{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T16:27:39.098Z","years_from_j2000":26.684,"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-146667","name":"λ Nor","class":"a3v_white_main_sequence_star","category":"star","object_type":"A3V white main-sequence star","mag":5.44,"mag_band":"V","abs_mag":0.294,"abs_mag_band":"V","distance_ly":348.8304429392337,"distance_method":"parallax","ra_deg":244.82351999999997,"dec_deg":-42.673965,"epoch_ra_deg":245.29214,"epoch_dec_deg":-42.739209,"epoch_moved_arcsec":0.326,"pm_ra_mas_yr":6.62,"pm_dec_mas_yr":-10.28,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Norma","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-146667","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"16193-4240","companions":[{"measured":2025,"magnitude":6.86,"components":null,"discoverer_code":"SEE 271","separation_arcsec":0.4,"position_angle_deg":125}],"spectral_type":"A3V","color_index_bv":0.099,"luminosity_solar":66.43546819760057,"radial_velocity_km_s":-15,"spectral_type_source":"SIMBAD (1978MSS...C02....0H, quality C)","proper_motion_ra_mas_yr":6.62,"proper_motion_dec_mas_yr":-10.28},"designations":[{"catalog":"Bayer/Flamsteed","designation":"Lambda Nor"},{"catalog":"HD","designation":"HD 146667"},{"catalog":"HIP","designation":"HIP 79963"},{"catalog":"HR","designation":"HR 6071"}],"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."}