M27-12.3 hours

[Dietmar]

hi guys,
recently I showed you my prelim. result on M27.
now I have some O3 in addtion to OSC and Ha.
what started last year in july, ended now...
when I still had my one shot color CCD (M25C) I collected some 3.8
hours of data in a night of not very good seeing last year..
in june and july 08 I acquired H-alpha and O3.
more than 12 hours total exposure time...phew - I think this gonna
become normal...
I think the image is deep in both, Ha and O3 now, and it is another
combination of different CCDs.
one shot and mono.
as for the sensitivity of CCD:
boy - that was a tremendous difference!
2.5 hours of O3 (2x2) showed much more data than 6 hours of Ha (2x2).
the SX H16 is very sensitive to green obviously, but way less
sensitive to red...unfortunately.
NP - it's just a matter of exp-time...*g*.
on the other hand - the 4021 chip is nice to handle, as it is qute
"calm"...
o.k. - end of speach - here we are with more than 12 hours tot. exp-time:
http://www.stargazer-observatory.com/M27-9.html
thanks for looking.
best regards,
Dietmar

[Starkler (Geoff)]

I always enjoy your images Dietmar. Thanks for sharing once again

[leon]

I have to agree, certainly a beauty, nice work.

Leon

[Matty P (Matt)]

Absolutely stunning Dietmar.

Very well done.

[Outbackmanyep]

Holy crap! Thats AWESOME!!!!!

Love it!

[Ric]

A real beauty Dietz.

Fine work.

[Dietmar]

thanks a lot people!
I am now reconsidering adding some more lum and 1x1 binned o3 and ha.

[jase (Jason)]

Most excellent work Dietz. I found it interesting the you were able to maintain the OIII traces in the ejecta. I had them in the OIII data I acquired, but after colour weightings it was gone. Even on the NB palette it wasn't so pronounced. Well done.

[strongmanmike (Michael)]

Hey Diets, sorry I missed commenting on this one Lovely job! Very impressive image, the mouse over is neat too.

Once you have done long exposures it is hard to go back huh? The 20hrs I did on Centaurus A from dark skies was such a pleasure to process. Clear dark skies (unless you are doing just NB) and lots of data (Mega data as Fred V puts it) is deffinitely desirable.

Mike