{"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":"2026-09-02T22:10:09.297Z","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-213892","name":"HD 213892","class":"a0v_a_f_white_main_sequence_star","category":"star","object_type":"A0V+A/F white main-sequence star","mag":7.55,"mag_band":"V","abs_mag":2.8,"abs_mag_band":"V","distance_ly":290.69209014209105,"distance_method":"parallax","ra_deg":338.63163,"dec_deg":4.22239,"epoch_ra_deg":338.971586,"epoch_dec_deg":4.360925,"epoch_moved_arcsec":0.528,"pm_ra_mas_yr":19.8,"pm_dec_mas_yr":0.25,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Pegasus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-213892","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"22345+0413","companions":[{"measured":2024,"magnitude":8.85,"components":"AB","discoverer_code":"STF2920","separation_arcsec":13.6,"position_angle_deg":143},{"measured":2014,"magnitude":13.4,"components":"AC","discoverer_code":"STF2920","separation_arcsec":15.2,"position_angle_deg":60}],"spectral_type":"A0V+A/F","color_index_bv":0.024,"luminosity_solar":6.606934480075959,"variable_mag_max":7.51,"variable_mag_min":7.65,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1999MSS...C05....0H, quality C)","proper_motion_ra_mas_yr":19.8,"proper_motion_dec_mas_yr":0.25},"designations":[{"catalog":"HD","designation":"HD 213892"},{"catalog":"HIP","designation":"HIP 111433"}],"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."}