I grabbed the wrong link. The one for distance is:
http://cdsads.u-strasbg.fr/cgi-bin/n...osetcook ie=1

The included one is a listing of all Abell "planetary" nebula. Quotes
because a few turned out to be something else.

Rick
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On 2/28/2014 12:04 AM, Rick Johnson wrote:
IC 1454/Abell 81 is the northernmost of the Abell planetary nebula
located in Cepheus only 9.56 degrees from the pole. There's a wide
range of distance values for this one. I'll go with the one at
http://www.astronomy-mall.com/Advent...e/abellcat.htm
which puts it a bit over 17,000 light-years away.

It is about 38" of arc across. Catalogs list it at 14 and 15th
magnitude with an 18.8 magnitude central star. Other than this I can't
find much on it. Even less on the field. Only a few of the galaxies
are in NED, none have much data let alone redshift data. Thus I didn't
prepare an annotated image. This lack of data is common for far
northern objects.

14" LX 200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

Rick


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