Corona Australis

[xelasnave]

Thru the Askar 130 ..15 hours LRBG. 120 second subs. ZWO mount, OAG. over three nights..but I cleaned the sensor for RASA OSC camera and gathering ore data to see how it looks with a clean sensor and much more data.

No flats or bias..reason the camera played up half way thru and I had to replace it to continue..too much hassle to do different stacks with flats and bias.

This was to be my first real serious try but that was not to be.

alex

[oska]

Good stuff Alex the detail is nice and deep. Well done.

[glend]

Great gas tendrils in there Alex. Very nice work. :thumbsup:

[xelasnave]

Thank you John.
Thank you Glen.

Your encouragement is greatly appreciated:thumbsup:.

OK I had another go because it is overcast and I need to run the genny and charge the batteries;).

So to make the data go further I first stacked everything (LRBG) to make my luminance (mainly because I was not able to calibrate due to the camera change mid stream:D and to see how things went with this approach) and then added my luminance to each other channel...so red was all my subs from the L filter and all the subs from the red filter..and same approach for blue and green:eyepop:

So My L stack came out as 10 hours and 16 minutes, red was 5 hours 30 minutes, blue 6 hours 46 minutes and green 5 hours 8 minutes for a total of 27 hours 40 minutes:eyepop:...

Processed in Startools (no HDR) and as good as I could tell for colour.
A small adjustment in Photoshop (minimal) but mainly I go there to resize (no dodge and burn for this one..maybe minimal:D).

AND so I present my redo for your comments .. are the stars green? EDIT. Second conventional stack and inappropriate flats and darks time 8 hours 16 minutes

alex

[oska]

Much better colour Alex, yes the stars have greenish tinge

[AstroViking]

Excellent set of images, Alex.

[Bodon]

Nice pics there Alex! Great stuff mate.

[xelasnave]

Thank you Steve

and

Thank you Steve.

I am going to have even another go and see if I can get the colour better.
So I am using this object to learn stuff.

alex