M4 (Globular cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 28 arcminutes across.
Finder chart
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From Cambridge , M4 is not observable – it will reach its highest point in the sky during daytime and is 6° below the horizon at dawn.
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|
Name
M4
|
Object type
Globular cluster
|
Position
| Right ascension: | 16h23m [3] |
| Declination: | −26°31' [3] |
| Constellation: | Scorpius |
| Magnitude: | 5.40 (V) [4] |
| Distance: | 2.2 kpc 7.2 klyr [1] |
Derived quantities
| Absolute mag (V): | -6.31 |
Visibility from Cambridge
All times shown in Cambridge local time.
Events
| 28 May 2025 | – Messier 4 is well placed |
| 28 May 2026 | – Messier 4 is well placed |
| 28 May 2027 | – Messier 4 is well placed |
| 28 May 2028 | – Messier 4 is well placed |
| 28 May 2029 | – Messier 4 is well placed |
| 28 May 2030 | – Messier 4 is well placed |
| 28 May 2031 | – Messier 4 is well placed |
| 28 May 2032 | – Messier 4 is well placed |