{"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":"2026-09-02T03:17:14.078Z","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-126779","name":"PGC 126779","class":"spiral_galaxy","category":"galaxy","object_type":"Spiral galaxy","mag":17.64,"mag_band":"B","abs_mag":-16.92198391716905,"abs_mag_band":"B","distance_ly":266576989.22574955,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":194.959457,"dec_deg":28.144247,"epoch_ra_deg":195.283851,"epoch_dec_deg":27.999352,"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":"Coma Berenices","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-126779","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":17.64,"h_mag":14.74,"j_mag":15.312,"k_mag":14.648,"redshift":0.0219874309937,"hubble_type":"1.08","redshift_cmb":0.0188157720417625,"uncertainties":{"distance_ly":[64575181.74591857,64969107.10021829],"stellar_mass_solar":[467074842.4928644,467074842.4928644]},"major_axis_arcmin":0.3259,"minor_axis_arcmin":0.154509,"morphology_source":"SIMBAD (2022MNRAS.513..389R, quality C)","position_angle_deg":165,"stellar_mass_solar":747319747.988583},"designations":[{"catalog":"2MASX","designation":"2MASX 12595026+2808392"},{"catalog":"PGC","designation":"PGC 126779"},{"catalog":"WISExSCOS","designation":"WISExSCOS J125950.28+280839.7"}],"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."}