Jewel Box and RCW 71

benklerk · #1 27-05-2023, 11:41 AM

NGC 4755 and RCW 71

Just a test to see how doing a HDR combination would turn out.
NGC 4755 also know as the jewel box with RCW 71 a small faint emission nebula behind the Coalsack in the constellation of Crux.

ZWO 1600mm
10micron mount
William Optics FLT 91

Total time About 15hrs.

gregbradley · #2 27-05-2023, 01:59 PM

That's a fabulous image Ben. Love the colour and brilliance of the stars.

Greg.

benklerk · #3 27-05-2023, 02:07 PM

Quote:

Originally Posted by gregbradley

That's a fabulous image Ben. Love the colour and brilliance of the stars.

Greg.

Thanks Greg.

PhilTas (Phil) · #4 27-05-2023, 06:59 PM

I'll second Greg,

this is an awesome image!!!

kosborn (Kevin) · #5 27-05-2023, 07:08 PM

Great image! I didn't realise there was an emission nebula there. Did you take Ha subs or was that just from the red filter?

benklerk · #6 27-05-2023, 08:35 PM

Quote:

Originally Posted by kosborn

Great image! I didn't realise there was an emission nebula there. Did you take Ha subs or was that just from the red filter?

Hi Kevin

I used about 4hrs of HA to help bring out the nebula. With just the red filter you do loose some of the details. I only noticed the nebula when I was doing calibration testing on the jewel box.

Ben