{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-01T23:41:23.153Z","years_from_j2000":26.668,"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-32630","name":"PGC 32630","class":"lenticular_galaxy_sa0","category":"galaxy","object_type":"Lenticular galaxy SA0","mag":14.601,"mag_band":"B","abs_mag":-16.960436820042872,"abs_mag_band":"B","distance_ly":66944243.656641975,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":163.089188,"dec_deg":17.935226,"epoch_ra_deg":163.447765,"epoch_dec_deg":17.792752,"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":"Leo","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-32630","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.601,"h_mag":12.304,"j_mag":12.862,"k_mag":12.07,"redshift":0.00435,"hubble_type":"SA0","redshift_cmb":0.0047751492574802,"uncertainties":{"distance_ly":[6059586.438997532,6059685.341582693],"stellar_mass_solar":[93423225.73879884,93423225.73879884]},"major_axis_arcmin":0.868267,"minor_axis_arcmin":0.481454,"morphology_source":"SIMBAD (2015ApJS..217...27A, quality C)","position_angle_deg":17,"stellar_mass_solar":186846451.47759768},"designations":[{"catalog":"2MASX","designation":"2MASX 10522140+1756068"},{"catalog":"PGC","designation":"PGC 32630"},{"catalog":"WISExSCOS","designation":"WISExSCOS J105221.39+175607"}],"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."}