NGC 5466

NGC 5466

NGC 5466 by Hubble Space Telescope; 3.5′ view.
Credit: NASA/STScI/WikiSky
Observation data (J2000 epoch)
Class XII
Constellation Boötes
Right ascension 14h  05m  27.36s
Declination +28°  32′  04.2″
Distance 51.8 kly (15.88957 kpc)
Apparent magnitude (V) 10.5
Apparent dimensions (V) 11′
Physical characteristics
VHB 16.47
Other designations C 1403+287, GCl 27, GC 3776, h 1746, H 6.
See also: Globular cluster, List of globular clusters

NGC 5466 is a class XII globular cluster in the constellation Boötes. Located 51,800 light years from Earth and 52,800 light years from the Galactic center, it was discovered by William Herschel on May 17, 1784, as H VI.9. This globular cluster is unusual insofar as it contains a certain blue horizontal branch of stars, as well as being unusually metal poor like ordinary globular clusters. It is thought to be the source of a stellar stream discovered in 2006, called the 45 Degree Tidal Stream. This star stream is an approximately 1.4° wide star lane extending from Boötes to Ursa Major.

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Coordinates: 14h 05m 27.36s, +28° 32′ 04.2″