{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.664","julian_year":2026.664,"time":"2026-08-31T12:11:55.096Z","years_from_j2000":26.664,"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-41192","name":"PGC 41192","class":"elliptical_galaxy_de_d_e","category":"galaxy","object_type":"Elliptical galaxy dE(d:E)","mag":17.09,"mag_band":"B","abs_mag":-14.95168136847531,"abs_mag_band":"B","distance_ly":83514550.6825536,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":187.41,"dec_deg":11.299,"epoch_ra_deg":187.750513,"epoch_dec_deg":11.150545,"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/pgc-41192","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":17.09,"redshift":0.00506793253397,"hubble_type":"dE(d:E)","redshift_cmb":0.005951806669135,"uncertainties":{"distance_ly":[18983100.540574595,18999477.180624716],"stellar_mass_solar":[9342252.735285526,9342252.735285526]},"major_axis_arcmin":0.279897,"minor_axis_arcmin":0.269876,"morphology_source":"SIMBAD (2014A&A...569A.124V, quality C)","position_angle_deg":164,"stellar_mass_solar":18684505.470571052},"designations":[{"catalog":"PGC","designation":"PGC 41192"},{"catalog":"WISExSCOS","designation":"WISExSCOS J122938.51+111756.5"}],"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":"2026-08-30T09:56:50.739Z","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."}