NGC 4631 is an edge-on spiral galaxy in the constellation Canes Venatici, 30 million light-years away

After months of using a focal reducer on my telescope, I finally realized I had a way to rack the focus far back enough to use it at prime focus. I wanted to test it on something new, and interesting, so I shot this galaxy. Unfortunately, I also wanted to test it on something I'd already done, to see the new resolution, so I swapped objects halfway through the night. As a result, there isn't enough data here for a cleaner high quality image. I'll definitely be coming back to finish this one off when I get a chance!

Details:

• Canon T3i (modified: missing IR cutoff)

• Skywatcher NEQ6 Pro (Guided: Orion StarShoot, PHD2)

• Vixen VMC200L (1950mm f/9.75)

• 24x 5min exposures @ ISO-1600 (2 hours) ~ 17.0 °C

• 10x Darks

• 40x Flats

• 40x Biases

Processing:

• Processed in PixInsight 1.8. Workflow details on my site.

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