{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.686","julian_year":2026.686,"time":"2026-09-08T15:15:11.065Z","years_from_j2000":26.686,"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-9625","name":"UGC 9625","class":"spiral_galaxy_s_ab_xa","category":"galaxy","object_type":"Spiral galaxy S_AB_{xa}","mag":13.875,"mag_band":"B","abs_mag":-20.775858836333292,"abs_mag_band":"B","distance_ly":277713916.04202986,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":224.43692,"dec_deg":6.626986,"epoch_ra_deg":224.769305,"epoch_dec_deg":6.518848,"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":"Virgo","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ugc-9625","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.875,"h_mag":10.646,"j_mag":11.373,"k_mag":10.372,"redshift":0.02147,"hubble_type":"S_AB_{xa}","redshift_cmb":0.0195905838383535,"uncertainties":{"distance_ly":[15239120.607935641,15243873.539456652],"stellar_mass_solar":[9341451311.402687,9341451311.402687]},"major_axis_arcmin":2.19197,"minor_axis_arcmin":0.648605,"morphology_source":"SIMBAD (2019MNRAS.488..590B, quality C)","position_angle_deg":177,"stellar_mass_solar":18682902622.805374},"designations":[{"catalog":"2MASX","designation":"2MASX 14574486+0637371"},{"catalog":"PGC","designation":"PGC 53470"},{"catalog":"WISExSCOS","designation":"WISExSCOS J145744.88+063736.8"}],"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."}