Ara shoreline close up in Ha

[multiweb (Marc)]

Hi guys, very productive night last Thursday.

This is the core of NGC6188. That’s 44 x 300s in Ha so a bit over 3.5h in total. The longest integration time I did with the hyperstar on any DSO and it shows in the details. Top left corner of the shot shows some field rotation that I documented here. This will not happen again

Very happy with the data on this one. There's a better resolution here [610KB] and a full 1:1 here [2.78MB] if you want to have a look at it full screen.

Thanks for looking.

[TrevorW]

Well Marc now I'm certain I'll have to figure out Ha imaging

[DavidU (Dave)]

Awesome contrast and detail Marc !!!!
That new rig is coming up a treat

[Hagar (Doug)]

Very nice clear image Marc. The detail is great. Where are you guys getting the clear sky from?

[multiweb (Marc)]

Originally Posted by TrevorW

Well Marc now I'm certain I'll have to figure out Ha imaging

Of course Trev, you'll figure it out. Just takes time and practice. Shoot me a PM when/if you get stuck.

Originally Posted by DavidU

Awesome contrast and detail Marc !!!!
That new rig is coming up a treat

Thanks David. Yes it's all coming together now. Some remaining field issues to deal with then I'm there. It's been a long road. So many different moving bits to align and fiddle with between the SCT and the hyperstar but I always knew the potential was there and it's now starting to slowly show.

Originally Posted by Hagar

Very nice clear image Marc. The detail is great. Where are you guys getting the clear sky from?

Thanks Doug. Glad you liked the shot. Thursday night wasn't bad at all in Sydney West. Bit dewy from 1:00am onwards but the jetstream map wasn't too bad and ground wind was nill so I took advantage of it.

The plan was to image Thursday then recover Friday night so I could image again from Crago tonight but I got stuck on the M5 all arvo coming back from the airport. Spewing!

[Bassnut (Fred)]

Holy cow Marc, thats amazing, youd be happy indeed, your best yet by far.

In fact id say youve entered a whole new level here, the detail is extrardinary.

Damb it, you know, ill stick my neck out and say this would be one of the best views ive seen of this area.

Youd be nuts not to enter this in the Marlins, perhaps as a colour pic.

[multiweb (Marc)]

Thanks for the high praise Fred. Happy with that one? Yes definitely but for the top left. Once I have the final field sorted out I'll be right. Everything else is A OK now. Receiving a SCT laser collimation kit soon from Hotech. So I'll start playing with that and see what's going on with the "thermal" flop overtime.

[renormalised (Carl)]

Fantastic shot, Marc...the detail in that is exquisite

Definitely a Malin's

[gregbradley]

That's a wonderful shot Marc. Perhaps one of your best.

Greg.

[multiweb (Marc)]

Originally Posted by renormalised

Fantastic shot, Marc...the detail in that is exquisite

Thanks a lot Carl. Glad you liked it.

Originally Posted by gregbradley

That's a wonderful shot Marc. Perhaps one of your best.

Greg.

Thanks Greg. Yeah I'm pretty happy with it. Flat fielding working with the hyperstar just opened another door for me. I can really push the contrast in the data set now. Exciting times ahead

[David Fitz-Henr]

That is a sublimely beautiful image Marc!! Great detail and smooth as silk! You appear to have resolved your problem with the field tilt then? At f/1.8 focusing must be a real challenge!

[bluescope]

Very nice image Marc ... lots of subtle detail revealed !

[multiweb (Marc)]

Originally Posted by David Fitz-Henr

That is a sublimely beautiful image Marc!! Great detail and smooth as silk! You appear to have resolved your problem with the field tilt then? At f/1.8 focusing must be a real challenge!

Thanks David. Believe it or not it was only one hour before I moved to the swan area. By then the scope was in temperature and I didn't change anything at all. By the time I slew to M17 (mostly in dec) so no major balance shift here, everything started to go out of wack. Focusing is not too hard to do. I know it's supposed to be a very tight CFZ at F/1.8 but in practice I never had any hard time focusing. The bathinov does a fine job so does the primary mirror lock.

Originally Posted by bluescope

Very nice image Marc ... lots of subtle detail revealed !

Thanks Steve.

[mill (Martin)]

Beautiful image Marc
With this kind of data you could use a bit more sharpening without introducing noise.

[multiweb (Marc)]

Originally Posted by mill

Beautiful image Marc
With this kind of data you could use a bit more sharpening without introducing noise.

Thanks Martin. You're right I could have but didn't this time. I usually always do. I didn't do any sharpening or even noise reduction. I had none to start with. I thought it looked smooth enough or maybe I was a bit mellow after two beers

[batema (Mark)]

I agree with all the comments made so far. It looks amazing. I absolutely love Ha shots.

Mark

[multiweb (Marc)]

Originally Posted by batema

I agree with all the comments made so far. It looks amazing. I absolutely love Ha shots.

Mark

Thanks Mark. Ha rocks in light polluted environments.

[richardo (Rich)]

That is a lovely image Marc!
I don't know, I seem to always love B&W Ha images, something about them to my eye.

Lots of nice detail amongst this and well processed.
Looks as thought the Hyperstar is a real winner

All the best
Rich

[danielsun]

Wow Marc! That is absolutely stunning!! Really loving your Ha work.

Cheers Daniel.

[strongmanmike (Michael)]

That's Hypergood Marc

The bit of wonky starness is not that bad, I don't care that it's there at all still a fine shot mate!

Mike