{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.676","julian_year":2026.676,"time":"2026-09-04T18:32:40.194Z","years_from_j2000":26.676,"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-1441868","name":"PGC 1441868","class":"barred_spiral_galaxy_sbd","category":"galaxy","object_type":"Barred spiral galaxy SBd","mag":16.75,"mag_band":"B","abs_mag":-14.81791726217142,"abs_mag_band":"B","distance_ly":67144327.38231458,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":157.92,"dec_deg":13.83493,"epoch_ra_deg":158.278296,"epoch_dec_deg":13.697057,"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":"Leo","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-1441868","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":16.75,"redshift":0.00424032212016,"hubble_type":"SBd","redshift_cmb":0.0047893696490543,"uncertainties":{"distance_ly":[13021716.68349309,13035692.571443936],"stellar_mass_solar":[28026963.861143492,28026963.861143492]},"major_axis_arcmin":0.438027,"minor_axis_arcmin":0.219276,"morphology_source":"SIMBAD (2015ApJS..217...27A, quality C)","position_angle_deg":10,"stellar_mass_solar":46711606.43523916},"designations":[{"catalog":"PGC","designation":"PGC 1441868"},{"catalog":"WISExSCOS","designation":"WISExSCOS J103140.82+135005.6"}],"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."}