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 90 second unfiltered images taken with a RCOS 10" operating at f/6. The image has been cut down to be 20 x 20 arc minutes in size.
M55 (NGC 6809) is a large but loose globular cluster which makes it resolvable even in small telescopes. M55 was originally discovered by Lacaille in 1752 and Messier found and cataloged it in 1778. It has a diameter of about 110 light-years and at 20000 light years distance is one of the closest globular clusters.
In collaboration with the Remote Astronomical Society Observatory
Martin Nicholson - Daventry, United Kingdom.
This page was last updated on April 15th 2009.