Corona Australis & Helix Neb

[Robh (Rob)]

Originally Posted by southseeker

I looked up NGC6723 on Starry Night but I don't have the double star. Is the dark shape NGC6727 about 30 arcmin at pa 120° from globular?

And the two outer stars epsilon (left) and gamma (right) CrA ?
cheers, george

George,

Easier to explain with this sketch. The boomerang shaped dark nebula is Bernes 157. NGC 6726/7 is a reflection nebula around the wider pair SAO 210828/9.

Regards, Rob

[tornado33]

many thanks all
NGC 6727 is the blue bright reflection nebula around the double stars. The bright white star above and just to the left of the globular is Epsilon, the star at extreme right is indeed Gamma.

Ive seen the nebula NGC 6727 visually in George Livanos's home built 18 inch scope when he had it at the old paintball IIS site. It was easy to see. Of course the dark brown bernes 157 is impossible to see any colour in and only betrays its presence by a lack of background stars.

Its a beautiful area of sky and is good to image with both with short and long FL setups
Scott