Spiral Galaxy NGC289
16-Nov-2018
Seen face-on, this large spiral galaxy is 70 million light years away, with a bright core and very faint blue arms. A companion elliptical galaxy seems to be interacting with a spiral arm.
Image:
- 28x 900s luminance
- 28x 450s red
- 22x 450s green
- 25x 450s blue
Total integration 16 hours 23 minutes.
Hardware:
- Celestron 11" EdgeHD
- Celestron EdgeHD 0.7x focal reducer
- Skywatcher EQ8 Pro mount
- QSI 683-ws8 Camera @ -15°C
- Astronomik UHC, deep sky RGB filters
- Starlight Xpress Lodestar X2 Autoguider
- Starlight Xpress Active Optics
- Innovations Foresight On Axis Guider
- Starlight Instruments Focus Boss II
Location:
- Imaged on 6 nights between October 9 and November 11, 2018.
- Orange zone in Brisbane, Australia. (Bortle 7)
Software:
- Planning & camera alignment with Aladin 10
- Captured with TheSkyX Professional
- Guiding with PHD2
- FocusLock live focusing
- PixInsight: Calibrate, evaluate sub-frames, align, stack, crop, dynamic background extraction, deconvolution, color calibration, reduce noise, LRGB combination, histogram stretch, HDR multiscale transform, curves.