Tidal Shells of NGC 474
07-Nov-2019
Perhaps too tough of a target for light polluted skies, elliptical galaxy NGC 474 still managed to show some tidal tails / shells from interacting with the nearby spiral galaxy NGC 470.
Elliptal galaxy NGC 467 and a number of distant galaxies are annotated below.
Image:
- 52x300s + 15x90s Lum
- 31x300s + 7x90s Red
- 26x300s + 8x90s Green
- 25x300s + 6x90s Blue
Total integration 12 hours, 4 minutes.
Hardware:
- Celestron 11" EdgeHD
- Skywatcher EQ8 Pro mount
- QSI 683-ws8 Camera @ -15°C
- Celestron EdgeHD 0.7x reducer
- Astrodon LRGB Gen2 E-Series Tru-Balance filters
- Starlight Xpress Lodestar X2 Autoguider
- Innovations Foresight ONAG
- Starlight Instruments Feather Touch Focuser
Location:
- Exposed over 6 nights between 4th October and 26th October 2019.
- 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, HDR combination, LRGB combination, noise reduction, photometric color calibration, histogram, HDR multiscale transform, curves, crop.