M25 · open cluster

Messier 25

Messier 25, also known as IC 4725, is an open cluster of stars in the southern constellation of Sagittarius.

RA18h 31m 46sDec−19° 06' 53"

Image: Starhopper. CC BY-SA 4.0, via Wikimedia Commons.

Identity & coordinates

Identification

Primary designation: M25
All designations: M25 · IC 4725
Object type: Open Cluster
Constellation: Sagittarius
Best viewing: Summer

Coordinates & physical

Right ascension (J2000): 18h 31m 46s
Declination (J2000): −19° 06' 53"
Apparent magnitude (V): —
Distance: —

III

Visibility tonight

The science

Messier 25, also known as IC 4725, is an open cluster of stars in the southern constellation of Sagittarius. The first recorded observation of this cluster was made by Philippe Loys de Chéseaux in 1745 and it was included in Charles Messier's list of nebulous objects in 1764. The cluster is located near some obscuring features, with a dark lane passing near the center.

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