NGC 5466
| NGC 5466 | |
|---|---|
NGC 5466 by Hubble Space Telescope; 3.5′ view | |
| Observation data (J2000 epoch) | |
| Class | XII |
| Constellation | Boötes |
| Right ascension | 14h 05m 27.29s |
| Declination | +28° 32′ 04.0″ |
| Distance | 4.91 ± 0.12 kpc (16.0 ± 0.4 kly) |
| Apparent magnitude (V) | 9.2 |
| Apparent dimensions (V) | 9.0′ |
| Physical characteristics | |
| Absolute magnitude | −6.98 |
| Mass | 1.79×105 M☉ |
| Tidal radius | 238.0 ly (72.98 pc) |
| VHB | 16.47 |
| Metallicity | = –1.95±0.02 dex |
| Estimated age | 12.15±0.11 Gyr |
| Notable features | Tidal stream |
| Other designations | NGC 5466, C 1403+287, GCl 27, GC 3776, h 1746, H 6 |
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NGC 5466 is a globular cluster of stars in the constellation Boötes. It was discovered by German-British astronomer William Herschel on May 17, 1784, and catalogued as H VI.9. This large, dim cluster has an apparent visual magnitude of 9.2 and spans an angular size of 9.0′. It is relatively distant from the Sun, about 52 thousand light-years (16.0 kpc) away, and 53 thousand light-years (16.3 kpc) from the Galactic Center.