The Messier Ten Minute Challenge

M25 - Open Cluster in Sagittarius

Click here for a review of the strengths and weaknesses of the Global Rent-A-Scope operation.

This image was created by median combining 7 x 30 second images using B, V and R filters taken with a Takahashi Epsilon 250 with SBIG ST-8XE CCD. The image has been cut down to be 20 x 20 arc minutes in size.

M25 (IC 4725) is about 90 million years old and is at a distance of about 2,000 light-years and with a diameter of 19 light-years.

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In collaboration with the Remote Astronomical Society Observatory

Martin Nicholson - Daventry, United Kingdom.

This page was last updated on April 16th 2009.