{"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":"2026-08-31T11:42:50.298Z","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":"jabbah","name":"Jabbah","class":"b2v_blue_white_main_sequence_star","category":"star","object_type":"B2V blue-white main-sequence star","mag":4,"mag_band":"V","abs_mag":-1.812,"abs_mag_band":"V","distance_ly":474.064381134754,"distance_method":"parallax","ra_deg":242.99889000000002,"dec_deg":-19.460708,"epoch_ra_deg":243.389636,"epoch_dec_deg":-19.530368,"epoch_moved_arcsec":0.721,"pm_ra_mas_yr":-9.7,"pm_dec_mas_yr":-25.25,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Scorpius","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/jabbah","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"16120-1928","companions":[{"measured":2023,"magnitude":6.8,"components":"Aa,Ab","discoverer_code":"CHR 146","separation_arcsec":0.1,"position_angle_deg":344},{"measured":2024,"magnitude":5.31,"components":"AB","discoverer_code":"BU  120","separation_arcsec":1.3,"position_angle_deg":2},{"measured":2010,"magnitude":14.02,"components":"AE","discoverer_code":"LAF 127","separation_arcsec":5.3,"position_angle_deg":318},{"measured":2021,"magnitude":6.6,"components":"AC","discoverer_code":"H 5   6","separation_arcsec":41.4,"position_angle_deg":336}],"mass_solar":5.134,"radius_solar":6.879,"spectral_type":"B2V","color_index_bv":0.076,"luminosity_solar":462.16813609224465,"radial_velocity_km_s":2,"spectral_type_source":"SIMBAD (1976A&AS...26..241C, quality C)","surface_gravity_log_g":3.485,"surface_temperature_k":13406,"proper_motion_ra_mas_yr":-9.7,"proper_motion_dec_mas_yr":-25.25,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) — low confidence: above 7,500 K GSP-Phot's temperature and extinction are degenerate","bolometric_luminosity_solar":1264.2911},"designations":[{"catalog":"Bayer/Flamsteed","designation":"14 Nu Sco"},{"catalog":"Common name","designation":"Jabbah"},{"catalog":"HD","designation":"HD 145502"},{"catalog":"HIP","designation":"HIP 79374"},{"catalog":"HR","designation":"HR 6027"}],"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."}