{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.679","julian_year":2026.679,"time":"2026-09-06T02:36:40.312Z","years_from_j2000":26.679,"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-7479","name":"NGC 7479","class":"barred_spiral_galaxy_sbbc","category":"galaxy","object_type":"Barred spiral galaxy SBbc","mag":11.09,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":94032872.46013302,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":346.23604166666667,"dec_deg":12.322888888888889,"epoch_ra_deg":346.572012,"epoch_dec_deg":12.467709,"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":"Pegasus","discovered":"1784","featured":false,"url":"https://spacecatalog.org/object/ngc-7479","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":11.73,"h_mag":8.51,"j_mag":9.19,"k_mag":8.2,"v_mag":11.09,"redshift":0.007935,"hubble_type":"SBbc","wikidata_id":"Q754097","redshift_cmb":0.00669763372579113,"also_known_as":["Superman Galaxy"],"discovered_by":"William Herschel","ngc_type_code":"G","uncertainties":{"distance_ly":[14551183.593813475,14551183.593813475]},"major_axis_arcmin":3.65,"minor_axis_arcmin":2.72,"wikipedia_article":"NGC 7479","position_angle_deg":26,"surface_brightness":23.04,"radial_velocity_km_s":2369},"designations":[{"catalog":"2MASX","designation":"2MASX J23045666+1219223"},{"catalog":"Caldwell","designation":"C 44"},{"catalog":"IRAS","designation":"IRAS 2302+120P15"},{"catalog":"IRAS","designation":"IRAS 23024+1203"},{"catalog":"IRAS","designation":"IRAS F23024+1203"},{"catalog":"IRAS","designation":"IRAS F23024+1204"},{"catalog":"LEDA","designation":"LEDA 70419"},{"catalog":"MCG","designation":"MCG +02-58-060"},{"catalog":"NGC","designation":"NGC 7479"},{"catalog":"PGC","designation":"PGC 70419"},{"catalog":"SDSS","designation":"SDSS J230456.65+121922.3"},{"catalog":"UGC","designation":"UGC 12343"}],"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."}