The above image is a three hour exposure of the spiral galaxy M81 (sometimes called Bode's Galaxy, left) and the irregular galaxy M82 in Ursa Major.
The above image is a two hour exposure of the large spiral galaxy M101 (sometimes called the Pinwheel Galaxy) also in Ursa Major.
The above image is a combination of several images of M101, for a total exposure time of about four hours.
The Whirlpool Galaxy, M51. Total exposure time of three hours.
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