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M108 and M97 (Owl Nebula)

M108 and M97 (Owl Nebula)

I came home from work and the sky was very clear. So I decided to try to take an image of the Owl Nebula in the constellation Ursa Major. I used the Canon 300D piggy back mounted on the small 4.5" reflector telescope (mounted on a motor driven mount). This is a stack of 27 images (30s exposure, ISO 1600). I used the Minolta Rokkor f2.8/135mm lens. Two dark frames subtracted in DeepSkyImager. Gradient removed in PixInsight LE, some touchup in Nebulosity. Besides M97 (NGC 3587, owl nebula), M108 (NGC 3556) is also visible in this image. The galaxy M108 is 45 million light years distant and only has a brightness of magnitude 10. Taken on April 4, 2011.

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