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View Full Version here: : Finding new PN's in plain Sight


avandonk
05-03-2019, 06:45 PM
Here is an image of very deep OIII minus continuum stars.

https://www.flickr.com/photos/34386396@N08/46563343274/in/dateposted/


There are quite a few putative PN's in this field. I bet none of them have been catalogued.

It will take verification at far longer focal lengths to get to the reality.


Bert

glenc
20-03-2019, 02:03 AM
Are they Abell PN?
http://www.deepsky-visuell.de/Projekte/AbellPN_E.htm

h0ughy
20-03-2019, 02:46 PM
Wow first thing I did was look up what putative means then looked at your image Bert.
It's a lot to take in, would one of the mapping utilities identify many of them or will they be called bert1 Bert2 etc;)

So much in that shot :thumbsup:

gaseous
20-03-2019, 03:21 PM
Sorry to be a dunderhead - what is "minus continuum"?

avandonk
21-03-2019, 02:58 PM
It only occurred to me after I looked at the differential image David that this may be a way of finding dim PN's in a very cluttered star field with lots of nebulousity.

I do not have the knowledge to identify or patience to check on whether an object is already known. I offer it to all of you as an other method of finding unknown objects.

Anyone is welcome to use my images to hunt these down. There are enough Berts in my family without adding more to the sky.

Did you see the NII-Cont version?

https://www.flickr.com/photos/34386396@N08/46500653715/in/photostream/


Bert

tornado33
30-03-2019, 04:52 PM
Wow, very impressive