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tilbrook@rbe.ne
29-01-2014, 06:47 PM
Hi,

Not much sleep to be had with this bloody heatwave!!:mad2:

So may as well do some imaging :),cooler box is struggling a bit though.

Here's the result, a 2 panel mosaic of the Chameleon Cloud Complex which now includes IC 2631 on the left. On the right in the field Ced 111 white in colour, Ced 110 blue reflection nebula and GN11.07.3 the small pointed red nebula. The dark nebula is Be 144.
Still need more data!!!

Equipment used.
8” F/4 astrograph , baader type III coma corrector,. HEQ Pro 5 mount, orion mini guider.
Camera.
Unmodded Cannon 1100D, Cooler box.
33 x 8 minute subs ISO 800 , flats and bias frames applied.
Stacked in Deep Sky Stacker . Stitched in ICE, Processed in Photoshop 7.

Cheers,

Justin.

cometcatcher
29-01-2014, 09:06 PM
Looking good Justin. Will you be adding any more panels? How many degrees is the cooler box helping in the hot weather?

nebulosity.
29-01-2014, 09:28 PM
Gee, thats nice Justin :thumbsup: Is this the dusty region up in the top righthand corner of my Doodad image?? I think it might be :)

It's a shame you got the heatwave, the last few nights have been really chilly here ;) :lol:

LewisM
29-01-2014, 10:16 PM
Corker.

Larryp
29-01-2014, 11:16 PM
Good stuff, Justin :thumbsup:

strongmanmike
30-01-2014, 12:47 AM
Yeah Great Stuff indeed Justin and what a good use of sweltering nights :thumbsup:

What are your skies like?

Mike

gregbradley
30-01-2014, 08:08 AM
That's very good Justin. Mosaics are not easy.

Greg.

IanP
30-01-2014, 11:46 AM
Very nice shot Justin ..
:thumbsup: :thumbsup: :thumbsup:

For me the biggest achievement here is not-overexposed 8min subs @ Iso800 :clap:

tilbrook@rbe.ne
31-01-2014, 01:26 PM
Sorry for the late reply.

I've been changing my superannuation and income protection insurance.
I was given a 40mm thick folder full of weasel words and rubbery figures to try and get my head around.:confused2:
Long story short, I'm going to see my accountant before I go :screwy:.



Thanks Ian!

The 1100D works well at ISO 800, have to be careful at higher ISO's.



Thanks Greg!

Nice of you to say, always good to have your input as you know your mosaics.
Must admit I'm getting hooked on mosaics!:D



Thanks Mike!


Generally dark, good transparency especially after a rain.
There is light pollution glow from Adelaide, a good night it only comes up 5 degrees, average is about 10, 15 to 20 up is time to go inside.




Thanks Laurie!



Thanks Lewis!



Thanks Jo!

Yep, definitely the one.
Can you express post some of that chilly my way.:lol:



Thanks Kevin!

Think I'll leave this at two panels.
These hot nights it struggles to cool down 12 deg C below ambient, cooler nights 15 to 17 max.

Still any cooling is good and the 1100D is not bad noise wise at 11C.

Cheers,

Justin.

strongmanmike
31-01-2014, 02:11 PM
So your skies are quite dark then? How far are you from Adelaide as the crow flies? A horizon glow that reaches even to 20deg up is pretty bloody good :) Canberra's glow from here reaches about twice that :sadeyes: it gets a bit lower after midnight when many idiot paranoid non astronomers :mad2: turn off their security?? Christmas in late January, driveway, dog kennel and backyard illuminating lights :rolleyes: :lol:

Mike

tilbrook@rbe.ne
31-01-2014, 05:40 PM
Yep, don't no how to express it in darknesses :question: Hmmm new word. :P

Adelaide is about 110 kms as the crow flies.
Ah yes, nothing like plenty security lights so the thieves can see what they are pinching.
I had an idiot neighbour when I lived in Clare, he had no fewer than 6 300 watt security lights across the front of his house and all would come on when a moth flew past.:screwy:

Cheers,

Justin.

astronobob
31-01-2014, 10:06 PM
That's a unique piece of sky you've captured there Justin, Top Framing and very nice work :cool2:

tilbrook@rbe.ne
31-01-2014, 10:37 PM
Thanks Bob!

Love to see this done with your setup.

Cheers,

Justin.

Stevec35
31-01-2014, 11:04 PM
I reckon that looks really good Justin. Nicely processed and good framing.

Cheers

Steve

Dealy
31-01-2014, 11:16 PM
Nice shot Justin.

Can you post some info on the cooler box, I'm very interested. :thumbsup:

Kev

tilbrook@rbe.ne
01-02-2014, 11:00 AM
Thanks Steve!

For once the camera was orientated perfectly for the two frames to be stitched together. That's the problem doing mosaics, other wise I end taking more frame than needed.



Thanks Kev!

Here's a link to Orion's cooler box.
http://www.telescope.com/Astrophotography/Astrophotography-Accessories/Orion-DSLR-Camera-Cooler/c/4/sc/61/p/101916.uts

I've had two of them, the first one gradually sopped cooling so I send it back. The 2nd I purchased from an IIS member, still working but I had to replace the internal fan after a while.

Cooling realistically is to 17c below ambient on cooler nights.
I've also modified how it fixes together, got rid of the 4 annoying plastic screws and made a elastic strap with Velcro that goes around the box.

A lot quicker to make adjustments to the camera if needed.

Cheers,

Justin.

Shiraz
01-02-2014, 04:14 PM
very pretty image Justin - crikey you do well with that 1100D. regards ray

tilbrook@rbe.ne
02-02-2014, 04:28 PM
Thanks Ray!

Getting a lot of practise, one day may even go for my P plates.:D

Cheers,

Justin.

tilbrook@rbe.ne
03-02-2014, 05:59 PM
One thing I forgot to say, they are a bugger to balance and place quite a bit of strain on a standard focuser.
You need to find out whether your setup can take the extra load.

Cheers,

Justin.