The Sun comes alive!

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Image Title: The Sun comes alive!

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By: Pierre Martin
Copyright ©2005

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Photographer	Pierre Martin {Karma:3355}
Project	#43 Unusual Vision	Camera Model	Canon 300D
Categories	Abstracts Nature From The Field	Film Format
Portfolio		Lens	Canon 35 mm f/2
Uploaded	9/27/2005	Film / Memory Type	Lexar 1GB
		ISO / Film Speed	16
Views	484	Shutter	1/30
Favorites	0	Aperture	f/2.0
Critiques	12	Rating	Pending / 1 Ratings
Location	City - Tobermory State - ONTARIO Country - Canada
About	When viewed through a Hydrogen Alpha (Ha) filter, the sun comes alive! The telescope (Coronado PST) used to take this photo is equipped with a very narrow bandwith filter centered on the Hydrogen Alpha spectral line (6562 Angstroms), which not only reduces the intensity of the sunlight to safe levels, but eliminates much of the photosphere's contribution to the image. (The photosphere is the visible surface of the Sun we are most familiar with, as seen with traditional solar filters). With an h-alpha filter, the Sun appears orange-reddish and looks VERY active. Solar prominences (eruptions of hot gases around the limb of the Sun), sunspots, faculae (bright regions), filaments (strands of cool gas suspended over the Sun's surface) as well as Spicules (the grass-like patterns of gas seen throughout the solar atmosphere). These features are exciting to watch since they change within an hour and sometimes within minutes! This composite of two images (one photo optimized for the Sun's surface details and the other for the prominences along the edges) was taken on July 19, 2005. ISO 400. Afocal method (camera with lens attached pointed into the eyepiece of telescope).

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There are 12 Comments in 1 Pages
1

Pierre Martin {K:3355} 11/27/2006

Hello Dave,

Thanks for the comment. Unfortunately, we were totally clouded out for the Mercury transit. I travelled about 3 hours hoping to find a break in the overcast but I was not that lucky.

Next time!

- Pierre

Dave Holland {K:13074} 11/2/2006

Great image, Pierre. So, are you going to be there Nov 8th?

Dave
(Lethbridge Astronomy society, Alberta).

Pierre Martin {K:3355} 10/17/2005

Thanks, Mary!

I hope to try this again, soon, if we ever get a chance to see the Sun again! ;0)

- Pierre

Mary Brown

{K:71879} 10/16/2005

I don't know if this will show upo twice. It seemed to go through but then it wasn't there. Anyway, Pierre, this is a marvelous shot! Great information, also. Awesome!
Mary

Pierre Martin {K:3355} 10/10/2005

Hi Brien!

Thanks for the good comment!

Pierre Martin {K:3355} 10/10/2005

Thanks for the great comment Shane! It took a fair amount of work getting the two images just right, but my goal was to try and make it look like the way I remember it through the scope. I realize that my technique of simply hand-holding the camera and lens through the eyepiece is not ideal and there are better ways. I need to try this again soon.

Pierre Martin {K:3355} 10/10/2005

Thanks Mervo! I hope to try some more of this solar imaging soon...

Pierre Martin {K:3355} 10/10/2005

Thanks Susie!

Brien Marshall {K:23} 10/6/2005

Hey Pierre,
Very dramatic -- I've never seen the sun in that light before...so to speak! Excellent shot.

Shane Finnigan

{K:1990} 9/30/2005

Beautifully composed Pierre. I love the fact that you can't see your stitching of the two images. Usually in these shots one can detect the separation of images at the outer perimeter of the sun, and it makes for a distracting artifact. In yours, you've blended it expertly and it makes one feel as if you are seeing it all as if through a scope. Great resolution and detail, and the colours are quite striking. Very well done!

Mervo {K:8643} 9/27/2005

Excellent, something that we don't really get to see all that often.

Susie OConnor {K:34798} 9/27/2005

Beautiful Pierre. Thanks for sharing!

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