M4 (Globular cluster)

Image of M4
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 28 arcminutes across.
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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
Other names
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.

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



San Diego



Color scheme