{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T12:52:02.018Z","years_from_j2000":26.667,"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-10135","name":"PGC 10135","class":"lenticular_galaxy","category":"galaxy","object_type":"Lenticular galaxy","mag":14.21,"mag_band":"B","abs_mag":-20.524818394278512,"abs_mag_band":"B","distance_ly":288661958.6248425,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":40.159904,"dec_deg":8.848641,"epoch_ra_deg":40.518773,"epoch_dec_deg":8.964063,"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":"Cetus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-10135","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.21,"h_mag":10.925,"j_mag":11.61,"k_mag":10.651,"redshift":0.02022,"hubble_type":"0","redshift_cmb":0.0203514065652623,"uncertainties":{"distance_ly":[15543311.75395789,15547205.29560594],"stellar_mass_solar":[4670703329.242876,4670703329.242876]},"major_axis_arcmin":1.4415,"minor_axis_arcmin":0.735307,"morphology_source":"SIMBAD (2005ApJS..160..149S, quality D)","position_angle_deg":170,"stellar_mass_solar":35497345302.24586},"designations":[{"catalog":"2MASX","designation":"2MASX 02403837+0850551"},{"catalog":"PGC","designation":"PGC 10135"},{"catalog":"WISExSCOS","designation":"WISExSCOS J024038.34+085054.5"}],"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."}