ASTRO: NGC 7139

NGC 7139
Cepheus
Penryn, California
August 2003 / August 2010
FS-128 (ag, ST-4)
ST-10XME RGB 15 minute subs (2003)
M 250 @ f9.3 (ag, ST-4)
ST-10XME Lum 10 minute subs (2010)

A mag. 13 planetary with alimb brightened structure and a mag. 18
central star.

On 8/9/2010 1:19 PM, glen youman wrote:
NGC 7139
Cepheus
Penryn, California
August 2003 / August 2010
FS-128 (ag, ST-4)
ST-10XME RGB 15 minute subs (2003)
M 250 @ f9.3 (ag, ST-4)
ST-10XME Lum 10 minute subs (2010)

A mag. 13 planetary with alimb brightened structure and a mag. 18
central star.

You certainly have better seeing that I get on a typical night. A lot
more detail in this one than I could get. But the color is very
different. I had a very blue center with a red ring.
http://www.spacebanter.com/attachmen...tid=2208&stc=1

Not sure why the difference or which is more correct. I see it both
ways on the net.

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".

that's a cool shot of exactly the sort of target I had in mind when I made
the Stinger....

i'd like to try that target with all my exotic filters...


"glen youman" wrote in message
...

NGC 7139
Cepheus
Penryn, California
August 2003 / August 2010
FS-128 (ag, ST-4)
ST-10XME RGB 15 minute subs (2003)
M 250 @ f9.3 (ag, ST-4)
ST-10XME Lum 10 minute subs (2010)

A mag. 13 planetary with alimb brightened structure and a mag. 18
central star.

Using 2003 color data so I'm confident it is not G2V calibrated -
Color does need to be redone - original color data was obviously
collected during some bad seeing.


On Mon, 09 Aug 2010 14:12:38 -0500, Rick Johnson
wrote:

On 8/9/2010 1:19 PM, glen youman wrote:
NGC 7139
Cepheus
Penryn, California
August 2003 / August 2010
FS-128 (ag, ST-4)
ST-10XME RGB 15 minute subs (2003)
M 250 @ f9.3 (ag, ST-4)
ST-10XME Lum 10 minute subs (2010)

A mag. 13 planetary with alimb brightened structure and a mag. 18
central star.

You certainly have better seeing that I get on a typical night. A lot
more detail in this one than I could get. But the color is very
different. I had a very blue center with a red ring.
http://www.spacebanter.com/attachmen...tid=2208&stc=1

Not sure why the difference or which is more correct. I see it both
ways on the net.

Rick

Beautiful image. I only have an extremely poor version from 2001. Time for a
reshoot.

Stefan

"glen youman" schrieb im Newsbeitrag
...

NGC 7139
Cepheus
Penryn, California
August 2003 / August 2010
FS-128 (ag, ST-4)
ST-10XME RGB 15 minute subs (2003)
M 250 @ f9.3 (ag, ST-4)
ST-10XME Lum 10 minute subs (2010)

A mag. 13 planetary with alimb brightened structure and a mag. 18
central star.