The Messier Ten Minute Challenge

M103 - Open Cluster in Cassiopeia

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 10 x 10 arc minutes in size.

The open cluster M103 (NGC 581) lies at a distance of about 8000 light years. It has a diameter of 15 light years and an estimated age of about 25 million years.


Details of the observatory and telescope


Return to Short Projects and Targets of Opportunity


In collaboration with the Remote Astronomical Society Observatory

Martin Nicholson - Daventry, United Kingdom.

This page was last updated on March 30th 2008.