{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T21:00:53.799Z","years_from_j2000":26.684,"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-2982","name":"UGC 2982","class":"barred_spiral_galaxy_sb","category":"galaxy","object_type":"Barred spiral galaxy SB","mag":13.444,"mag_band":"B","abs_mag":-20.989345715493798,"abs_mag_band":"B","distance_ly":251243606.15864515,"distance_method":"luminosity distance from a spectroscopic redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":63.09446,"dec_deg":5.54698,"epoch_ra_deg":63.451687,"epoch_dec_deg":5.616314,"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":"Taurus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ugc-2982","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.444,"h_mag":10.405,"j_mag":11.269,"k_mag":9.905,"redshift":0.0177,"hubble_type":"SB","redshift_cmb":0.0177475763184228,"uncertainties":{"distance_ly":[13892838.765057042,13895758.301917573],"stellar_mass_solar":[18683119135.023716,18683119135.023716]},"major_axis_arcmin":0.79,"minor_axis_arcmin":0.39,"morphology_source":"SIMBAD (2019MNRAS.488.2175B, quality C)","stellar_mass_solar":46707797837.55929},"designations":[{"catalog":"2MASX","designation":"2MASX 04122267+0532491"},{"catalog":"PGC","designation":"PGC 14651"},{"catalog":"WISExSCOS","designation":"WISExSCOS J041222.59+053249.9"}],"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."}