DCld 343.0+2.8 – Dark Tower in the constellation Scorpius (the Scorpion)

The cometary globule DCld 343.0+2.8, known as "Dark Tower", in Scorpius is located in the southwestern part of the constellation. The head of the globule points towards the open cluster NGC 6231, which is outside of the image field. This star cluster is the center of the Scorpius OB1 association. Numerous young and hot stars of the association ionize the front part of the molecular cloud and produce the rim of red emission nebula. In addition to the emission region, five small blue reflection nebulae are visible around newly formed stars.

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Optics: Planewave CDK 12.5 with Televue 0.8x reducer
Aperture: 318 mm
Focal Length: 2030 mm
Camera: Canon EOS 700Dac
Exposure: 30 x 300 s
Location: Chamaeleon Observatory, Onjala Lodge, Namibia
Processing: Nebulosity, StarTools, Starnet++, Photoshop
Diameter:30 light years
Distance:5,300 light years
annotated image

image field in the sky