M 25

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Object data of M25

Object type: open cluster (I2p)
Size: 29'
Magnitude: 4.6 mag
Constellation: Sgr
Distance: 2,000 Ly
Notes: Messier 25 is a poor open star cluster in the constellation Sagittarius. It's age may be about 90 million years.

Exposure data

Date: 2009-09-12
Location: La Palma / Spain (1700m)
Telescope: Rubinar300 (2.5" Maksutov Cassegrain f=300mm)
Camera: EOS1000D (ISO400)
Mount: Astrotrac TT320X
Exposure time: 41x2m
Exposure time total: 1h 22m