NGC7822 - A skull for Halloween .......

[swag72]

Totally unintentional, but it seems that I have imaged a skull in space  Very apt for this time of year so I am told!!

This is a 2 pane mosaic, on my wider field rig .... I've always had a fondness for this target and so have decided to return to it again. Whether I mosaic futher to get the question mark visual in, I'm not too sure. I am battling away at OIII and SII for this, but the weather has not been kind. 

I thought it may give you a smile for Halloween anyway

Details:
Mount: mesu 200
Scope: Takahashi FSQ85 0.73x
Camera: QSI683 with 3nm Ha filter

15x1800s Ha pane 1, 15x1800s in Ha pane 2 

Total exposure time 15 hours

You can see a larger version here

[ollypenrice]

Beautifully done, with your usual depth of data allowing for a really feisty processing job.

Olly

[johnrt]

It is very interesting that when objects are imaged and go deeper than is usually seen they take on a totally different appearance, I can see the skull there Sara clear as can be, our brains are really adept at recognising and assembling patterns that are familiar to us. Great imaging as usual.

[happy-kat]

I find it fascinating that something that looks fluid stays the same shape, or does it, how would the shapes compare to the same object taken a year ago.  There is a sense of 3-d it's not flat.

[swag72]

Thanks guys for your comments - As an addition to this, while I was processing I came upon a very small circular nebula... it has been identified as Abell 1... a little on the small size

 

[Nova2000]

Wow nice image swag72. Really looks like a skull. What's the name of this nebula? 

[PatrickGilliland]

Nice work Sara - the depth and detail are great as always and the little Abell 1 find shows how much attention you was paying to the data  

Paddy

[ChrisLX200]

Lovely mono image, lots of angry looking storm clouds in this one   I don't think most imagers go as wide as this field so Abell 1 will raraely be caught, certainly I missed it.

ChrisH

 

[graemlourens]

Sara, stunning, very stunning.

And this would 'ONLY' be a 9 pane mosaic for me! Maybe i'll give it a try  you tempted me....

Kind regards, Graem

[Barry-Wilson]

Refreshing to see this nebula in context rather than its central regions, which has been popular on the forums this year.

A great mono: smooth, yet with detail and contrast.  The hi-res version is sublime.

[swag72]

5 hours ago, Nova2000 said:

Wow nice image swag72. Really looks like a skull. What's the name of this nebula? 

It's NGC7822

Thanks for your comments Paddy, Chris, Graeme and Barry - This has taken a few framing examples to get right...... but it's there now! And perhaps I may do two panes downwards as well.....There's too much sky, too many scopes and not enough time  

[MartinFransson]

Very beautiful! How big is this nebula? I´m wondering how it would fit in the view of my 300mm lens and APS-C DSLR. But maybe it extremely faint? You make even the faintest nebula look so bright that even is DSLR-guys feel like giving it a try

[swag72]

Thanks Martin - I had a look on the FOV calculator and I can't find a 300mm lens, so not sure if it would fit..... Personally I don't think it would

[MartinFransson]

1 hour ago, swag72 said:

Thanks Martin - I had a look on the FOV calculator and I can't find a 300mm lens, so not sure if it would fit..... Personally I don't think it would

Maybe there is a refractor with similar FOV? A 75mm f/4 or a 60mm f/5 maybe?