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Stormy Seas in Carina
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Name: NGC 3199
Description: Emission nebula, H II Region
Position (J2000): RA 10h 18m 6.38s Dec -57° 55' 29.26"
Constellation: Carina
Distance: 12,000 light years
Angular size: 20 x 15 arcminutes
Field of view: 53.05 x 38.15 arcminutes
Orientation: North is 89.9° right of vertical
Image Credit: ESO
Release date: July 30, 2018

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This ESO image shows a crescent-shaped cocoon of gas and dust - a nebula known as NGC 3199, which lies 12,000 light-years away from Earth. It appears to plow through the star-studded sky like a ship through stormy seas. This imagery is very appropriate due to NGC 3199's location in Carina - a southern constellation which is named after the keel of a ship!

NGC 3199 was discovered by British astronomer John Herschel in 1834 as he compiled his famous catalogue of interesting night sky objects. The nebula has been the subject of numerous observations since, including those by ESO's 8.2-meter Very Large Telescope (eso0310, eso1117), and 2.6-meter VLT Survey Telescope (VST). The latter made the observations that comprise this image. The nebula's bright crescent feature is now known to be part of a much larger but fainter bubble of gas and dust.

The nebula contains a notable star named HD 89358, which is an unusual type of extremely hot and massive star known as a Wolf-Rayet star. HD 89358 generates incredibly intense stellar winds and outflows that smash into and sweep up the surrounding material, contributing to NGC 3199's twisted and lopsided morphology.

The VST, which began operations in 2011, can image a large area of sky at once - an area twice the size of the full Moon - with its 256-megapixel camera, OmegaCAM. This allows it to characterize interesting objects which its larger neighbor, ESO's Very Large Telescope, can then explore in even greater detail.