Celestial hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  M 33  ·  NGC 598  ·  Triangulum galaxy
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M33, Paul Krizak
M33
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M33

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M33, Paul Krizak
M33
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M33

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Description

My first successfully guided image. 8 minute (!!) exposures at ISO200 were a challenge, but I finally got my guiding system working so that the subs came out without any anomalies.

However, the resulting stacked image has some weird artifacts that show up as "streaks" across the entire background at a 45 degree angle. I know that it's not a poorly-guided sub in the mix; I checked all 15 subs and they're all high quality. My best guess is that it might be a poorly matched flat?

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M33, Paul Krizak