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-   -   The Sun (http://cellar.org/showthread.php?t=3434)

SteveDallas 05-25-2003 02:07 PM

The Sun
 
1 Attachment(s)
This image shows the sun at 5:24PM EDT on May 19 (the ONLY clear day of the entire month at my location).

Taken with my Meade ETX-70AT telescope, a Scopetronix STWA14 telescope eyepiece/digital camera adapter (intended to take pictures of the lunar eclipse!), Scopetronix solar filter, and Nikon Coolpix 999 camera.

SteveDallas 05-25-2003 02:18 PM

Hmmm. There's a fair amount of artifacting (concentric sircle patterns) in this image as I see it here. I do NOT see the same pattern on the original photo... it looks much better. Any thoughts on why it's different?

Tobiasly 05-25-2003 04:01 PM

The picture looks a little blurry to me, but I don't see the artifacting you're referring to. Are you using a browser that automatically resizes large pictures?

SteveDallas 05-25-2003 06:45 PM

I'm using Mozilla 1.3... I don't think it does. You're right, it's a hair blurry... it's not easy to get the exact focus right between the telescope, and the camera. I need some practice! :cool:

Billy 05-26-2003 12:02 AM

It loos like one cake
 
I desire to eat it. I think it must be sweet.

SteveDallas 05-26-2003 10:01 PM

1 Attachment(s)
Mmmmmmmm fooood!

Well maybe this is better. I used some processing software to combine elements of three separate exposures, then I sharpened and compressed the brightness range to make the sinspots darker--but it also added some grayness around the edges. (I'm not sure this exposure-combining technique is even worthwhile for solar pics. Usually it's used for things like star clusters where there is really just black and white and not much else.)

Undertoad 05-26-2003 10:55 PM

And when viewed from the side:

http://cellar.org/2003/flan.jpg

wolf 05-26-2003 11:02 PM

mmmmmm Flan .....

juju 05-26-2003 11:22 PM

ahh ahh yes to yes
to ahh ahh to yes
why the sun?
why the sun?

SteveDallas 05-27-2003 12:05 PM

Hey! You forgot to throw in some blackberries to stand in for the sunspots! :beer:

e unibus plurum 05-27-2003 03:05 PM

Quote:

Originally posted by SteveDallas
to make the sinspots darker
You devil, you!;)


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