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m27 - work in progress...

Started by JohnP, Jul 04, 2008, 13:25:29

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JohnP

I actually took an image last night for about first time in 6 sessions - I have been fighting an ongoing guiding issue & last night it was starting to look a bit better (still not perfect but getting there - I hope....!)

Anyway - imaged m27 - Ha, rgb with Atik 16ic through MN56 - approx 15X5min subs Ha & then 10 each of 90secs subs RGB binned 2X2 (not very big images when you bin 16ic but seemed to upscale OK at processing stage)..

Ha jets starting to show (which isn't bad for 5min subs from my very light polluted location) - only wish I could guide accurately enough to do 10min subs...

I have an issue with the green alignment so I'll need to go back & redo at some stage...

Let me know what you think?

Cheers,  John


Fay

Well done, John, hope it's the light at the end of the tunnel. A lot of detail coming out there! Very nice

Fay
It is healthier to be mutton dressed as lamb, than mutton dressed as mutton!

Ian

definitely see some jets there. Good stuff.

The green looks a bit odd, at first it looked like a registration problem but not on all the stars.

If there a fingerprint on the filter maybe?

JohnP

Thks Ian - Yep - I thought it was a bit weird...it's like the green image has rotated somehow.. I'm almost thinking that maybe when I turned my filter wheel to select green filter the camera rotated slightly in focusser.... I'll take a closer look at it...

Thks,  John

RobertM

That's a great image John, that MN56 really is an excellent little scope.  It would be really interesting to see it with double the number of subs.

You do need to get those elongated stars nailed though ...

JohnP

Cheers Robert.. The guiding is getting better but like you say still room for improvement... It's tough doing anymore subs than I did with such short nights in a single session. I could always try revisiting - Maybe at DSC...

John

Mike

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

JohnP

Thks Mike

I've had ago at realigning colours in aip4win & think I have it sussed... green halo's are a lot better- I think stars look a little rounder as well.. Also, I left the colour balance as it came out... it's greener whereas the previous post was more blue. Not sure whih is correct..

John


Mike

Stars are a touch on the green side still but the registration is far better.
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. Carl Sagan

JohnP

Thks Mike - I need to check it out on my desktop which is currently being hogged by my son & his mate playing some on line game.. I'll check it later & adjust as necessary - thks

Ian

I've got wirecutters John, if that helps?

MarkS


There's some good detail coming out there John - remarkable for such a short total exposure.  But Mike's right,  your stars are too green.

JohnP

OK - final revision - I'm done with this....... John :-)



Rocket Pooch


JohnP

Cheers Chris - At least the guiding was sort of working so I'm happy (happier..) John