ASTRO: Cocoon Nebula

Same night as M71 I was able to also image the Cocoon Nebula IC 5146.
Conditions had improved to near "normal" with magnitude 6.5 skies. So
this one came out about as good as I can expect to do. Yes, everything
went right this time! Amazing isn't it! It was going so well I
extended the time to two hours from the normal 40 minutes. Though I
tried processing the best 4 (40 minutes) and couldn't see much loss if
any so doubt I'll be increasing my time for most objects. Just didn't
make any difference I could see.

14" LX200R @ F/10, R=12x10', RGB=2x10' all binned 2x2, 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".

On Wed, 15 Aug 2007 22:54:09 -0500, Rick Johnson
wrote:

Same night as M71 I was able to also image the Cocoon Nebula IC 5146.
Conditions had improved to near "normal" with magnitude 6.5 skies. So
this one came out about as good as I can expect to do. Yes, everything
went right this time! Amazing isn't it! It was going so well I
extended the time to two hours from the normal 40 minutes. Though I
tried processing the best 4 (40 minutes) and couldn't see much loss if
any so doubt I'll be increasing my time for most objects. Just didn't
make any difference I could see.

14" LX200R @ F/10, R=12x10', RGB=2x10' all binned 2x2, STL-11000XM,
Paramount ME

All I can say is "wow".

I like the first one you posted. It looks more natural to me. I also
noticed that you have some galaxies in the field. This is amazing because
this is s dirty part of the sky.

Joe


"Rick Johnson" wrote in message
...
Same night as M71 I was able to also image the Cocoon Nebula IC 5146.
Conditions had improved to near "normal" with magnitude 6.5 skies. So
this one came out about as good as I can expect to do. Yes, everything
went right this time! Amazing isn't it! It was going so well I
extended the time to two hours from the normal 40 minutes. Though I
tried processing the best 4 (40 minutes) and couldn't see much loss if
any so doubt I'll be increasing my time for most objects. Just didn't
make any difference I could see.

14" LX200R @ F/10, R=12x10', RGB=2x10' all binned 2x2, 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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I forgot to mention those three little guys. Notice all three are below
it with nothing above. Must be less dust down there. The long dark
trail of B168 that extends from it goes to the northwest (upper right)
for what that may have to do with it. My FOV is too small to show it.

I processed the second version after seeing the APOD image taken with
the 3.6 meter Canadian French Hawaiian telescope on Mona Kea.
http://apod.nasa.gov/apod/ap021014.html They have a very different blue
that I see. Otherwise they compare surprisingly well for such a great
aperture difference. Now if I just had the seeing of Mona Kea!

Rick


J McBride wrote:
I like the first one you posted. It looks more natural to me. I also
noticed that you have some galaxies in the field. This is amazing because
this is s dirty part of the sky.

Joe


"Rick Johnson" wrote in message
...

Same night as M71 I was able to also image the Cocoon Nebula IC 5146.
Conditions had improved to near "normal" with magnitude 6.5 skies. So
this one came out about as good as I can expect to do. Yes, everything
went right this time! Amazing isn't it! It was going so well I
extended the time to two hours from the normal 40 minutes. Though I
tried processing the best 4 (40 minutes) and couldn't see much loss if
any so doubt I'll be increasing my time for most objects. Just didn't
make any difference I could see.

14" LX200R @ F/10, R=12x10', RGB=2x10' all binned 2x2, 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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thats a nice one Rick

you got the faint wispy nebulosity very nicely

there's a lot of reflection neb that I never get with my narrowband
filters....


"Rick Johnson" wrote in message
...
Same night as M71 I was able to also image the Cocoon Nebula IC 5146.
Conditions had improved to near "normal" with magnitude 6.5 skies. So
this one came out about as good as I can expect to do. Yes, everything
went right this time! Amazing isn't it! It was going so well I
extended the time to two hours from the normal 40 minutes. Though I
tried processing the best 4 (40 minutes) and couldn't see much loss if
any so doubt I'll be increasing my time for most objects. Just didn't
make any difference I could see.

14" LX200R @ F/10, R=12x10', RGB=2x10' all binned 2x2, 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".

"Rick Johnson" wrote
...
Same night as M71 I was able to also image the Cocoon Nebula IC 5146.
Conditions had improved to near "normal" with magnitude 6.5 skies. So
this one came out about as good as I can expect to do. Yes, everything
went right this time! Amazing isn't it! It was going so well I
extended the time to two hours from the normal 40 minutes. Though I
tried processing the best 4 (40 minutes) and couldn't see much loss.....

Wonderful image Rick!! It's interesting what you learned about what you need
for exposure time! I'll have to keep that in mind if I ever get our
equipment back on line.

I'm still slowly recovering from a computer crash (or is that "trash"), and
I've been doing a lot of visual "sidewalk" and star party stuff.

George N

"Rick Johnson" wrote

...... Now if I just had the seeing of Mona Kea!

....bring your O^2 bottle and winter parka.....

Last week at Stellafane I had a chance to talk with several guys who have
observed from the visitor center at Keck and they report that the conditions
are super. They also said that the observing area is open all night.

George N