Carina Nebula just 25 x 2min subs QHY268c and Lextreme

Robert_T · #1 11-01-2021, 07:50 PM

After nearly 3 weeks of solid cloud a break last night finally to get some new light with my QHY268c (equiv to ASI2600MC) camera and L extreme.

Was having some guiding issues and ended up chucking more that half the frames so ended up with just 25 x 2min subs.

Thought I'd do a quick stack in DSS and process in Startools and final tweak in PS. Wasn't expecting much from 50min but frankly I've already amazed at the level of detail possible with the this camera and esp the Lextreme filter on this object - it's only 30deg above horizon and smack bang in my Bortle 7 Brisbane skyglow dome.

With the QHY here as there's not a lot of bright stars that would saturate I chose High Gain mode and gain at 60 which brings read noise down.

With any luck I'll get some more data on this this week.

comments and advice welcome.

Robert_T · #2 13-01-2021, 04:09 PM

and processing this time in APP and PS

Craig_ · #3 13-01-2021, 07:30 PM

Nice amount of detail captured considering you only used 50m worth of subs!

Zuts · #4 13-01-2021, 09:58 PM

Quote:

Originally Posted by Craig_

Nice amount of detail captured considering you only used 50m worth of subs!

I agree, that's amazing details for only 50 minutes.

Robert_T · #5 19-01-2021, 08:01 AM

thanks Craig and Zuts. Note whole the original image posted is 50m the second was 2hr 20 so quite a bit more :-)

Baobab (Bohdan) · #6 19-01-2021, 11:41 AM

Awesome, I presume it is Askar, right? Once I graduate from childish mistakes I am thinking about something like that next.

Robert_T · #7 19-01-2021, 01:05 PM

Quote:

Originally Posted by Baobab

Awesome, I presume it is Askar, right? Once I graduate from childish mistakes I am thinking about something like that next.

Thanks Bohdan, actually this was the espirit 100ed so 550mm focal length as opposed to the 400 of the Askar.

Baobab (Bohdan) · #8 19-01-2021, 02:53 PM

Oh really? - for some reason I wouldn't expect Carina to fit into Espirit - I stand corrected

Robert_T · #9 19-01-2021, 05:30 PM

Quote:

Originally Posted by Baobab

Oh really? - for some reason I wouldn't expect Carina to fit into Espirit - I stand corrected

depends which one of course... :-) no problem with the espirit 80ed... a little tight with my 100, the 120 or 150 would only show a portion

AdamJL · #10 23-01-2021, 09:50 AM

why is this in the beginners forum?! This is incredible!! An absolute beauty. Perfect luminosity across the frame. This is a wall-hanger