{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.665","julian_year":2026.665,"time":"2026-09-01T01:25:49.883Z","years_from_j2000":26.665,"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-33802","name":"3 ι Lep","class":"b7_5vn_blue_white_main_sequence_star","category":"star","object_type":"B7.5Vn blue-white main-sequence star","mag":4.45,"mag_band":"V","abs_mag":0.191,"abs_mag_band":"V","distance_ly":231.80977464737649,"distance_method":"parallax","ra_deg":78.074595,"dec_deg":-11.869219,"epoch_ra_deg":78.38815,"epoch_dec_deg":-11.836696,"epoch_moved_arcsec":1.066,"pm_ra_mas_yr":24.95,"pm_dec_mas_yr":-31.22,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Lepus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-33802","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05123-1152","companions":[{"measured":1999,"magnitude":7.22,"components":"Aa,Ab","discoverer_code":"HUB   6","separation_arcsec":0.4,"position_angle_deg":23},{"measured":2015,"magnitude":9.92,"components":"AB","discoverer_code":"STF 655","separation_arcsec":11.9,"position_angle_deg":337}],"spectral_type":"B7.5Vn","color_index_bv":-0.099,"luminosity_solar":73.04659895204111,"radial_velocity_km_s":25,"spectral_type_source":"SIMBAD (1994AJ....107.1556G, quality C)","surface_temperature_k":12618,"proper_motion_ra_mas_yr":24.95,"proper_motion_dec_mas_yr":-31.22,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Bayer/Flamsteed","designation":"3 Iota Lep"},{"catalog":"HD","designation":"HD 33802"},{"catalog":"HIP","designation":"HIP 24244"},{"catalog":"HR","designation":"HR 1696"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}