View Full Version here: : IC443 - Jelly Fish Nebula in wavelength ordered palette

18-01-2012, 05:43 AM
This is the first full narrow band image that I have done with my new ML8300 camera as weather hasn't been playing ball lately. It is of IC443 taken in the wavelength ordered palette of SII:Ha:OIII = R:G:B (commonly known as the HST palette). It was taken over three nights with 10x30 minutes for SII, 11x30 minutes for Ha and 9x30 minutes for OIII. We have had a lot of problems with freezing fog recently and the seeing conditions were very hit and miss on all three nights with the FWHM number varying between 1.3 and 2.4 from one minute to the next, it made focusing quite interesting!
Taken with Takahashi FSQ106ED f5 and FLI ML8300 on a Paramount ME with auto guiding by a lodestar and OAG using dithering. I may add some more OIII data as this was very weak and needed to be pushed more aggressively in the processing so there is a bit of noise in the image but overall I'm fairly pleased with the results. I added the difraction spike on after for extra effect, the ML8300 and FSQ combination often gives smaller difraction spikes (?due to the microlenses on the chip)
I have had a few goes at this subject over the last few years with different scope/camera combinations, these can be seen on my website http://www.imagingtheheavens.co.uk for comparison.
There is a full size version at the following link
Thanks for looking
Best wishes

18-01-2012, 10:21 AM
Very nice, what program did u use for the dithering ?

18-01-2012, 10:28 AM
Thanks, I use Maxim DL5 for all acquisition, camera control, guiding and dithering, calibration, stacking , colour combining and initial gamma stretching then everything else is done in Photoshop PS5
Best wishes

18-01-2012, 12:27 PM
That's a great result Gordo :thumbsup: Lovely detail despite the seeing and (as I love animals) the Jellyfish shape is very prominent :P


18-01-2012, 12:44 PM
That's a wonderful image Gordon.

Very nicely done.

18-01-2012, 01:04 PM
That's a great image Gordon.


18-01-2012, 01:18 PM
Nice image! I ear-marked this a few days ago as a potential target for when I get home in a couple of weeks. This gives me something to aim to.

18-01-2012, 09:00 PM
I love the comparison picture Mike, that is a great example to put next to it if someone says they can't see the jelly fish:)
Best wishes

18-01-2012, 10:38 PM
Great image and detail.

18-01-2012, 10:43 PM
That's pretty darn excellent in my opinion. Of course more data would make it even better but you never seem to have enough with narrowband images.



19-01-2012, 12:02 AM
Simply stunning, great result! I like the colours very much.

19-01-2012, 12:08 PM
Beautiful shot. It really looks like a jellyfish. :thumbsup:

Ross G
22-01-2012, 10:41 AM
A fantastic photo Gordon.

Amaziing deatail and I love the composition.