Hi
Attached is an image of the sun taken today from Melbourne.
Stack of the best 8 of 32 frames in Autostakkert3!
Decovolution with Astrosurface.
Image data taken through a home built spectroheliograph centred at Ha through a 100MM Skywatcher ED at f/9.
Disc reconstructed using Doug Smith SHG software.
ROI of 3120 x 150 pixels scanning at 300FPS.
2400l/mm Optometrics diffraction grating.
Spectral sampling at 0.05A/pixel.
Image reduced in size to 68% of original - unfortunately compressed significantly for presentation here.
Slightly better version here:
https://flic.kr/p/2pmWJFN
cheers
Maurice