Messier 52

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Messier 52
Credit: 2MASS/NASA
Observation data (J2000 epoch)
Right ascension 23h 24.2m
Declination +61° 35′
Distance 5.0 kly
Apparent magnitude (V) 5.0
Apparent dimensions (V) 13.0'
Physical characteristics
Other designations M 52, NGC 7654
See also: Open cluster, List of open clusters

Messier 52 (also known as M52 or NGC 7654) is an open cluster in the Cassiopeia constellation. It was discovered by Charles Messier in 1774. M52 can be seen from Earth with binoculars.

Due to interstellar absorption of light, the distance to M52 is uncertain, with estimates ranging between 3,000 and 7,000 light years. One study identified 193 probable members of the cluster, with the brightest member being magnitude 11.[1]

Messier 52 is estimated to be about 35 million years old.[citation needed]

Messier 52 has the Trumpler classification of I,2,r.[clarification needed][2]


  1. ^ "Archived copy". Archived from the original on 2004-10-25. Retrieved 2004-10-25.
  2. ^ Students for the Exploration and Development of Space. "SEDS: Messier 52" Accessed April 9, 2013.

External links[edit]

Coordinates: Sky map 23h 24.2m 00s, +61° 35′ 00″