Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
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M81 & M82, Paul Krizak
M81 & M82
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M81 & M82

Getting plate-solving status, please wait...
M81 & M82, Paul Krizak
M81 & M82
Powered byPixInsight

M81 & M82

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Description

My first deep image using a Newtonian (C10-N) instead of an SCT. The much faster focal ratio meant I could shoot many more exposures in less time, resulting in a better SNR and thus the ability to extract (in this case) the faint arms of M81 despite the high levels of light pollution in the area.

I'm not using any guiding equipment; I believe the bloated stars and general softness of the image are due to cumulative tracking errors during the exposure.

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Sky plot

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M81 & M82, Paul Krizak