Higher resolution here
My goal was to capture as much of the faint outer halo as possible. The stars appear as cyan due to the differing exposure lengths of H-a and O-III.
Image:
- 81x 300s 6nm H-α
- 90x 600s 6nm O-III
Total integration 21 hours, 45 minutes.
Hardware:
- Celestron 11" EdgeHD
- Celestron EdgeHD 0.7x focal reducer
- Skywatcher EQ8 Pro mount
- QSI 683-ws8 Camera @ -15°C
- Astronomik 6nm narrowband filters
- Starlight Xpress Lodestar X2 Autoguider
- Starlight Xpress Active Optics
- Innovations Foresight On Axis Guider
- Starlight Instruments Focus Boss II
Location:
- Imaged on 5 nights between 23rd May and 29th May 2019.
- Orange zone in Brisbane, Australia. (Bortle 7)