{"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":"2026-09-02T21:40:26.462Z","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-43705","name":"HD 43705","class":"f5_yellow_white_star","category":"star","object_type":"F5 yellow-white star","mag":8.01,"mag_band":"V","abs_mag":3.479,"abs_mag_band":"V","distance_ly":262.8174614769073,"distance_method":"parallax","ra_deg":94.523175,"dec_deg":9.320913,"epoch_ra_deg":94.891648,"epoch_dec_deg":9.310848,"epoch_moved_arcsec":0.335,"pm_ra_mas_yr":-2.8,"pm_dec_mas_yr":-12.25,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Orion","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-43705","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"06181+0919","age_years":988685800,"companions":[{"measured":2016,"magnitude":11.32,"components":"AB","discoverer_code":"HO   24","separation_arcsec":4,"position_angle_deg":157},{"measured":2015,"magnitude":13.9,"components":"AC","discoverer_code":"HO   24","separation_arcsec":24.2,"position_angle_deg":232},{"measured":2015,"magnitude":13.21,"components":"AD","discoverer_code":"HO   24","separation_arcsec":30.7,"position_angle_deg":354},{"measured":2015,"magnitude":13.6,"components":"AE","discoverer_code":"OPI  10","separation_arcsec":45.9,"position_angle_deg":15}],"mass_solar":1.463,"radius_solar":1.549,"spectral_type":"F5","color_index_bv":0.387,"luminosity_solar":3.5350861336199695,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1993yCat.3135....0C, quality E)","surface_gravity_log_g":4.162,"surface_temperature_k":7068,"proper_motion_ra_mas_yr":-2.8,"proper_motion_dec_mas_yr":-12.25,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) — low confidence: Gaia's classifier calls the source a binary, which GSP-Phot fitted as one star","bolometric_luminosity_solar":5.3113},"designations":[{"catalog":"HD","designation":"HD 43705"},{"catalog":"HIP","designation":"HIP 29930"}],"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."}