SolarChat!

Mark, I was trying an additional reducer ring today like you mentioned but haven't looked at the images yet. I put the Baader K-Line in in as a test to see if the ghost was reduced (and was not). I didn't see the ghost change wit the reduced aperture today either. More work required. Hiya Brian. Ca...

Re: Lunt 130 Full Disc 2024-04-25 Nice outcome. The 80 is more even though.

Nice outcome. The 80 is more even though.

Nice to see what is going on thanks JAmes!

These are excellent thanks Petrus!

Re: The rest from today 4/25/2024 Great disk Warren!

Great disk Warren!

Ha ha ha!

Lovely disks thanks Rainer!

You got an excellent set here JAmes, nicely done!

Thats brilliant thanks Warren!

Good result Petr!

Re: 24 Apr 2024 Full Disk White Light Nice shot Robert!

Nice shot Robert!

Looking back at historical records the spot was actively evolving and it was 2 spots that merged into one.

I think light bridges form when a single spot splits into 2.

20240425192659_1024_aia_1600.mp4: (3.65 MiB) Downloaded 2 times

Looks promising! You will make life a lot easier for yourself in terms if seeing by stopping the scope down to half the native aperture. You will also get more contrast from it.

Lovely disks thanks

A nice set here Pedro, glad the sun is shining for you!

Nice disks Brian! Stop down the scope for the Cak instead of using the K line in addition, you will get more contrast.

Re: full disks 24/4/24 Excellent disks Rich! Great sampling.

Excellent disks Rich! Great sampling.

Re: Full Disc 2024-04-24 Nice thanks Paul!

Nice thanks Paul!

I just wish manufacturers would make affordable CaK filters instead of stuff like this for solar...

Nice cinema thanks!

Nice disks thanks John!

Good result in the conditions Warren!

Re: G-band FD 25 April 2024 Nice quick grab - mono for me!

Nice quick grab - mono for me!

Great disks thanks Nic!

Nice mod thanks Rainer

Very good disks thanks Arne, lots happening!

DavidP wrote: ↑Tue Apr 23, 2024 7:52 pm Whereas I’ve heard of others consistently using from 0.7 to 0.9.

Suggests undersampling to me if those values are being used.

Nice disks Robert, thanks for sharing!

Re: 23/4/24 FL and some close ups Looks good Rich

Looks good Rich

Nice to read your report thanks James

Re: 23 April 2023 Good results thanks Ralph!

Good results thanks Ralph!

All depends whether the spot was emerging or decaying when the picture was taken. Laszlo, can you elaborate on the time and date of recording please.

that the proms were stronger with 40mm although perhaps at the expense of the disc being less sharp with the increased exposure. Does that happen or did it just seem to happen and it was coincidence with a change in seeing. With reduced aperture (and longer focal ratio) the bandpass of the filter w...

Great result there Arne!

Re: Full Disc 23-04-2024 Lovely disks thanks Rainer!

Lovely disks thanks Rainer!

Nice results Warren. I must be honest over the years I have completely unfavoufred and no longer use etalons in these cells that friction fit on dew shields, exactly for what you found, they sag and cause uneven illumination and tuning. My front mounted etalons only screw directly onto otas, and, th...

Re: Sun 23 April 2024 Nice disk!

Nice disk!

funny

Nice shots Lazslo. You are lucky to have such seeing conditions.

To answer your question, what do solar field strength charts show for the day of capture?

Nice shots David, maybe back off on the sharpening and levels a bit.

Are you testing the amount of tilt needed Dennis, or just using the tilt imparted by the shims that came with the filters?

Excellent views thanks Petr!

Nice shots Vin, I would agree with your conclusions.

Tanks folks!

Thanks Paul and Arne!

Now only if I can find a large plastic jar lid that will fit the dew shade on the C102. 66mm would be an improvement over 40mm. Cutting out a cardboard ring will be easier. True. It won’t look as good or last as long but it will work. Just pop it in the dew shield, no need for tape or anything. Tak...

Thanks John!

Great captures John! Good to see the numbers going up.

Great captures John! Good to see the numbers going up.

Half an hour well spent James, glad you got a view in.

Great results Brian, thanks for sharing!

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