M20/M21 - Ngc6193

[vlazg (George)]

Hi All,

Latest images
M20 Triffid + M21 open cluster in Sagittarius
12x5min subs, 25 darks and flats-bias'

NGC 6193 open cluster in Ara + part NGC 6168, i want to use as the 1st part of my 1st attempt at a mosaic,
9x10min subs, same darks and flats as above.

Flt 110 + flattener, Atik 383 OSC, AZEQ6,SGPro, Nebulosity, CS6,
I recently down loaded CCDstack and Pixinsight but too complicated as yet to use.
Any comments on how to improve with processing would be highly appreciated.

Cheers

George

[Flugel88 (Michael)]

Hi George,

If your going to give CCD stack a go i would recommend watching Ken Crawford's Video's

https://www.youtube.com/watch?v=zSgO8kIWI5s

My attempts at using CCD stack before watching his video's were Futile.

I have never used Pixinsight everyone i talk to about it say its very complicated.I would not pay a small fortune for a program i would never get my head around . Its above my abilities.

Your 2 images seem to have lots of noise and some odd Vertical banding thing going on.
Seems odd given that your using an Atik 383 the same camera that i use except i use the mono version. Your other images i have seen don't seem to suffer from it. Maybe you just need more data.
What Temp did you run your chip at?

[vlazg (George)]

Hi Michael,
Thanks for the link, i will check it out.
sensor temp was -5, the noise and other artefacts are from reducing a 43mb file to 100kb i think, the full res images do not seem to show these.
Pixinsight seems to be a major $%%&$# but anything to keep an old mind active
George