MOSAIC
Celestron Fastar 8 at f/1.95, PixCel 237.
This is a composite image created in Adobe Photoshop. It consists
of eight 600 second exposures (each a combination of five 120 second images
Track and Accumulate), using the AP900 with PEM correction engaged.
The images were shot over several nights, and cover and area nearly 2 degrees
wide. Unguided at -34.89 degrees Celsius. This is my first
attempt at mosaics and, although there are a few problems, it came out
rather well.
For comparison, a single 30 by 40 arc minute Fastar
frame.
Celestron Fastar 8 at f/1.95, PixCel 237.
This 600 second exposure consists of ten 60 second images Track and Accumulate,
using the AP900 with PEM correction engaged. Unguided at -30.21 degrees
Celsius.