{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.680","julian_year":2026.68,"time":"2026-09-06T07:08:52.968Z","years_from_j2000":26.68,"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-1020235","name":"PGC 1020235","class":"spiral_galaxy_scd","category":"galaxy","object_type":"Spiral galaxy Scd","mag":16.049,"mag_band":"B","abs_mag":-19.020800227574036,"abs_mag_band":"B","distance_ly":336810731.6069587,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":39.77763,"dec_deg":-7.365453,"epoch_ra_deg":40.109738,"epoch_dec_deg":-7.249323,"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-1020235","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":16.049,"h_mag":12.5,"j_mag":13.2,"k_mag":12.219,"redshift":0.02385,"hubble_type":"Scd","redshift_cmb":0.023687562201541,"uncertainties":{"distance_ly":[17210980.552573778,17216756.698877238],"stellar_mass_solar":[3736484249.95543,3736484249.95543]},"major_axis_arcmin":0.995807,"minor_axis_arcmin":0.183029,"morphology_source":"SIMBAD (2006A&A...445..765K, quality D)","position_angle_deg":163,"stellar_mass_solar":8407089562.399717},"designations":[{"catalog":"2MASX","designation":"2MASX 02390663-0721556"},{"catalog":"PGC","designation":"PGC 1020235"},{"catalog":"WISExSCOS","designation":"WISExSCOS J023906.62-072154.5"}],"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":"2026-09-02T19:50:56.720Z","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."}