{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.666","julian_year":2026.666,"time":"2026-09-01T02:45:23.020Z","years_from_j2000":26.666,"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":"ngc-5167","name":"NGC 5167","class":"barred_spiral_galaxy_sbb","category":"galaxy","object_type":"Barred spiral galaxy SBb","mag":14.63,"mag_band":"B","abs_mag":null,"abs_mag_band":null,"distance_ly":368849433.957252,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":202.167625,"dec_deg":12.711194444444443,"epoch_ra_deg":202.499344,"epoch_dec_deg":12.572066,"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":"1883","featured":false,"url":"https://spacecatalog.org/object/ngc-5167","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.63,"h_mag":11.66,"j_mag":12.21,"k_mag":11.22,"redshift":0.02492,"hubble_type":"SBb","wikidata_id":"Q1117443","redshift_cmb":0.025898645161175793,"discovered_by":"Wilhelm Tempel","ngc_type_code":"G","uncertainties":{"distance_ly":[20589249.379337132,20589249.379337132]},"major_axis_arcmin":1,"minor_axis_arcmin":0.96,"position_angle_deg":15,"surface_brightness":23.4,"radial_velocity_km_s":7378},"designations":[{"catalog":"IRAS","designation":"IRAS 13261+1258"},{"catalog":"IRAS","designation":"IRAS F13262+1258"},{"catalog":"LEDA","designation":"LEDA 47277"},{"catalog":"MCG","designation":"MCG +02-34-017"},{"catalog":"NGC","designation":"NGC 5167"},{"catalog":"PGC","designation":"PGC 47277"},{"catalog":"SDSS","designation":"SDSS J132840.23+124240.3"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"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."}