{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.675","julian_year":2026.675,"time":"2026-09-04T13:18:21.831Z","years_from_j2000":26.675,"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-7524","name":"NGC 7524","class":"lenticular_galaxy_s0_a","category":"galaxy","object_type":"Lenticular galaxy S0-a","mag":15.64,"mag_band":"B","abs_mag":null,"abs_mag_band":null,"distance_ly":313697932.74853593,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":348.44395833333334,"dec_deg":-1.7300833333333334,"epoch_ra_deg":348.788978,"epoch_dec_deg":-1.583964,"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":"Pisces","discovered":"1864","featured":false,"url":"https://spacecatalog.org/object/ngc-7524","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":15.64,"h_mag":11.64,"j_mag":12.42,"k_mag":11.45,"redshift":0.023336,"hubble_type":"S0-a","wikidata_id":"Q651625","redshift_cmb":0.02208811401655586,"discovered_by":"Albert Marth","ngc_type_code":"G","uncertainties":{"distance_ly":[19018069.90238194,19018069.90238194]},"major_axis_arcmin":0.81,"minor_axis_arcmin":0.25,"position_angle_deg":176,"surface_brightness":24.08,"radial_velocity_km_s":6914},"designations":[{"catalog":"2MASX","designation":"2MASX J23134653-0143480"},{"catalog":"LEDA","designation":"LEDA 70737"},{"catalog":"MCG","designation":"MCG +00-59-010"},{"catalog":"NGC","designation":"NGC 7524"},{"catalog":"PGC","designation":"PGC 70737"}],"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."}