{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.687","julian_year":2026.687,"time":"2026-09-08T23:56:38.107Z","years_from_j2000":26.687,"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":"ngc-1428","name":"NGC 1428","class":"elliptical_galaxy_e_s0","category":"galaxy","object_type":"Elliptical galaxy E-S0","mag":13.84,"mag_band":"B","abs_mag":null,"abs_mag_band":null,"distance_ly":77437092.99120614,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":55.59470833333334,"dec_deg":-35.153999999999996,"epoch_ra_deg":55.853019,"epoch_dec_deg":-35.067829,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Fornax","discovered":"1865","featured":false,"url":"https://spacecatalog.org/object/ngc-1428","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.84,"h_mag":10.3,"j_mag":11,"k_mag":10.2,"redshift":0.005817,"hubble_type":"E-S0","wikidata_id":"Q1043325","redshift_cmb":0.005520488438692794,"discovered_by":"Johann Friedrich Julius Schmidt","ngc_type_code":"G","uncertainties":{"distance_ly":[14379406.105244357,14379406.105244357]},"major_axis_arcmin":1.48,"minor_axis_arcmin":0.73,"wikipedia_article":"NGC 1428","position_angle_deg":123,"surface_brightness":23.39,"radial_velocity_km_s":1739},"designations":[{"catalog":"ESO","designation":"ESO 358-053"},{"catalog":"ESO","designation":"ESO 358-53"},{"catalog":"ESO-LV","designation":"ESO-LV 358-0530"},{"catalog":"LEDA","designation":"LEDA 13611"},{"catalog":"MCG","designation":"MCG -06-09-022"},{"catalog":"NGC","designation":"NGC 1428"},{"catalog":"PGC","designation":"PGC 13611"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","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."}