{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.669","julian_year":2026.669,"time":"2026-09-02T05:23:04.132Z","years_from_j2000":26.669,"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":"pgc-12562","name":"PGC 12562","class":"spiral_galaxy_s_s0a","category":"galaxy","object_type":"Spiral galaxy S/S0a","mag":15.081,"mag_band":"B","abs_mag":-18.904890050680674,"abs_mag_band":"B","distance_ly":204457895.07078922,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":50.25174,"dec_deg":41.562481,"epoch_ra_deg":50.696838,"epoch_dec_deg":41.659388,"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":"Perseus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-12562","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":15.081,"h_mag":11.097,"j_mag":11.878,"k_mag":10.765,"redshift":0.0157,"hubble_type":"S/S0a","redshift_cmb":0.0144779235698322,"uncertainties":{"distance_ly":[32564913.035223916,32565781.378989954],"stellar_mass_solar":[2802525465.688896,2802525465.688896]},"major_axis_arcmin":0.513,"minor_axis_arcmin":0.216,"morphology_source":"SIMBAD (2020A&A...640A..30M, quality C)","position_angle_deg":80,"stellar_mass_solar":21486028570.28154},"designations":[{"catalog":"2MASX","designation":"2MASX 03210041+4133449"},{"catalog":"PGC","designation":"PGC 12562"},{"catalog":"WISExSCOS","designation":"WISExSCOS J032100.40+413344.9"}],"source":{"id":"glade_plus","name":"GLADE+ (Galaxy List for the Advanced Detector Era)","url":"https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/291","license":"VizieR terms; cite Dalya+ 2022 (2022MNRAS.514.1403D)"},"updated_at":"2026-09-01T22:58:55.274Z","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."}