|The image at
left was produced by either zooming the camera (10x optical zoom) and
photographing a series of 15 second images as before. Here one
can begin to see the extended size of the disk galaxy near the center
of the image. Notice also that the core of the galaxy is not as
blue as the surrounding field stars. This indicates that the
billions of stars that make up the core of M31 are old and evolved.
|The image at left
below is photographed through a small telephoto lens piggy-backed onto
a telescope with a clock drive. The photograph at right below
used a digital SLR camera mounted so the sensor was at the prime focus
of an 8-inch Schmidt-Cassegrain telescope. Notice the fine detail
of the dust clouds in the telescope image.
Photo by D. Collins
Photo by Dan Sockwell