{"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":"2026-09-08T17:09:25.598Z","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":"eso-372-002","name":"ESO 372-002","class":"spiral_galaxy_sbc","category":"galaxy","object_type":"Spiral galaxy Sbc","mag":13.65,"mag_band":"B","abs_mag":-20.83930593608094,"abs_mag_band":"B","distance_ly":257802463.12693885,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":137.014,"dec_deg":-37.56025,"epoch_ra_deg":137.278597,"epoch_dec_deg":-37.668345,"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":"Vela","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/eso-372-002","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.65,"h_mag":11.063,"j_mag":11.827,"k_mag":10.647,"redshift":0.0173006486503,"hubble_type":"Sbc","redshift_cmb":0.0182047005553887,"uncertainties":{"distance_ly":[51164653.054260366,51406968.596236564],"stellar_mass_solar":[9341532644.109255,9341532644.109255]},"major_axis_arcmin":0.703,"minor_axis_arcmin":0.394,"morphology_source":"SIMBAD (2003A&A...412...45P, quality E)","position_angle_deg":105,"stellar_mass_solar":18683065288.21851},"designations":[{"catalog":"2MASX","designation":"2MASX 09080336-3733369"},{"catalog":"PGC","designation":"PGC 25674"}],"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."}