{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T13:44:58.610Z","years_from_j2000":26.667,"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-90719","name":"PGC 90719","class":"spiral_galaxy_scd","category":"galaxy","object_type":"Spiral galaxy Scd","mag":14.95,"mag_band":"B","abs_mag":-18.653555507230525,"abs_mag_band":"B","distance_ly":171449797.5594796,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":69.380325,"dec_deg":-3.104,"epoch_ra_deg":69.716826,"epoch_dec_deg":-3.049607,"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":"Eridanus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/pgc-90719","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.95,"h_mag":13.953,"j_mag":14.73,"k_mag":13.535,"redshift":0.0138761769381,"hubble_type":"Scd","redshift_cmb":0.0121616433473431,"uncertainties":{"distance_ly":[41110194.50367306,41265551.52789705],"stellar_mass_solar":[373675511.7454292,373675511.7454292]},"major_axis_arcmin":1.28892,"minor_axis_arcmin":0.153897,"morphology_source":"SIMBAD (2025A&A...696A.177S, quality D)","position_angle_deg":78,"stellar_mass_solar":560513267.6181438},"designations":[{"catalog":"2MASX","designation":"2MASX 04373127-0306144"},{"catalog":"PGC","designation":"PGC 90719"}],"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."}