NGC7640 - Barred Spiral Galaxy in Andromeda

NGC 7640 is a barred spiral galaxy that is viewed in a minor inclination. It lies approximately 49 millioin light years away and spans 59,000 light years (about one-half the diameter of the Milky Way).

Telescope: 10 in. TPO R-C @ f/6.2 (using Astro-Physics CCD telecompressor)
Camera: SBIG ST-8300 w/Baader filter set
Mount: iOptron CEM 60
Guiding: Orion SSAG Pro on 300mm Komura lens

Luminance: 24 x 5 min.
R: 18 @ 5 min.; G: 18 @ 5 min.; B: 21 @ 5 min.


Images were focused, captured, reduced, and combined in MaxIm CCD. The Luminance and RGB images were combined and adjusted (Curves) in Photoshop. The RGB and L images were aligned in RegiStar and the composite created in Photoahop. Sharpening and noise reduction were done with Topaz Detail and DeNoise respectively.

Shot from by backyard observatory in southeastern Minnesota on three nights between 9/9/15 and 9/12/15. Seeing was relatively poor, consitent with lying in a valley.

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