CaK, 23022019. Double plus triple.

this is the main message area for anything solar :)
Post Reply
bart1805
Almost There...
Almost There...
Posts: 563
Joined: Mon Feb 06, 2017 9:04 pm
Location: The Netherlands

CaK, 23022019. Double plus triple.

Post by bart1805 » Sat Feb 23, 2019 9:05 pm

Had another try at CaK today.
100mm ED f/9_Lunt Filters_one Baader K-Line_two PST#1 filters_ASI290mm.

Image

Tried to image at about f/14, but miscalculated (again...). Here is the image at about f/12.

Image

Tried triplestacking, with the Lunt B600 in the imagetrain. At first I thought there was no improvement. But processed it again, curious what you think about it.

Image

Thanks for watching! Bart.
Last edited by bart1805 on Sun Feb 24, 2019 2:56 pm, edited 2 times in total.

User avatar
MAURITS
Almost There...
Almost There...
Posts: 809
Joined: Tue Nov 27, 2018 4:37 pm
Location: Belgium
Contact:

Re: CaK, 27022019

Post by MAURITS » Sat Feb 23, 2019 9:19 pm

Nice to see Bart ...
Regards,
Maurits

Vista del Cielo Observatory

www.vistadelcielo.be

User avatar
David_The_Bears_Fan
Almost There...
Almost There...
Posts: 511
Joined: Sun Jun 29, 2014 6:45 pm
Location: Banbury, UK

Re: CaK, 27022019. Double plus triple.

Post by David_The_Bears_Fan » Sat Feb 23, 2019 10:32 pm

Nice images Bart
David

Kit: Skywatcher Evostar 120 on Celestron CG-4 / Coronado PST / Lunt B1200 Ca-K Module / Lacerta Herschel Wedge/ Canon 1100D & 77D / ZWO ASI178MM & 120MC-S / QHY5-II Mono

george9
Ohhhhhh My!
Ohhhhhh My!
Posts: 95
Joined: Tue Jan 26, 2016 1:28 am

Re: CaK, 27022019. Double plus triple.

Post by george9 » Sun Feb 24, 2019 3:02 am

All look good, Bart. Does the third one have a little more gradation of brightnesses in the active region compared to the other two? The first definitely has the least. The second is similar to the third in that respect, but may be a little more washed out in the rest of the disk (non-AR). So that would favor the third overall. But may depend on focus, processing, image scale, etc.

George

User avatar
marktownley
Librarian
Librarian
Posts: 25961
Joined: Tue Oct 18, 2011 5:27 pm
Location: Brierley Hills, UK
Contact:

Re: CaK, 27022019. Double plus triple.

Post by marktownley » Sun Feb 24, 2019 7:26 am

The effect is subtle Bart. For me it was a much bigger improvement going from ss CaK to ds CaK. I found when I went to ts CaK the exposure time became just too long. The bright points appear 'brighter' in the TS though.
Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

bart1805
Almost There...
Almost There...
Posts: 563
Joined: Mon Feb 06, 2017 9:04 pm
Location: The Netherlands

Re: CaK, 27022019. Double plus triple.

Post by bart1805 » Sun Feb 24, 2019 8:11 am

george9 wrote:
Sun Feb 24, 2019 3:02 am
All look good, Bart. Does the third one have a little more gradation of brightnesses in the active region compared to the other two? The first definitely has the least. The second is similar to the third in that respect, but may be a little more washed out in the rest of the disk (non-AR). So that would favor the third overall. But may depend on focus, processing, image scale, etc.

George
I think you are right George. But the comparison is not completely fair I realised. They both are triple stacked, but the last one also includes half a Baader K-line.

Agree what you say Mark. From SS to DS is the biggest difference. Triple with the K-line was 10ms and a gain setting of about 190 (have to check it out). So the SSM was very useful.

User avatar
Montana
Way More Fun to Share It!!
Way More Fun to Share It!!
Posts: 20682
Joined: Mon Oct 17, 2011 5:25 pm
Location: Cheshire, UK

Re: CaK, 23022019. Double plus triple.

Post by Montana » Sun Feb 24, 2019 6:38 pm

I just think they are all remarkable to get such clarity and sharp detail :bow :bow :bow

Alexandra

User avatar
Bob Yoesle
Almost There...
Almost There...
Posts: 536
Joined: Thu Mar 08, 2012 7:24 pm

Re: CaK, 23022019. Double plus triple.

Post by Bob Yoesle » Sun Feb 24, 2019 7:41 pm

HI Bart,

Your results look similar to mine, and I can definitely see more detail at the limb with the triple stack.
Diagonally parked in a parallel universe.

Curiosity is the father of knowledge; uncertainty is the mother of wisdom.

Goldendale Observatory

Dark-Sky Defenders

Post Reply

Who is online

Users browsing this forum: No registered users and 6 guests