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 San Diego , M4 is visible in the morning sky, becoming accessible around 02:34, when it reaches an altitude of 20° above your south-eastern horizon. It will then reach its highest point in the sky at 05:05, 30° above your southern horizon. It will be lost to dawn twilight around 05:47, 29° above your southern horizon.
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|
Name
M4
|
Object type
Globular cluster
|
Position
| Constellation: | Scorpius |
| Magnitude: | 5.40 (V) [4] |
| Right ascension: | 16h23m [3] |
| Declination: | -26°31' [3] |
| Distance: | 2.2 kpc 7.2 klyr [1] |
Derived quantities
| Absolute mag (V): | -6.31 |
Visibility from San Diego
All times shown in San Diego local time.
Events
| 28 May 2023 | – Messier 4 is well placed |
| 28 May 2024 | – Messier 4 is well placed |
| 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 |