After four days of complete cloud and rain (28mm in one day!) finally had the opportunity through broken cloud and increasing wind to try the MiniSHG on the Mg lines.
Using the Astronomik L1 UV-IR filter, Baader 0.9ND, #56 Green and the 1mm exit slit (approx 70A)
I collected a SER video in both the b2 and b1 lines - just to see the difference (if any)
Certainly not the best images I've obtained, but under the circumstances better than nothing.
I think there is marginally more detail, faculae, granulation and penumbra showing in the b2.
What do you think?
Oh, no prominences visible...... ;(
The weather should improve next week so I'll try to image in Mg again.
Last edited by Merlin66; 10-01-2022 at 01:50 PM.
Reason: incorrect
John,
Thanks for the feedback.
I’m not sure what to expect from Mg. I can’t find too many comparison images.
There’s some (not many) based on the Daystar Mg Quark. I need to check what the bandwidth is supposed to be.
Interesting results in this wave length Ken. I can empathise with you on the quality of the seeing which at best here today was very ordinary. If progress in Ca II K is anything to go by I look forward to seeing future imaging in this wavelength.
