The double cluster is a wonderful naked eye object located in the constellation of Perseus. Best viewed at low power using binoculars or a wide field telescope. This pair of open clusters has been known to man since recorded times.
Click image or here for larger version (1440 x 930, 622kb).
Additional information on the Double Cluster can be found on the SEDS website.
Photograph Information | |
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Date | 11.22 and 11.24.2008 |
Location | Clearfield Observatory |
Telescope | AP130 @ f4.5 w/AP telecompressor |
Camera | Canon 40D, un-modified |
Exposure | Sum of 75, 2 minute exposures at ISO 400 |
Notes | Both nights around 32°F, 85%rh, with good seeing and good transparency Initial RAW conversion, mild asinh stretch in IRIS. Calibrated with bias, dark and flat frames. Slight noise reduction in PixInsight LE 1.02. Additional adjustments in Photoshop CS2 including a mild application of star color enhancement as described by Jerry Lodriguss. |