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Hemisphere:  Southern  ·  Contains:  Mimosa (βCru), NGC 4349, Part of the constellation Musca (Mus), The constellation Crux (Cru), The star Becrux, The star Gacrux (γCru), The star α1Cru, The star α2Cru, The star αMus, The star βMus, The star δCru, The star εCru, The star ζCru, The star μ1Cru
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Southern Cross and the Coalsack Dark Nebula, 


            Cory Schmitz
Southern Cross and the Coalsack Dark Nebula
Powered byPixInsight

Technical card

Imaging telescopes or lenses: Canon EF 70-200mm f2.8 L

Imaging cameras: Canon 5D Mark II


Software: PixInsight  ·  Binary Rivers Backyard EOS

Basic astrometry details job: 229938

RA center: 12h 45' 33"

DEC center: -62° 29' 20"

Pixel scale: 9.658 arcsec/pixel

Orientation: 94.313 degrees

Field radius: 9.080 degrees

Resolution: 5634x3753


The Coalsack dark nebula in Crux is an apparently massive and dense complex of dust and gas visible only in the Southern Hemisphere. It's a mind-blowing sight to see in dark skies, and appears as a gaping hole in the Milky Way, bordered closely by the beautiful constellation of Crux, or the Southern Cross.

Captured on a recent astrophotography trip 2014-03-30 in the Karoo Desert of South Africa, near the small town of Sutherland.

Image details:
14x5min ISO800
Canon 5D Mark II, unmodified
Canon 70-200mm f/2.8 lens (at f/3.2 135mm)
Celestron CG5-ASGT, unguided
Calibrated with dark, flat, and bias frames

Data acquired with BackyardEOS
Calibrated, aligned, and integrated with PIxInsight
Post-processed with PixInsight and Lightroom



Cory Schmitz
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


Southern Cross and the Coalsack Dark Nebula, 


            Cory Schmitz