<TITLE>Image of Messier 13, Great Hercules Globular Cluster</title>
<body text="#FFFFFF" bgstyle="color:#000020" link="#FFCC00" vlink="#FFCC00"
<H1>Great Hercules Globular Cluster</h1>
ALT="Messier 13 Image">
<P>This image was taken through our 10-inch f/6 Newtonian using a
Cookbook 245 CCD camera, operating in a high resolution mode of
755x484 pixels. The image is a composite of 30 subimages of 30
seconds each. This makes the total exposure time 900 seconds, or 15
minutes. The processing was done in Iris, and included dark
subtraction and DDP(digital development processing).
<P>Image by Dean W. Armstrong, taken on July 14th, 2002.