By Randy Strauss | 2024-06-13
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![Community photo entitled Globular cluster Messier 4 by Guido Santacana on 06/12/2024 at San Juan, Puerto Rico](https://ecp.earthsky.org/upl/gravity_forms/6-d613a712aa1020729eb530187e1fe51d/2024/06/M4-2024-5-13-0200-DwarfII-200Stacked-10sec.jpg)
Globular cluster Messier 4
On 06/12/2024 by Guido Santacana| San Juan, Puerto Rico
Globular cluster Messier 4, captured as the constellation Scorpius rose above the south-eastern horizon. The bright reddish star Antares can be seen at left. This was taken in the midst of a large power blackout, which improved viewing conditions from the usual Bortle class 8, to about class 5 and possibly 4. The sky was not only clear but also transparent, which is an unusual occurrence for the tropical summer.
DWARF II Smart Telescope. Stack of 245, 10-second exposures.