Globular cluster · Musca
NGC 4833
Also known as: C105
mag 6.98.4′ across
About
NGC 4833 is a globular cluster of magnitude 6.9 in Musca, about 8.4′ across.
How to find it
- NGC 4833 is in the constellation Musca.
- Best evenings: around late May it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
- Where on Earth: it is seen well, at least 10° up, from south of 9° N.
When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.
What you will see
- EyesNot visible to the naked eye.
- Binoculars (10×50)A fuzzy ball, brighter towards the middle.
- Telescope (6–8 inch)Resolves into a swarm of stars at medium power, with a dense core.
For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.
Facts
| Designations | NGC 4833, C105 |
|---|---|
| Type | Globular cluster |
| Magnitude | 6.9The smaller the number, the brighter. |
| Apparent size | 8.4′the full Moon is 31′ across |
| Surface brightness | ≈ 20.1 mag/arcsec²Estimate from the magnitude and size, per square arcsecond. |
| Constellation | Musca |
| Right ascension (J2000) | 12h 59m 34.9s |
| Declination (J2000) | −70° 52′ 29″ |
More in Musca
Sources and credits
Catalog data: OpenNGC by Mattia Verga, CC BY-SA 4.0, and d3-celestial by Olaf Frohn, BSD 3-Clause. All data sources →