NGC 6946 & NGC 6939 - DSLR

[Betelgeuze]

Fellow astronomers,

because of the positive feedback I got on my NGC 7331 & Stephen's Quintet (which I am very pleased of), I want to share my NGC 6946 (Fireworks Galaxy) & NGC 6939 (Open Starcluster).

I'm new to this forum, almost either to astronomy so I hope to learn a lot new here.

Exposure:

49x270sec

Flats, Darks

Equipment:

8" f/4 Newton

EQ-6 Skyscan

Lacerta MGEN2

EOS 550D - no modification

processed with PixInsight

CS,

Simon

final_cc_NGC 6946 von Betelgeuse93 auf Flickr

[Gina]

That's excellent Simon - lovely image Well done

[bazlan]

Very nice mate

[Chris]

This is seriously good stuff you're posting, good to have you aboard SGL:) Which make of f/4 Newt are you using? I recken one of these will be my next step up from the 150p once I'm in my Obsy, I here they take a fair amount of tweaking to keep collimated though?

Chris

[Betelgeuze]

Originally my Newton was an Altair Optics Imaging Newtonian. I had a lot of problems with collimation so I built in a Orion UK primary mirror cell and in addition to that a new secondary mirror (Orion UK 74mm) for better field illumination. If I bought a new Newton, i would not go for cheap makes again. Bad workmanship can be a pain in the ass.

Thanks for your nice response though

[Betelgeuze]

As you can see on this picture, I had distorted stars because of primary mirror pinching...

Originally my Newton was an Altair Optics Imaging Newtonian. I had a lot of problems with collimation so I built in a Orion UK primary mirror cell and in addition to that a new secondary mirror (Orion UK 74mm) for better field illumination. If I bought a new Newton, i would not go for cheap makes again. Bad workmanship can be a pain in the ass.

Thanks for your nice response though

[Kbramley]

I like this a lot, superb framing and good colours, inspiring stuff.

Keith

[lukebl]

That's seriously good.

It's images like that which make me want to give up my feeble attempts at CCD imaging and return to DSLRs.

[MRAPO]

lovely you can see he,s getting better as his pics get older.

[mgirdwood]

Very nice, I wouldn't care about " pinched" stars if I could capture something like this

[Chris]

Originally my Newton was an Altair Optics Imaging Newtonian. I had a lot of problems with collimation so I built in a Orion UK primary mirror cell and in addition to that a new secondary mirror (Orion UK 74mm) for better field illumination. If I bought a new Newton, i would not go for cheap makes again. Bad workmanship can be a pain in the ass.

Thanks for your nice response though

I think Altair would sell a lot more of these f/4 Newts if they simply replaced the flimsy springs with stronger ones, I here quite often that poeple have bought cheap SW or Altair f/4's and just moving the scope around knocks out collimation. I would be willing to pay the extra fiver it would cost for better mirror cell springs, Altair and SW if your listening I pretty much know that if I got one I would have to tinker with it, they arn't half cheap though and I'm a cheap kind of guy:D

[Tinker1947]

Really nice image, well done....look forward to many more....

[Tom OD]

Beautiful pic, well framed, and nice colours.

Tom.

[SJJ]

Really great image.