The Messier Ten Minute Challenge

M46 - Open Cluster in Puppis

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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 M46 (NGC 2437) lies at a distance of about 5400 light years. It has a diameter of 30 light years and an estimated age of about 300 million 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 15th 2009.