tornado33
18-02-2007, 05:53 PM
Hi all
Tried for an object of such low surface brightness it was only discovered by the UK ST Ha survey http://www.aao.gov.au/local/www/qap/halpha_pages.html
An actual image taken with it can be seen in a full article here
http://arxiv.org/abs/astro-ph/0405278
"PFP 1: A Large Annular Planetary Nebula Caught in the First Stages of ISM Interaction"
I may have just got the very brightest part of it as indicated with arrows. A faint slash of red. It may be the only full colour image taken of this object (though colour images could be assembled from red and blue Schmidt plates perhaps)
My image is 2x10 mins ISO 400, with Berts 300mm f2.8 lens, Idas uv/ir and Baader UHC-S filters.
Scott
Tried for an object of such low surface brightness it was only discovered by the UK ST Ha survey http://www.aao.gov.au/local/www/qap/halpha_pages.html
An actual image taken with it can be seen in a full article here
http://arxiv.org/abs/astro-ph/0405278
"PFP 1: A Large Annular Planetary Nebula Caught in the First Stages of ISM Interaction"
I may have just got the very brightest part of it as indicated with arrows. A faint slash of red. It may be the only full colour image taken of this object (though colour images could be assembled from red and blue Schmidt plates perhaps)
My image is 2x10 mins ISO 400, with Berts 300mm f2.8 lens, Idas uv/ir and Baader UHC-S filters.
Scott