At this time of year, I only have limited opportunities to observe the Sun in White Light. This is due to trees, houses etc and a low sun that seems to collect clouds.
However, on this occasion I wanted to try out the 'G' band filter. I also wanted a record of AR 4274, the large group that was responsible for a number of 'X' classification Solar Flares.
This was my first image with the new filter and to say that I was astounded would be a huge understatement. I really couldn't believe the level of detail that I could record with an 80mm refractor.
Note the tilt of the Sun, North is to the top-left of the image.
Equipment used:
- SvBony 80mm (ED) F7 refractor
- EQ5 mount with driven RA
- ZWO ASI 138MM Mono Camera
- Altair G Band Solar filter
- Baader Solar Film for Energy Rejection.
Processing was straightforward:
- SharpCap4.1 (500 frames)
- AutoStakkert! 4
- Registax 6 for wavelets and curves