NGC2239 up close in Ha

[peter_4059]

I finally felt like I made some progress last night with the Ha filter. Managed to get 2 hrs on NGC2239 before the clouds rolled in again. Guiding etc behaved pretty well and I'm much happier with the stars in this image compared to previous attempts.

12x10min subs using the QHY8pro and 10" newt.

Comments welcome!

[renormalised]

Good shot....stars are nice and tight:)

Plenty of detail.

[strongmanmike]

Looks excellent Peter :thumbsup:

The image size posted is a bit small though to really appreciate the fine details.

Mike

[peter_4059]

Thanks Carl and Mike. Not sure what to do about the image scale as this is already at the 200k limit?

[allan gould]

A real beauty Peter. Looks sharp and a wealth of details captured there - its amazing what you are gtting out of the QHY8 with Ha filter. Well done.

[ozstronomer]

Lovely shot Peter great detail, looks like you have sorted out the dew problems

[troypiggo]

Mate that's an absolute rip-snorter! Gotta be happy with that!

[peter_4059]

Thanks Allan. It is starting to come together finally. I was looking back at what I was getting in the early DSI images a couple of years ago - it's funny how your standards get higher.



Thanks Goeff. I haven't quite got the dew under control but hope to pretty soon. I've found some small argon cylinders and will pick one up tomorrow. I've also ordered some dessicant strips from Theo. If that combination of measures doesn't solve the problem nothing will.



Thanks Troy - I really like this neb - shame I don't have a wider FOV.

[RobF]

Great going Peter! Nice tracking, and you haven't over stretched it - the stars have still got some softness and roundness to them. I'd love to know where you've sourced the argon and what it costs?

[peter_4059]

Cheers Rob. PM'd you the details.

[peter_4059]

Been playing around with this tonight after seeing Rob's image of the same neb. Here's a repro with more curves applied to lighten thing up a bit.

[h0ughy]

looks like you are having a lot of fun with this one - its a ripper of a shot. I would have thought your field of view would have been a little larger though?

[marki]

Looks good Peter, nice round stars and well focused. Can't ask for more then that.

Mark

[peter_4059]

Thanks for the feedback Dave and Mark. That's the whole FOV Dave with the 10" newt/paracorr/QHY8. The paracorr adds 15% to the focal length, making it 1460mm. I get 56'x37' FOV and 1.1 arc sec/pixel (in colour).

[desler]

Got to be very happy with that Peter! Heaps of detail, I like it.


Darren

[multiweb]

Super shot. Real nice Ha! :thumbsup::thumbsup::thumbsup:

[peter_4059]

Thanks Darren and Marc. Back to colour last night - having to re-learn colour processing now!