Messier 3
From Wikipedia, the free encyclopedia
 Image of Messier 3 taken in infrared with the Spitzer Space Telescope |
|
| Observation data: J2000 epoch | |
|---|---|
| Class: | VI |
| Constellation: | Canes Venatici |
| Right ascension: | 13h 42m 11.23s[1] |
| Declination: | 28° 22′ 31.6″[1] |
| Distance: | 33.9 kly (10.4 kpc) |
| Apparent magnitude (V): | +6.2[1] |
| Apparent dimensions (V): | 18′.0 |
| Physical characteristics | |
| Mass: | 4.87 x 1035 kg (245 000 M☉) |
| Radius: | 90 ly |
| VHB: | - |
| Estimated age: | 8 x 109 years |
| Notable features: | - |
| Other designations: | NGC 5272[1] |
| See also: Globular cluster, List of globular clusters | |
Globular Cluster M3 (also known as Messier Object 3 or NGC 5272) is a globular cluster in the Canes Venatici constellation. It was discovered by Charles Messier in 1764, and resolved into stars by William Herschel around 1784. This cluster is one of the largest and brightest, and is made up of around 500,000 stars. It is located at a distance of about 33,900 light-years away from Earth. M3 has an apparent magnitude of 6.2, making it visible to the naked eye under dark conditions. From a moderately-sized telescope, the cluster is fully defined.
[edit] External links
[edit] References
 |
This star cluster–related article is a stub. You can help Wikipedia by expanding it. |
