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H-Alpha close-ups on 6 Sep

Posted: Mon Sep 09, 2019 11:19 pm
by yltansg
The setup - C11 with ARIES D-ERF, PST etalon, BF15, X2 barlow, Basler USB3 camera on another cloudy day:

Image

Only managed to capture 3 videos in 3 hours. Glad to see some fibrils in this one:
Image

Cheers

Alfred

Re: H-Alpha close-ups on 6 Sep

Posted: Mon Sep 09, 2019 11:48 pm
by Valery
Very nice, Alfred!

Too bad there is no good sunspot on the sun disk these days.

Valery.

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 10, 2019 12:01 am
by Starry Jack
Love the smoothness of your processing.

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 10, 2019 1:00 am
by gabrieli
Hi, Alfred

I'm glad you're finding interesting features on the disk.

Do you use your PST etalon at f/10 and then use a barlow or do you use an amplifying telecentric on the scope and then the PST etalon?

Lou

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 10, 2019 5:25 am
by marktownley
Great shot for the conditions Alfred. Lou asked exactly the question I was thinking of there...

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 10, 2019 10:20 am
by ffellah
Very nice close up, Alfred

Franco

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 10, 2019 11:00 am
by yltansg
Thanks Valery, Jack, Lou, Mark and Franco for your kind comments and encouragement.

Lou and Mark: I used a PST etalon at f/10 followed by a BF and barlow as shown below:

Image

Jack, I did very little for the post processing. Basically I applied an unsharp mask after some contrast adjustments in Photoshop on an image that was processed in AS!3 and ImPPG.

Cheers.

Alfred

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 10, 2019 3:49 pm
by MAURITS
Niceley done Alfred.

Re: H-Alpha close-ups on 6 Sep

Posted: Wed Sep 11, 2019 6:20 am
by Valery
I should probably add, that Alfred did only a very mild processing of the image. I took a freedom and have processed this image more deeply. A lot of more detail jumped out of the image!

Re: H-Alpha close-ups on 6 Sep

Posted: Wed Sep 11, 2019 3:32 pm
by eroel
Alfred, a very nice HR shot.
Best wishes,
Eric.

Re: H-Alpha close-ups on 6 Sep

Posted: Wed Sep 11, 2019 5:15 pm
by MalVeauX
Very nice Alfred!

Very best,

Re: H-Alpha close-ups on 6 Sep

Posted: Sat Sep 14, 2019 12:24 am
by yltansg
Thanks Eric and Marty.

Valery,

Glad to know that post-processing can bring out all the details that are captured in the video recording.

Alfred

Re: H-Alpha close-ups on 6 Sep

Posted: Mon Sep 16, 2019 11:32 am
by Montana
Very interesting post Alfred, I need to make a PST mod for my C11 this winter but I have no clue how to do it. I guess my first purchase needs to be a PST :)

Alexandra

Re: H-Alpha close-ups on 6 Sep

Posted: Tue Sep 17, 2019 11:13 am
by yltansg
Hi Alexandra,

All the best in your PST project. Do let me know if you need assistance.

Alfred