{"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":"2026-09-08T12:11:24.146Z","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-7124","name":"UGC 7124","class":"lenticular_galaxy_so","category":"galaxy","object_type":"Lenticular galaxy SO","mag":14.747,"mag_band":"B","abs_mag":-19.83509206277293,"abs_mag_band":"B","distance_ly":269056995.22027636,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":182.19278,"dec_deg":24.946392,"epoch_ra_deg":182.535286,"epoch_dec_deg":24.796827,"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/ugc-7124","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.747,"h_mag":11.224,"j_mag":11.958,"k_mag":10.976,"redshift":0.02136,"hubble_type":"SO","redshift_cmb":0.0189883850728843,"uncertainties":{"distance_ly":[15430066.387839517,15434687.846040009],"stellar_mass_solar":[3736594638.1471443,3736594638.1471443]},"major_axis_arcmin":1.24007,"minor_axis_arcmin":0.60503,"morphology_source":"SIMBAD (2003A&A...412...45P, quality E)","position_angle_deg":157,"stellar_mass_solar":25222013807.493225},"designations":[{"catalog":"2MASX","designation":"2MASX 12084626+2456470"},{"catalog":"PGC","designation":"PGC 38564"},{"catalog":"WISExSCOS","designation":"WISExSCOS J120846.25+245646.9"}],"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."}