Edge On Spiral Galaxy NGC 3717
31-Aug-2020
NGC 3717 is a large spiral galaxy 60 million light years from Earth. Although 100,000 light years across, seen side-on, the galactic disk appears thin with prominent dust lanes.
Image:
- 104x 300s Luminance
- 19x 300s Red
- 24x 300s Green
- 45x 300s Blue
Total integration 16 hours. Focal length: 1960mm
Hardware:
- Celestron 11" EdgeHD
- Celestron 0.7x EdgeHD focal reducer
- Skywatcher EQ8 Pro mount
- QSI 683-ws8 Camera @ -15°C
- Astrodon LRGB Gen2 E-Series Tru-Balance filters
- Starlight Xpress Lodestar X2 Autoguider
- Innovations Foresight ONAG
- Starlight Instruments Feather Touch Focuser
Location:
- Exposed over 4 nights between 12th to 17th April 2020
- Orange zone in Brisbane, Australia. (Bortle 7)
Software:
- Planning & camera alignment with Aladin 10
- Captured with TheSkyX Professional
- Guiding with PHD2
- PixInsight: Calibrate, align, integrate, dynamic background extraction, LRGB combination, noise reduction, photometric color calibration, histogram, HDR multiscale transform, curves, crop.