{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.669","julian_year":2026.669,"time":"2026-09-02T08:48:02.823Z","years_from_j2000":26.669,"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-124694","name":"HD 124694","class":"f8v_yellow_white_main_sequence_star","category":"star","object_type":"F8V yellow-white main-sequence star","mag":7.17,"mag_band":"V","abs_mag":4.303,"abs_mag_band":"V","distance_ly":122.110338566127,"distance_method":"parallax","ra_deg":213.46401,"dec_deg":46.325167,"epoch_ra_deg":213.722089,"epoch_dec_deg":46.199452,"epoch_moved_arcsec":3.762,"pm_ra_mas_yr":-140.74,"pm_dec_mas_yr":9.48,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Boötes","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-124694","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"14139+4620","age_years":2924233400,"companions":[{"measured":2017,"magnitude":13.14,"components":null,"discoverer_code":"RED  24","separation_arcsec":83.4,"position_angle_deg":215}],"mass_solar":1.123,"radius_solar":1.168,"spectral_type":"F8V","uncertainties":{"metallicity_fe_h":[0.02,0.02]},"color_index_bv":0.53,"luminosity_solar":1.6550076287699895,"metallicity_fe_h":0.02,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (2003AJ....126.2048G, quality C)","surface_gravity_log_g":4.271,"surface_temperature_k":6115,"metallicity_fe_h_source":"Median of 2 spectroscopic determinations in 3 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","proper_motion_ra_mas_yr":-140.74,"proper_motion_dec_mas_yr":9.48,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":1.7068},"designations":[{"catalog":"HD","designation":"HD 124694"},{"catalog":"HIP","designation":"HIP 69518"}],"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."}