M28 · globular cluster

Messier 28

Messier 28 or M28, also known as NGC 6626, is a globular cluster of stars in the center-west of Sagittarius.

RA18h 24m 32sDec−24° 52' 11"

Image: Credits: NASA, ESA, STScI, R. Buonanno (Universita di Roma Tor Vergata), K. Gebhardt (University of Texas at Austin), J. Grindlay (Harvard University), and F. Ferraro (Universita di Bologna). Public domain, via Wikimedia Commons.

Identity & coordinates

Identification

Primary designation: M28
All designations: M28 · NGC 6626
Object type: Globular Cluster
Constellation: Sagittarius
Best viewing: Summer

Coordinates & physical

Right ascension (J2000): 18h 24m 32s
Declination (J2000): −24° 52' 11"
Apparent magnitude (V): —
Distance: —

III

Visibility tonight

The science

Messier 28 or M28, also known as NGC 6626, is a globular cluster of stars in the center-west of Sagittarius. It was discovered by French astronomer Charles Messier in 1764. He briefly described it as a "nebula containing no star... round, seen with difficulty in 31⁄2-foot telescope; Diam 2′."

Summary adapted from Wikipedia · CC-BY-SA-4.0