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

Technical card

Imaging telescope or lens: Canon EF 70-200mm f2.8 L

Imaging camera: Canon 5D Mark II

Mount: CELESTRON CG5-GT

Software: PixInsightO'Telescope BackyardEOS

Resolution: 5634x3753

Astrometry.net job: 229938

RA center: 191.391 degrees

DEC center: -62.489 degrees

Pixel scale: 9.658 arcsec/pixel

Orientation: 94.313 degrees

Field radius: 9.080 degrees

Description

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

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

Comments

Author

Cory Schmitz
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Southern Cross and the Coalsack Dark Nebula, Cory Schmitz

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