NGC6164/65 - Ejection Nebula in Norma

[EddieT (Eddie)]

Wow! One object? Hmm. It would have to be something spectacular that noone has imaged yet

There are many. There is a huge shell around M57 that usually is not visible at all in images of the ring, but some adventurous souls have managed to image it in great detail by using exposures ten+ times longer than needed to image the Ring nebula itself with great clarity. I'd like to see if a similar shell exists around the Eight-Burst planetary in Vela. If it does, I haven't seen it.

Then again, there are many awesome patches in Vela, associated with the SNR that deserve special attention.

Ok, sorry, but I can't answer your question

[[1ponders] (Paul)]

Gotcha thinkin' though An object for next years award maybe

[cometcatcher (Kevin)]

Fantastic image for a 6 inch scope Eddie.

Is that over 5.5 hours total combined exposure? I think that's about how long our skies stay clear for all year lol.

[ErwinvdVelden]

Great shot Eddie!

You used quite a bit of noise reduction on that one, no wonder with that kind of focal ratio... Ever considered getting one of Jim Riffle's creations like the Centurion 18 inch f/2.8? ;-)

See you at Astrofest.

Cheers,

Erwin

[EddieT (Eddie)]

Thanks Kevin,

Is that over 5.5 hours total combined exposure? I think that's about how long our skies stay clear for all year lol.

That's a short one for me !

[EddieT (Eddie)]

Thanks Erwin,

You used quite a bit of noise reduction on that one, no wonder with that kind of focal ratio...

Not at all. The only noise reduction was in the Sigma combination of the raw images. Even the sum of the dark-subtracted raws looked very smooth except for cosmic ray hits. Probably due to the fact that it was a very cold night. The camera was operating at -24C which I can rarely get it down to.

Ever considered getting one of Jim Riffle's creations like the Centurion 18 inch f/2.8? ;-)

I have considered it but as usual it all comes down to money

[ErwinvdVelden]

Hi Eddy,

In that case it looks like a very smooth object indeed and a very low noise level.

Cheers,

[EddieT (Eddie)]

Erwin,

In that case it looks like a very smooth object indeed and a very low noise level.

Yes I was amazed myself. In three years this is the first time I have gotten the camera below -20 and the difference was impressive! Even the 10 minute dark frames looked smooth!

[tornado33]

Hi Eddie, is your camea air cooled? I guess you could consider liquid cooling to get the cold temps on warm nights.
Scott

[EddieT (Eddie)]

Hi Scott,
Yes it's air-cooled. It is water-cooling ready, just needs a pump, hoses and a bucket. I have bad memories of water-cooling from the cookbook days. It was a messy business But still, I did reconsider it last summer. Reports are that it will give an extra 6 degrees C of cooling. Which doesn't sound like much, but is significant in terms of thermal noise reduction.