C105
NGC 4833
Object Data
- Catalog Designation
- C105
- Type
- GlobularCluster
- Constellation
- Musca
- Magnitude
- 7.4
- Right Ascension
- 12h 59m 35.5s
- Declination
- -70° 52' 33.6"
- Distance
- 21,200 light-years
- Angular Size
- 14
Survey Image
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About C105
Description
NGC 4833 is a globular cluster in Musca, about 21,200 light-years away. It spans about 14 arcminutes and shines at magnitude 7.4. The cluster lies behind significant foreground dust, which reddens and dims it somewhat.
Observing Tips
Visible as a moderately bright, round glow in a 4-inch telescope. An 8-inch scope resolves the outer stars. The foreground dust gives the cluster a slightly reddened appearance. Best from southern latitudes in autumn and winter.
History
Discovered by Nicolas Louis de Lacaille in 1751 from South Africa. It is one of the more obscured globular clusters in this part of the sky due to intervening Milky Way dust.
Fun Facts
NGC 4833 is one of the more metal-poor globular clusters in the Milky Way, suggesting it is among the oldest. Its position behind moderate interstellar extinction has historically made precise measurements challenging.
Community Photos (1)
Credit: ESA/Hubble and NASA. License: CC BY 4.0. (Wikimedia Commons)
Skybred Mar 2, 2026