_mag_band":"V","distance_ly":82.80197192370508,"distance_method":"parallax","ra_deg":268.958475,"dec_deg":33.420637,"epoch_ra_deg":269.203998,"epoch_dec_deg":33.414196,"epoch_moved_arcsec":6.275,"pm_ra_mas_yr":10.19,"pm_dec_mas_yr":-235.06,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Hercules","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-87773","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"17559+3326","companions":[{"measured":2016,"magnitude":14.4,"components":"AC","discoverer_code":"HO   72","separation_arcsec":10.6,"position_angle_deg":37},{"measured":2015,"magnitude":12.9,"components":"AB","discoverer_code":"HO   72","separation_arcsec":33.4,"position_angle_deg":359},{"measured":2002,"magnitude":13.2,"components":"AD","discoverer_code":"HO   72","separation_arcsec":153.4,"position_angle_deg":45}],"spectral_type":"K6V","color_index_bv":1.185,"luminosity_solar":0.048439538854783984,"variable_mag_max":10.085,"variable_mag_min":10.215,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (2003AJ....126.2048G, quality C)","proper_motion_ra_mas_yr":10.19,"proper_motion_dec_mas_yr":-235.06},"designations":[{"catalog":"HIP","designation":"HIP 87773"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-01T22:58:55.274Z","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."}