Solar prom

[traveller]

I think I am getting used to solar imaging :shrug:
Anyway, this is my second go using a Lunt 60mm double stack on loan from Malcolm (Barx1963), taken during the scouts science day.
400 frames stacked using Registax 6. Camera was QHY5II-L colour. Cropped to show the prominence.
Still learning processing in Registax, so any comments will be welcome!
Bo

[lazjen]

I'm no expert at it, but your surface image portion seems to be quite banded or solid on each side. The centre portion seems fine.

I use autostakkert instead of registax. From what I understand, autostakkert is more up to date. If I use registax, it's usually after processing in autostakkert and it's for the wavelet processing.

I use the same camera, but with a Coronado. Here's a couple of my attempts from earlier this year: https://plus.google.com/u/0/+ChrisRyan_Oz/posts/LhgexyoM7QJ https://plus.google.com/+ChrisRyan_Oz/posts/1gbX2WANPve https://plus.google.com/+ChrisRyan_Oz/posts/8ZJDAc5XqnX

For processing the proms/flares, you may need to mask the main sun disk so you can enhance the detail. I did that for the last link above. If you want to include the main disk and the enhanced proms, you just have to put them back together after processing.

I suggest going into the Solar imaging section and posting a reply to some of the people there posting Solar images - they can probably give you better info/tips.

[traveller]

Thanks Chris,
I think the banding has something to do with the tuning of the etalons (the sun being spherical and the tuning focuses on the details across the surface :shrug:)
I will check your links as well, so much to learn!
Bo

[Merlin66]

Bo,
You've imaged a filaprom - a filament which extends over the solar edge to form a prominence.
You just need more practise in tuning to get a more "even" on band.
Watch to focus....
Onwards and Upwards,

[traveller]

Thanks Ken,
Filaprom, now there is a word of the day, had to say it a few times quietly first...
I won't have too much time to practice as I do have to return those borrowed scopes soon, and the Melbourne weather is well, Melbourne weather!
Bo

[Atmos]

And you're not going to see the sun for at least another week looking at the forecast!

[barx1963]

The double stack does produce quite noticeable "banding". I have never quite figured out tuning it out. I think it is just the way the tilt tune works.
The pressure tuned ones may work a bit better, have considered getting it upgraded by Lunt.
(BTW for those wondering it is my scope that Bo was using)

Malcolm

[johnnyt123]

Hi
Try out these links

http://www.imagingdeepsky.com/Tutorials/Solar_FullDisk.htm

https://www.youtube.com/watch?v=lhdvLOH00xU

I found them very helpful.
All the best.

regards

Johnny