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Sh2-254 through Sh2-258



 
 
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  #1  
Old May 29th 08, 06:28 AM posted to alt.binaries.pictures.astro
Rick Johnson[_3_]
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Posts: 262
Default Sh2-254 through Sh2-258

Left to right they a Sh2-258, Sh2-255 (also known as IC 2162),
Sh2-257, Sh2-256 and Sh2-254 the biggest but faintest of the bunch. I
used no H-alpha for this. I probably should have. Most photos you see
of it are in H-alpha. It looks a bit different in LRGB.

Each blob seems illuminated by its own central star. I don't know if
this really the case but sure looks like it. Sh2-255 is often called
the "Little Trifid". Not sure I see the similarity.

Seeing was poor this night so I've reduced the size to 1.5" per pixel
from my normal 1" per pixel. I'll try again next winter. Maybe
conditions will be better.

14" LX200R @ f/10, L=8x10', RGB=2x10 binned 3x3, STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

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  #2  
Old May 30th 08, 09:37 PM posted to alt.binaries.pictures.astro
Stefan Lilge
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Posts: 2,269
Default Sh2-254 through Sh2-258

Rick, beautiful image. At first I was a bit surprised that you shoot winter
objects in late spring, but this is probably left over from last winter.
I once did a Halpha version and although I am too lazy to look for this
image I am sure that I didn't get as deep as your broadband image.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
...
Left to right they a Sh2-258, Sh2-255 (also known as IC 2162),
Sh2-257, Sh2-256 and Sh2-254 the biggest but faintest of the bunch. I
used no H-alpha for this. I probably should have. Most photos you see
of it are in H-alpha. It looks a bit different in LRGB.

Each blob seems illuminated by its own central star. I don't know if
this really the case but sure looks like it. Sh2-255 is often called
the "Little Trifid". Not sure I see the similarity.

Seeing was poor this night so I've reduced the size to 1.5" per pixel
from my normal 1" per pixel. I'll try again next winter. Maybe
conditions will be better.

14" LX200R @ f/10, L=8x10', RGB=2x10 binned 3x3, STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".



  #3  
Old May 30th 08, 10:12 PM posted to alt.binaries.pictures.astro
Rick Johnson[_3_]
external usenet poster
 
Posts: 262
Default Sh2-254 through Sh2-258

I'm just now processing images like this one. At the time I had a light
leak in my system that put some nasty patterns across the image. The
leak was in the flats not the image itself. I'm just now getting to the
place I can process that stuff out. I almost killed this and a few yet
to be worked on as too far gone to process. But with all the clouds
this winter giving me time I finally figured out ways to handle this
problem. Though those still to process were hurt more than this image
was so the challenge goes up a few notches with them!

Rick


Stefan Lilge wrote:
Rick, beautiful image. At first I was a bit surprised that you shoot winter
objects in late spring, but this is probably left over from last winter.
I once did a Halpha version and although I am too lazy to look for this
image I am sure that I didn't get as deep as your broadband image.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
...

Left to right they a Sh2-258, Sh2-255 (also known as IC 2162),
Sh2-257, Sh2-256 and Sh2-254 the biggest but faintest of the bunch. I
used no H-alpha for this. I probably should have. Most photos you see
of it are in H-alpha. It looks a bit different in LRGB.

Each blob seems illuminated by its own central star. I don't know if
this really the case but sure looks like it. Sh2-255 is often called
the "Little Trifid". Not sure I see the similarity.

Seeing was poor this night so I've reduced the size to 1.5" per pixel
from my normal 1" per pixel. I'll try again next winter. Maybe
conditions will be better.

14" LX200R @ f/10, L=8x10', RGB=2x10 binned 3x3, STL-11000XM, Paramount ME

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".





--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

  #4  
Old May 31st 08, 07:31 PM posted to alt.binaries.pictures.astro
John N. Gretchen III
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Posts: 460
Default Sh2-254 through Sh2-258

Very nice Rick!


John N. Gretchen III
N5JNG NCS304
http://www.tisd.net/~jng3
 




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