IC443 - Jellyfish Nebula in HST palette

[Paramount]

Hi
I just finished this a few nights ago, this has taken several nights to do due to weather and false starts, it is 24x10 minutes Ha, 26x10 minutes OIII and 22x10 minutes SII. The seeing conditions were very poor for the SII data with some very thin misty cloud throughout the evening. This was taken with the Televue NP127is/FLI imaging system that I'm testing, this is set up on my Paramount ME with auto guiding taken care of by an Officine Stellare Falco guidescope and Starlight Xpress Lodestar camera. Image acquisition, guiding and stacking was done in Maxim DL5, the images were registered with Registar and processing was done with Photoshop CC.
The full size image can be seen at the following link
http://i.pbase.com/o9/29/869929/1/154765888.euHYVpzp.JellyfishHSTfina l.jpg
Thanks for looking
Best wishes
Gordon

[gregbradley]

Beautiful!

Greg.

[pluto]

Great image! :eyepop:

[alistairsam]

Thats superb Gordon, any idea why the halo around the two bright stars are in different directions and off-centre? are they due to reflections?

Cheers
Alistair

[atalas]

Fine work on a lovely field Gordon.

[Paramount]

Hi Alistair
The halos are due to some reflection in the optical train and could be due to the telescope, filters or the camera window, as the bright stars go towards the edges of the field so the halos go off centre in the same direction as seen here, the seeing wasn't good when I took a lot of the data and I've found that halos always tend to be worse in these circumstances in the same way as you often see a faint halo round the moon when there is some thin mist in the sky, I could process them out or minimise them but I didn't want it to affect the rest of the image
Best wishes
Gordon

[Andre27]

That is so good it is scary.

[AG Hybrid]

Very special picture. Well done.