by Craig and Tammy Temple
This globular cluster in Hercules is a magnificent object, but often overlooked due to it's proximity to M13. At over 14 billion years old, M92 is one of the oldest globulars known. It contains over 300,000 members and shines relatively brightly at magnitude 7.50 This image was taken on June 6, 2009. The temperature was around 70° F. It is a total of 1.5 hours exposure time.
10" Orion Newtonian f/4.7 w/Baader MPCC
Atlas EQ-G w/EQMOD, Guided
Canon 350D (self-modified) w/Astronomik EOS Clip IR filter + 2" Hutech IDAS LPS filter
30 x 180s @ ISO 400