{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T19:09:28.738Z","years_from_j2000":26.67,"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-2986","name":"NGC 2986","class":"elliptical_galaxy_e","category":"galaxy","object_type":"Elliptical galaxy E","mag":10.64,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":124405698.67945093,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":146.0668333333333,"dec_deg":-21.278,"epoch_ra_deg":146.377639,"epoch_dec_deg":-21.400966,"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":"Hydra","discovered":"1785","featured":false,"url":"https://spacecatalog.org/object/ngc-2986","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":11.69,"h_mag":7.85,"j_mag":8.54,"k_mag":7.64,"v_mag":10.64,"redshift":0.007725,"hubble_type":"E","wikidata_id":"Q1102272","redshift_cmb":0.008846625251893947,"discovered_by":"William Herschel","ngc_type_code":"G","uncertainties":{"distance_ly":[14938064.37362782,14938064.37362782]},"major_axis_arcmin":4.81,"minor_axis_arcmin":3.85,"wikipedia_article":"NGC 2986","position_angle_deg":42,"surface_brightness":23.96,"radial_velocity_km_s":2307},"designations":[{"catalog":"2MASX","designation":"2MASX J09441604-2116418"},{"catalog":"ESO","designation":"ESO 566-005"},{"catalog":"ESO","designation":"ESO 566-5"},{"catalog":"ESO-LV","designation":"ESO-LV 566-0050"},{"catalog":"LEDA","designation":"LEDA 27885"},{"catalog":"MCG","designation":"MCG -03-25-019"},{"catalog":"NGC","designation":"NGC 2986"},{"catalog":"PGC","designation":"PGC 27885"},{"catalog":"UGCA","designation":"UGCA 178"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T18:38:07.546Z","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."}