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This was the main one - NGC4725 and others plus LoTr5 in Coma Berenices

Started by Roberto, Mar 11, 2021, 10:15:35

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Roberto

Hello All

This was the main target I was working on since February.  I wish I had taken more luminance but the weather is not looking great for the rest of the week ahead so I decided to process and be done with it.

I had last imaged NGC4725 in 2005 and my current equipment is not really suited to small galaxies but I wanted to capture this beautiful spiral, its weird companion NGC4747 but most importantly, the faint planetary LoTr 5 - PK339+88.1.

For full details: https://www.astrobin.com/dcn0ps/C/?nc=user

Check the annotated version for the many background galaxies and other brighter objects.

https://www.astrobin.com/full/dcn0ps/B/

Roberto



The Thing

Very nice Roberto, and not a green galaxy in sight! The planetary nebula is lovely at full resolution and very unusual to see.

Roberto

Thank you! Didn't mean to put you off with the galaxy colours!
The planetary is quite large but very faint also and a nice contrast to the more distant objects.

Roberto

MarkS


Roberto

Mark

It needed 3+ hours to show nicely in OIII.  There is some Ha signal "I've been told" but I didn't capture any as it only shows in the "wings" outside the main OIII surface.  It's a large nebula so it must be very difficult to observe and yes, not a common object. It's got an interesting variable as its centre:  https://en.wikipedia.org/wiki/LoTr_5

Roberto

NoelC

Woweee - just look at those tiny galaxies trailing off into infinite...
Really exciting Roberto very well done, never seen this before.
Some odd artifacts around the stars which I suspect is due to the sharpening processes - obviously you are working with some very faint detail.  Very interesting subjects and loads of detail.

Noel
Swapped telescopes for armchair.