{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.690","julian_year":2026.69,"time":"2026-09-09T23:10:14.689Z","years_from_j2000":26.69,"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":"ugc-10834","name":"UGC 10834","class":"spiral_galaxy_sc","category":"galaxy","object_type":"Spiral galaxy Sc","mag":15.741,"mag_band":"B","abs_mag":-19.471429429420155,"abs_mag_band":"B","distance_ly":359676249.57708395,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":261.136871,"dec_deg":20.398058,"epoch_ra_deg":261.426378,"epoch_dec_deg":20.373074,"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":"Hercules","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ugc-10834","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":15.741,"h_mag":12.896,"j_mag":13.669,"k_mag":12.782,"redshift":0.025204,"hubble_type":"Sc","redshift_cmb":0.0252662918679742,"uncertainties":{"distance_ly":[74407028.39516291,74922782.94593166],"stellar_mass_solar":[1868223613.7831068,1868223613.7831068]},"major_axis_arcmin":0.91864,"minor_axis_arcmin":0.571945,"morphology_source":"SIMBAD (2003A&A...412...45P, quality E)","position_angle_deg":91,"stellar_mass_solar":3736447227.5662136},"designations":[{"catalog":"2MASX","designation":"2MASX 17243284+2023530"},{"catalog":"PGC","designation":"PGC 60232"},{"catalog":"WISExSCOS","designation":"WISExSCOS J172432.82+202353.4"}],"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":"2026-09-09T11:17:28.634Z","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."}