{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.664","julian_year":2026.664,"time":"2026-08-31T08:43:52.634Z","years_from_j2000":26.664,"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":"dalim","name":"Dalim","class":"f6v_yellow_white_main_sequence_star","category":"star","object_type":"F6V yellow-white main-sequence star","mag":3.8,"mag_band":"V","abs_mag":3.033,"abs_mag_band":"V","distance_ly":46.43455733915504,"distance_method":"parallax","ra_deg":48.018735,"dec_deg":-28.987618,"epoch_ra_deg":48.305153,"epoch_dec_deg":-28.881664,"epoch_moved_arcsec":19.095,"pm_ra_mas_yr":371.49,"pm_dec_mas_yr":612.26,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Fornax","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/dalim","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"03121-2859","companions":[{"measured":2017,"magnitude":7.19,"components":null,"discoverer_code":"HJ 3555","separation_arcsec":5.4,"position_angle_deg":301}],"spectral_type":"F6V","uncertainties":{"metallicity_fe_h":[0.067,0.067]},"color_index_bv":0.543,"luminosity_solar":5.330893422367013,"metallicity_fe_h":-0.22,"radial_velocity_km_s":-20,"spectral_type_source":"SIMBAD (1984ApJS...55..657C, quality C)","surface_gravity_log_g":4.07,"surface_temperature_k":6186,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":371.49,"proper_motion_dec_mas_yr":612.26,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Bayer/Flamsteed","designation":"Alpha For"},{"catalog":"Common name","designation":"Dalim"},{"catalog":"Gliese","designation":"Gl 127A"},{"catalog":"HD","designation":"HD 20010"},{"catalog":"HIP","designation":"HIP 14879"},{"catalog":"HR","designation":"HR 963"}],"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."}