[avandonk]

Originally Posted by astroron

Bert,Try this one.
http://www.astro.washington.edu/users/balick/PNIC/
Also this may help
http://www.astronomy-mall.com/Advent...ce/abellpn.htm

I checked at the first site after converting to Galactic Coordinates and it is not listed there.

I can only see it in HA an NII not OIII. It is very dim 20 mag or dimmer. It does not show up on DSS-2-red. It is a nice annulus about 90'' outer diameter. It is not visible in a deep RGB.

Below is a screen capture in NII.

Bert