Messier 67 is an open star cluster and was first described and cataloged as an open cluster by Charles Messier in 1780. Interestingly, astronomers have discovered that Messier 67 is one of the oldest known star clusters in our Milky Way galaxy. Estimates of the age of the stars forming this open cluster range from 3.2 billion years to 4 billion years. The upper image on this page is the wide field image. The image immediately above is a higher resolution portion of the Messier 67 cluster which was cropped from the original image. The Messier 67 open cluster is estimated to be about 2,700 light years distant. Additional interesting information about the Messier 67 open cluster can be found at: http://messier.obspm.fr/m/m067.html
This image is an RGB image with 36 minute exposure time for each of the red, green and blue channels.
Shelter Valley, San Diego County, California
Optics - Takahashi E-160 at f/3.3 Mount - Astro-Physics 1200GTO, Camera - SBIG STL-11000M