{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.664","julian_year":2026.664,"time":"2026-08-31T13:10:12.687Z","years_from_j2000":26.664,"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-43353","name":"PGC 43353","class":"lenticular_galaxy_so","category":"galaxy","object_type":"Lenticular galaxy SO","mag":16.072,"mag_band":"B","abs_mag":-20.206486766109496,"abs_mag_band":"B","distance_ly":587656072.7298679,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":192.356155,"dec_deg":-41.42926,"epoch_ra_deg":192.726832,"epoch_dec_deg":-41.575653,"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":"Centaurus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-43353","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":16.072,"h_mag":13.536,"j_mag":14.239,"k_mag":13.213,"redshift":0.040708,"hubble_type":"SO","redshift_cmb":0.0408172838800493,"uncertainties":{"distance_ly":[122369560.23911913,123693723.5183318],"stellar_mass_solar":[4670103193.92161,4670103193.92161]},"major_axis_arcmin":0.26,"minor_axis_arcmin":0.187,"morphology_source":"SIMBAD (2003A&A...412...45P, quality E)","position_angle_deg":175,"stellar_mass_solar":13076288942.980509},"designations":[{"catalog":"2MASX","designation":"2MASX 12492547-4125453"},{"catalog":"PGC","designation":"PGC 43353"},{"catalog":"WISExSCOS","designation":"WISExSCOS J124925.46-412545.5"}],"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":"2026-08-30T09:56:50.739Z","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."}