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M25

IC 4725

Proper NamesNone
Messier NumberM25
NGC/IC NumberIC 4725
ConstellationSagittarius
Right Ascension18h 32m 47s
Declination-19° 6' 4"
Distancec.2,000 light years
c.600 parsecs
MagnitudeApparent: +4.6
Absolute: -4.4
DiameterApparent: 29'
Actual: 17 light years
Number of Starsc. 80
Optimum VisibilityJuly
NotesFalling in the densely clustered part of Sagittarius in the general direction of the Galactic Nucleus, M25 is a small open cluster relatively close to the Solar System, and is just visible to the naked eye. Its brightest member, U Sagittarii, is a variable star of the regularly pulsating Cepheid type.

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