I was originally planning on using the RGB data to colour the stars in the SHO version, but couldn't make it look "nice". For such a short amount of exposure time, the RGB data was surprisingly strong.
SHO Image:
- 39x 600s Sulfur-II
- 15x 600s Hydrogen-alpha
- 37x 600s Oxygen-III
Total integration 15 hours, 10 minutes.
RGB Image:
- 18x 60s Red
- 21x 60s Green
- 18x 60s Blue
Total integration 57 minutes.
Hardware:
- Skywatcher Black Diamond 80ED
- Skywatcher EQ8 Pro mount
- QSI 683-ws8 Camera @ -15°C
- Astronomik 6nm SHO filters
- Starlight Xpress Lodestar X2 Autoguider
- Innovations Foresight On Axis Guider
- Starlight Instruments Focus Boss II
Location:
- 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 both: calibrate, align, stack, crop, dynamic background extraction, noise reduction, stretch, curves.
- Pixinsight SHO: pixelmath combine SHO, SCNR green.
- Pixinsight RGB: Photometric color calibration.