NGC 5128 with Houghys cooled DSLR

[tornado33]

Hi
Got NGC 5128 with Houghys cooled , modded 350D tonight. Longer subs this time, 15 mins each, 4 of. 1 hour total time
uv/ir filter, 10 inch f5.6 scope. Hand off axis guided. Processed as usual in Iris with dark, flats and offset frames, then Photoshop and PSP. Taken from my Wallsend backyard, fairly light polluted skies.
Scott

[Dennis]

A terrific image Scott - looks like H0ughy's camera is a great performer, not withstanding your outstanding skills of course!

Cheers

Dennis

[iceman]

That's an amazing image, very beautiful. Well done team novacastrian!

[[1ponders]]

Nicely done Scott :clap:

Will h0ughy have his camera back by the time he comes up to the Qld Astrofest? ;)

:P

[Garyh]

Thats a very nice one Scott!!!, the deeper subs really help with the faint outer parts of the galaxy..well processed as well!

[JohnH]

I have bust my chops on that one a few times - I love the colors - did you compensate for the extra red sensitivity?

[RB]

Wow look at the detail !
Amazing work Scott.

:thumbsup: :thumbsup:

[tornado33]

Many thanks all.
In Iris, I draw a small box over a blank area of sky without stars, then type in "white" in command line box, it instantly neutralizes the sky background, compensating for any colour casts. It works great :)
Scott

[Ric]

That's an awesome image Scott, very crisp and detailed.

A very enjoyable image.

[tornado33]

To show the incredible difference cooling makes. Here is a version that was just aligned and stacked with no dark subtraction at all! Colour balance is a bit off, but where are the hot pixels? very few exist. I evened out the field with Gradient xterminator, that removed most of the amp glow too, but it wouldnot remove hot pixels. When I examined the 15 minute dark I also took, I could only see the odd "deviant pixels" those that are always hot regardless of temperature, the background of scattered coloured pixels are totally gone, its astounding. I reckon a 24 hour single image would have less noise than a 1 hour one at room temperature.
Scott

[h0ughy]

you been playing with the toys again Scott??

[EzyStyles]

thats a beautiful shot scott. the colours are top. i tried balancing the way you do in iris but didnt work for me. what format should it be in? .tif?

[tornado33]

Thanks :)
IRIS processes in .PIC format, I then save it as a .tiff, then open it in Photoshop and finish processing from there. Usually the white command works great in IRIS, as it makes the sky background neutral gray. I will do processing like colour and dymanic stretching in Iris then save as tiff and finish up in Photoshop.
Scott

[Dr Nick]

Wow!
Magnificent! ;)
Oh, and Houghy, if you read this, I'll have one too...... :D

[alan meehan]

thats truly alovely shot scott,can i get a copy to enlarge,this is one of the best i have seen well done

[tornado33]

Thanks all
Heres a big version
http://www.iceinspace.com.au/uploads/ngc5128%204x15minsiso200%2010inchco oled.jpg
enjoy
Scott