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View Full Version : Anyone use Photoshop for stacking Sunspots?


Abeverage
7th of May 2012 (Mon), 16:12
I have taken a whole slew of photos and I am thinking of stacking them to bring out some more detail.

I have regi-stax and Photoshop CS5 but I have yet to learn how to do it. Any tips? Did a quick search and didn't see this topic yet.

AB

ameerat42
7th of May 2012 (Mon), 18:03
Not for sunspots, but if I sound ignorant, my apologies. I would say, though, that I don't see how this would help bring out detail in them. Sure, in shots with different parts of the subject in narrow bands of sharp the process yields continuous detail. I would expect it to smooth out the likes of noise, but...

I'd be interested to know.
Am.

SteveInNZ
7th of May 2012 (Mon), 18:31
I did some stacks of a sunspot years ago (when they were a rare thing). It was a white-light shot (through a solar filter) and stacking brought out the penumbra quite well. There was also some surface texture but that may have just as easily been an artifact. I used registax to stack and then curves & levels in CS3. Pretty much the same approach to stacking a lunar image.
I couldn't find it with a quick look but if I do, I'll post it here.

Don't expect anything like the H-alpha scopes get though.

Toxic Coolaid
7th of May 2012 (Mon), 23:33
Here is a good registax tutorial. But I've only used video for Registax

http://www.sunspot51.com/Registax6/Registax6.htm

Abeverage
8th of May 2012 (Tue), 13:19
I did some stacks of a sunspot years ago (when they were a rare thing). It was a white-light shot (through a solar filter) and stacking brought out the penumbra quite well. There was also some surface texture but that may have just as easily been an artifact. I used registax to stack and then curves & levels in CS3. Pretty much the same approach to stacking a lunar image.
I couldn't find it with a quick look but if I do, I'll post it here.

Don't expect anything like the H-alpha scopes get though.


Yeah I think that is what I need is like a lunar stack tut! I want to use PS because of the size of photos.

Thanks if you can find that!

Abeverage
8th of May 2012 (Tue), 13:19
Here is a good registax tutorial. But I've only used video for Registax

http://www.sunspot51.com/Registax6/Registax6.htm

Cool I did do some video so I might try this! Thanks!

SteveInNZ
8th of May 2012 (Tue), 17:22
Found it. Must give it another go sometime. Maybe give it yellow/orange tint or something.

http://farm8.staticflickr.com/7229/7161012686_ec3a9085b6.jpg (http://www.flickr.com/photos/stevetla/7161012686/)
sunspot_11089_2010_07_24 (http://www.flickr.com/photos/stevetla/7161012686/) by stevetla (http://www.flickr.com/people/stevetla/), on Flickr

Sunspot #11809 24 July 2010
Taken from 20sec of 640x480 video (Canon S3IS camera) afocally with 30mm eyepiece in 8" f/10 SCT. Processed in Registax & CS3.

Abeverage
9th of May 2012 (Wed), 13:54
Found it. Must give it another go sometime. Maybe give it yellow/orange tint or something.

http://farm8.staticflickr.com/7229/7161012686_ec3a9085b6.jpg (http://www.flickr.com/photos/stevetla/7161012686/)
sunspot_11089_2010_07_24 (http://www.flickr.com/photos/stevetla/7161012686/) by stevetla (http://www.flickr.com/people/stevetla/), on Flickr

Sunspot #11809 24 July 2010
Taken from 20sec of 640x480 video (Canon S3IS camera) afocally with 30mm eyepiece in 8" f/10 SCT. Processed in Registax & CS3.

Very nice amount of detail!