Astr110 Photography Projects, Spring 2005

M67, John Mondi

M67 is one of the oldest known open clusters, aged at 3.2 billion years in the star catalogue 2000. It has been calculated that M67 can expect to exist as a cluster for about another 5 billion years. The total number of stars in M67 is probably about 500. M67 is an age of the same order of magnitude as our solar system, its stars have a similar chemical composition as the sun.

The estimated angular diameter of the galaxy is estimated to be about 12 minutes.

This picture has 9.42 light years.

References:
http://www.seds.org/messier/m/m067.html