NGC 5466 | |
---|---|
Observation data ( J2000 epoch) | |
Class | XII [1] |
Constellation | Boötes |
Right ascension | 14h 05m 27.29s [2] |
Declination | +28° 32′ 04.0″ [2] |
Distance | 51.9 kly (15.9 kpc) [3] |
Apparent magnitude (V) | 10.5 |
Apparent dimensions (V) | 11 |
Physical characteristics | |
Mass | 1.79×105 [4] M☉ |
VHB | 16.47 |
Metallicity | = –2.20 [5] dex |
Estimated age | 13.57 Gyr [5] |
Other designations | C 1403+287, GCl 27, GC 3776, h 1746, H 6. |
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.
NGC 5466 | |
---|---|
Observation data ( J2000 epoch) | |
Class | XII [1] |
Constellation | Boötes |
Right ascension | 14h 05m 27.29s [2] |
Declination | +28° 32′ 04.0″ [2] |
Distance | 51.9 kly (15.9 kpc) [3] |
Apparent magnitude (V) | 10.5 |
Apparent dimensions (V) | 11 |
Physical characteristics | |
Mass | 1.79×105 [4] M☉ |
VHB | 16.47 |
Metallicity | = –2.20 [5] dex |
Estimated age | 13.57 Gyr [5] |
Other designations | C 1403+287, GCl 27, GC 3776, h 1746, H 6. |
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.