My Horsehead neb.

tornado33 · #1 10-12-2005, 01:59 PM

Had a go at the good ol Horsehead.
[IMG]http://www.iceinspace.com.au/forum/attachment.php?attachmentid=7180&st c=1
Its 3 x 10 mins ISO 1600, 10 inchf5.6 scope, EOS 300D, MPCC and UHCS filter. Dark subtracted in IRIS.
Its a hard object for unmodified DSLRs as nearly all the light is H Alpha only (maybe a hint of H Beta). I must see how a H Beta filter goes on it one of these days

.
Stacking and final processing done in Photoshop and Noiseware.
It was almost warm for these shots, about 18 degrees Id say.
Scott

RB (Andrew) · #2 10-12-2005, 02:28 PM

Hey awesome shot Scott.
Nicely focused and guided.
Amazing to see the detail the 300D picked up especially since the temp was warm.

h0ughy (David) · #3 10-12-2005, 02:48 PM

Lovely scott just beautiful. Have you seen Strikers with the 20da?

tornado33 · #4 10-12-2005, 03:23 PM

Thanks folks.
IRIS does do a pretty good job of dark subtracting.
Yes Id love a 20DA or even a modified 300D

The live focussing of a 20DS would be nice too.
Scott

[1ponders] (Paul) · #5 10-12-2005, 03:30 PM

Nice shot Scott. Good to see you're still getting some sky time with all the "charming" weather around.

I'm thinking about putting a pier in the back yard. Do you leave your mount permanently attached to the pier or do you remove it after each session. If you leave it how do you protect it from the weather?

h0ughy (David) · #6 10-12-2005, 03:37 PM

Quote:

Originally Posted by [1ponders]

Nice shot Scott. Good to see you're still getting some sky time with all the "charming" weather around.

I'm thinking about putting a pier in the back yard. Do you leave your mount permanently attached to the pier or do you remove it after each session. If you leave it how do you protect it from the weather?

this is rather a technical issue Paul. he gets the protection via a system of neoprene insertion barrier with a polymer modified barrier protection system with automatic dehumidifyer.

yes thats right he has a plastic bag and a upturned garbage container! moisture driven off by the suns heat!!!

Striker (Tony) · #7 10-12-2005, 03:48 PM

Nice horsy Scott...and well framed.

tornado33 · #8 10-12-2005, 05:24 PM

Thanks all .
Yep I remove the scoipe from the mount cradle and take it inside. I cover the plastic drive wheel and motor with rags, put a wheelie bin over the whole mount, than put on an upturned garabe bin, that way even in a torrential storm it will be protected, even from hail. The counterweights are left on as well, so nothing short of a tornado would move it. The yard is fenced in on all but the front side and cant be seen from the front of the house, and with the heavy counterweights on, (and a little neighbours dog that is an excellent watchdog) means security is pretty good

The rough part of the setup is that the legs sit on lumps of concrete on the grass, its had months to settle and is quite stable now.
Heres a pic of it in its current position but before I put the lumps of concrete under the 3 legs. http://www.users.on.net/~josiah/temp/scope.jpg
Scott

[1ponders] (Paul) · #9 10-12-2005, 06:49 PM

thanks Scott. That's a serious finderscope you've got there

seeker372011 (Narayan) · #10 10-12-2005, 06:50 PM

nice shot Scott..makes me want to try the HH again

PhotonCollector (Paul) · #11 12-12-2005, 06:02 PM

Wow Scott, this is really a great image -

you've done very well.

I love it !

Paul

xelasnave · #12 15-12-2005, 08:06 PM

I saw this when you first posted and meant to say then I think that is terriffic. Its the one I want to really perfect but it will be a while before I can manage as good as this one
alex

tornado33 · #13 15-12-2005, 10:23 PM

Many thanks all

Its always been the holy grail to get even a half decent Horsehead pic

Scott

PhotonCollector (Paul) · #14 15-12-2005, 10:39 PM

Quote:

Originally Posted by xelasnave

I saw this when you first posted and meant to say then I think that is terriffic. Its the one I want to really perfect but it will be a while before I can manage as good as this one
alex

Hello xelasnave,

Thanks for your compliment. Yeah I am waiting to tackle the Horsehead Nebula again, too. Last time it was windy and I had to call it quits.

Paul

h0ughy (David) · #15 15-12-2005, 10:39 PM

yes the "grail" look wonderful with a holy handgrenade! A nice Nagller 31mm, so provide some more Scotty, don't let the cloud put you off! A photo montage from the M42 to the horsehead would be nice!!!