View Full Version here: : Eagle Nebula in Ha under moonlight
tornado33
05-09-2006, 10:50 PM
Howdy
I havent shot the Eagle Neb in Ha with the 10 inch scope as yet so tried it tonight, and as nights are warmer tried shorter high ISO shots as longer ISO 400 shots of the Helix proved dissapointing.
I was pleasantly surprised with the result
7x5 mins ISO 1600, 7 Nm Ha filter, 10 inch F5.6.
I nearly didnt get the image done as I had trouble finding the object, due to the sky being so bright with moonlight, I had to virtually "star hop" to it and could in the end only see it in the finder with averted vision, centering it in the scope by taking 10 sec test shots, then moving the scope and so on.
To help recuce dark current noise I took 4 darks instead of the usual one, and did so immediately after the light images with camera at similar temperature.
Severe buffeting happened during some of the images, the 7 Nm filter apparently blocking so much starlight the "wiggles" didnt show up :)
Im very surprised to get what I got, narrowband imaging of emission line nebulae rocks when theres a moon about :)
As usual, processed in Iris and Photoshop, resized for viewing here.
Scott
It's one of the most amazing images of the Eagle Neb in Ha I've seen I'd say.
Excellent image indeed Scott.
Thank you for giving us our fix while the moon is up too.
glenc
06-09-2006, 03:20 AM
A very impressive image. :thumbsup: :whistle:
gbeal
06-09-2006, 06:32 AM
Very nice Scott, mine are taking some time to get going. Great to have some imaging while the moon is present though.
I used the Argo Navis to get me on the spot, I know what you mean by difficulty in locating the object though.
Dennis
06-09-2006, 07:35 AM
Very nice Scott, very nice indeed.
Cheers
Dennis
Great image Scott,
These Ha filters are certainly impressive in what they can do and they really give images a real sense of depth.
I'll bet there not cheap either.
great imaging
h0ughy
06-09-2006, 07:53 AM
Another Ordinary effort Scott! Well maybe not, ordinary, perhaps extraordinary
Striker
06-09-2006, 07:54 AM
I like it a lot.
Nice work Scott.
It's still upside down....lol
iceman
06-09-2006, 07:54 AM
Don't make me turn my head upside down!! Flip the image! :)
It's beautiful Scott, apart from the orientation ;)
Garyh
06-09-2006, 08:09 AM
Looks great Scott, love to see this incorporated in a RGB shot!
Would be atunning!!
Cs Gary
PhotonCollector
06-09-2006, 08:58 AM
Stunning! I love it.
tornado33
06-09-2006, 01:54 PM
Thanks all :)
Yes the poor Eagle is flying upside down lol.
http://www.aoe.com.au/filters.html has the Baader Ha filter for $199 but is 45nm, dont know why they dont list the 7 Nm one
Arrr the cloud is moving in, no imaging for some days now I fear.
Scott
Brilliant image - easily the sharpest I've seen.....
EzyStyles
06-09-2006, 11:34 PM
stunning eagle scott. plenty of details above the eagle.
avandonk
07-09-2006, 06:02 AM
Just shows with superb optics and high signal to noise due to the Halpha filter what can be done. Seems to me that Scott can image even with the Moon present with that 7nm Halpha filter.
I must get me one!
Another great Halpha image from Scott.
Bert
tornado33
07-09-2006, 03:08 PM
Thanks all :)
From now on I will do most of my HA imaging with the 10 inch scope using ISO 1600 and 5 min individual exposures as was done here. However for Ha imaging with Bert's great Flourite 300mm f2.8 lens, ISO 400 and 5 to 10 min shots is good.
Scott
EzyStyles
07-09-2006, 03:15 PM
Bert, you wouldnt happen to have a "spare" flourite 300mm f2.8 lens? :D
avandonk
07-09-2006, 03:28 PM
I do as a matter of fact, but Scott has possession at the moment. You will have to negotiate with him. Even a crow bar will not help. I know I have tried. He keeps mumbling 'sorry too busy guiding'.
Just joking.:D
Bert
EzyStyles
07-09-2006, 03:43 PM
:rofl: :lol: :rofl: :lol: you won't get it back thats for sure :whistle: j/k just alittle tease scott :D
tornado33
07-09-2006, 03:52 PM
Hehehehe Its a lovely chunk of glass to be sure :)
I cant wait to do Orions belt with it both in visible and Ha light.
Ive uploaded a larger version of the Eagle neb here
http://www.users.on.net/~josiah/mod350d/eagle%20ha7x5minsiso1600%20stretche d.jpg
Scott
EzyStyles
07-09-2006, 03:56 PM
wonder how it will turn out shooting M16 with O-III and HA filter? colours willl be very close to hubbles. I'm waiting for that day to see it scott ;)
avandonk
07-09-2006, 03:56 PM
The reality is that I said to Scott he has total control for a whole year, so even I cannot change this. You are still young Ezy, just wait a bit.
Meanwhile PM me if you want to borrow any lenses for your new 350D.
Bert
EzyStyles
07-09-2006, 04:05 PM
cheers bert. thanks for your kindnesss. was just teasing as always :D im having a ball with my standard 18-55mm lense. until i really get sick of it :)
just found a shot of M16 with HA and O-III .
avandonk
07-09-2006, 04:28 PM
Here is one of mine. It is H alpha saturated. It was taken through a Hutech nebula filter.
Bert
tornado33
07-09-2006, 06:28 PM
Yes I will try for an O3 version when the weather clears :)
Scott
glenc
07-09-2006, 07:26 PM
Bert
Its a great image of M16.
I have seen that red dot on the left of M16 with my 10" and a UHC filter.
Its part of NGC 6604.
Glen
tornado33
07-09-2006, 10:36 PM
Yes thats a nice looking nebula that, a very deep image to get it :)
Scott
venus
08-09-2006, 07:45 AM
I keep reading all your fabulous posts about imageing techiques and it's all way over my head. The pics are really amazing though:) Great work Scott
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