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ASTRO: The Blue Snowball



 
 
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  #1  
Old October 4th 07, 03:34 PM posted to alt.binaries.pictures.astro
J McBride
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Posts: 274
Default ASTRO: The Blue Snowball

It wasn't the best night for shooting small objects but...I take what I can
get. For this object less is more. The longer exposures tend to blow the
inner arc out and flattens the look of the nebula. This is a 1 minute worth
of data with 2 subs taken through my C-11 @ f/10 with the Canon XTi @
800asa.


Joe





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  #2  
Old October 4th 07, 05:50 PM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
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Posts: 3,085
Default ASTRO: The Blue Snowball



J McBride wrote:
It wasn't the best night for shooting small objects but...I take what I can
get. For this object less is more. The longer exposures tend to blow the
inner arc out and flattens the look of the nebula. This is a 1 minute worth
of data with 2 subs taken through my C-11 @ f/10 with the Canon XTi @
800asa.


Joe


I've tried it a few times but seeing never was up to it here. When
seeing is good I have other targets that I seem to go to instead.

What is the bit depth of the XTi?

Processing some objects can be a challenge. I have more trouble with
faint ones going flat on me if I try to push too far into the faint
region. I can do it but it takes time to find the right curves to use.

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 October 4th 07, 06:22 PM posted to alt.binaries.pictures.astro
J McBride
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Posts: 274
Default ASTRO: The Blue Snowball

I see that it is 12 bit


Joe



"Rick Johnson" wrote in message
...


J McBride wrote:
It wasn't the best night for shooting small objects but...I take what I

can
get. For this object less is more. The longer exposures tend to blow

the
inner arc out and flattens the look of the nebula. This is a 1 minute

worth
of data with 2 subs taken through my C-11 @ f/10 with the Canon XTi @
800asa.


Joe


I've tried it a few times but seeing never was up to it here. When
seeing is good I have other targets that I seem to go to instead.

What is the bit depth of the XTi?

Processing some objects can be a challenge. I have more trouble with
faint ones going flat on me if I try to push too far into the faint
region. I can do it but it takes time to find the right curves to use.

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".



  #4  
Old October 6th 07, 03:12 PM posted to alt.binaries.pictures.astro
Stefan Lilge
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Posts: 2,269
Default ASTRO: The Blue Snowball

Nice picture. This nebula is bright enough to look good in short exposures.

Stefan

"J McBride" schrieb im Newsbeitrag
...
It wasn't the best night for shooting small objects but...I take what I
can
get. For this object less is more. The longer exposures tend to blow the
inner arc out and flattens the look of the nebula. This is a 1 minute
worth
of data with 2 subs taken through my C-11 @ f/10 with the Canon XTi @
800asa.


Joe





  #5  
Old October 6th 07, 04:36 PM posted to alt.binaries.pictures.astro
Richard Crisp[_1_]
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Posts: 985
Default ASTRO: The Blue Snowball

cool shot of a cool object Joe

This is one object I've never imaged. Someday....


"J McBride" wrote in message
...
It wasn't the best night for shooting small objects but...I take what I
can
get. For this object less is more. The longer exposures tend to blow the
inner arc out and flattens the look of the nebula. This is a 1 minute
worth
of data with 2 subs taken through my C-11 @ f/10 with the Canon XTi @
800asa.


Joe






 




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