Beluga Lake Observatory, Homer Alaska
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M 101

 M 101 by Thomas Kerns of Beluga Lake Observaory

Object: M 101
Description M101 is a large galaxy (170 000 light years across) and takes up a large area of sky (almost half a degree in diameter). In long exposure photographs, it is a striking face on spiral galaxy. Visually, however, it is difficult to observe detail due to its low surface brightness. It is rather easy to locate as it lies close to the naked eye double star Mizar/Alcor in Ursa Major. The galaxy’s diffuse glow can be spotted in binoculars, but a telescope and dark skies are needed to get a glimpse of the galaxies faint spiral arms. Use low to moderate magnification to detect subtle detail. M101 is the brightest of a group that contains at least 9 galaxies.
Scope C8
Camera ST2000XCM
Filters Baader IR
Mount Losmandy G11
Guiding Self Guided
4.25 hours total exposure time (17x15min)



All photos on this site are the property of Thomas Kerns and may not be copied or reproduced without permission.