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Reflection Nebula in Corona Australis, with NGC6723 and friends…

Posted by AstroTanja on 14 Apr 2014 / 5 Comments

Dark cosmic dust spreads across the Corona Australis constellation, with light from hot blue stars reflecting a blue glow. Top right of the image also contains NGC6723, a globular cluster in Sagittarius.  
Dark reflection nebula
There’s a lot happening in this image, I have to thank Cory for giving me this target idea to shoot as it was something he wanted to acquire.

It’s the 1st time using the Canon 5D Mark III on a telescope. (All CCDs and modded Cameras were busy at the time). I was curious to see what the superb sensor would do on the fast Orion 8” Astrograph – I imaged 12x 300sec @ ISO800 of this target. Due to the full frame sensor I was concerned about vignetting, but Cory’s method of shooting flats post-imaging worked well, and corrected the uneven illumination extremely effectively, some coma left in the left edge but tolerable.
(Read more about his post on shooting flats: http://astroshake.com/2014/02/howto-dslr-and-ccd-flat-frames-for-astrophotography/)
Shooting Flats
Image Acquisition:
Canon 5D Mark III
Baader MPCC MkIII
Orion 8”Astrograph F/3,9
1 Hour = 12 x 300 sec
25 Darks
100Bias
30 Flats
Acquisition: Nebulosity
Guiding: PHD2 & Orion SSAG
Post editing: PixInsight / Lighroom & Photoshop
Imaged in the dark skies of Sutherland, the Karoo – South Africa.

Want to know more about DSLR imaging or general astrophotography? Leave a comment…
Thanks for the support.
You can also check out my work on AstroBin and Flickr.

5 Comments for Reflection Nebula in Corona Australis, with NGC6723 and friends…


Ron Brecher ("Astrodoc")
8 yearss ago


Stunningly beautiful images. Thanks for sharing. Much if Sag is near my horizon in Ontario. But I have found other regions to shoot. Please have a look at http://www.astrodoc.ca!

Clear skies,
Ron

(Reply)

Shawn Nielsen
8 yearss ago


Some really fantastic images. I’ve followed you twitter feed over the last couple of years watching your images get better and better!

#ClearSkies,

Shawn (@Stardaug)

(Reply)

Auke
8 yearss ago


Beautiful image, thanks for sharing!

(Reply)

Luciano Scaramuzzi
7 yearss ago


Beautiful photo!!!

I have the mpcc mark2 and it is not flat field for a full frame!

Have you done other photo with mpcc and a full frame camera?

(Reply)

    AstroTanja
    7 yearss ago


    Unfortunately I haven’t shot any other DSOs full frame, just this one….

    (Reply)



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