Testing the Horsehead.

[A.S.I.G.N_Baz]

I took one 3 minute exposure at ISO800 of the horsehead. I have overprocessed this to the max to bring it out as much as I can. However, even with no darks, flats or offsets used here, I am happy that I captured it at all!

Cant wait for next friday night when I can stay up all night and do this again!..Properly.

Does anyone have any suggestions as to how many exposures I would need, for how long each exposure and at what ISO?

Otherwise, I will go for ISO 800, and probably on hours worth of 3 minute exposures.

Cheers,

Baz.
http://i17.tinypic.com/61kjec8.jpg

[seeker372011]

can you go 5 minutes at ISO 800?


I last shot this object at ISO 200 with 5 minute subs for an hour and it didn't turn out particularly well-the higher ISO should work better

[hpcoolahan]

hi Baz ,, basically the longer the subs , and heaps of them to get the signal to noise ratio up ,, the better.

Clear skies
Pat

[A.S.I.G.N_Baz]

Sweet! I'll give it a go soon!

Thanks.

Baz.

[BitsyLon]

Hiya Baz :)

I attempted the HH/Flame soon after receiving my XTi back from Hutech.

You can find a couple of versions via the link below:

http://s106.photobucket.com/albums/m273/bitsylon/

(Click on "My Astronomy Images" sub folder towards the top of the page).

Hutech 1a Canon XTi @prime on Orion ED80mm (F/7.5). 33x3min exposures @ISO1600.

You may be able to get away with fewer exposures with a larger scope - but, of course - the more you can capture the better!! As you know - this one is rather faint and needs a lot of photon capturing ;)

Good Luck,

Lon

[Radar]

(Click on "My Astronomy Images" sub folder towards the top of the page).


G'day Lon,

Nice observatory, did you build that? It looks quite large.

I can't find your Horsehead image. Can you point me in the right direction please?

Cheers

Ray

[BitsyLon]

And a G'Day to you too, Ray ;)

I had the observatory built to my "specifications". There are two rooms, both of which are 9.5 x 9.5 feet. The roof on the "observatory" side rolls off (the room on the right), and when I get the time and "money" the room on the left will be finished off as a control room. :)

As far as the web-sight - just above the images of the observatory, there is a white banner that has "My Sub Albums" ... within that also you'll see "My Astronomy Images" and "Nature" (sub albums). Click on "My Astronomy Images" ..... scroll down to see the HH/flame images - there are two - one of which is towards the middle of the page on the left, and the other one at the very bottom :)

Cheers,

Lon

[A.S.I.G.N_Baz]

And a G'Day to you too, Ray ;)

I had the observatory built to my "specifications". There are two rooms, both of which are 9.5 x 9.5 feet. The roof on the "observatory" side rolls off (the room on the right), and when I get the time and "money" the room on the left will be finished off as a control room. :)

As far as the web-sight - just above the images of the observatory, there is a white banner that has "My Sub Albums" ... within that also you'll see "My Astronomy Images" and "Nature" (sub albums). Click on "My Astronomy Images" ..... scroll down to see the HH/flame images - there are two - one of which is towards the middle of the page on the left, and the other one at the very bottom :)

Cheers,

Lon


HIJACKERS!!!!! :putz: :lmao:

[Radar]

HIJACKERS!!!!! :putz: :lmao:

lol, G'day Baz. Not sure how this happened. I did a multi quote on this and commented on your horsehead. Something went wrong somewhere :duh:

With the horsehead I can't really comment on DSLR's because I'm still a film guy. But I can tell you that this object is extremely faint and elusive. Shoot as long as you can, and keep stacking until you get what you need.

I guess keeping your CCD as cold as possible will help. Funny though, first time I shot the horsehead was with my LX-50 at F6.3 on film. My result looked very similar to your first result. I was holding my slide up to a 100watt light and I could see a really faint outline of the horsehead. I was stoked, showed all my mates, they thought I was losing it. :duh:

Ray