Celestial hemisphere:  Southern  ·  Constellation: Puppis (Pup)  ·  Contains:  NGC 2467  ·  Sh2-311
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NGC 2467 - 2021, Gary Imm
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NGC 2467 - 2021

Getting plate-solving status, please wait...
NGC 2467 - 2021, Gary Imm
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NGC 2467 - 2021

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Description

This object is an emission nebula located in the southern constellation of Puppis at a declination of -26 degrees. The nebula consists of huge clouds of gas and dust sprinkled with bright stars and star clusters. It is unusual in that it consists of several superimposed nebula of different distances, which has led to large discrepancies in the reported distance of this object. The nebula is also known as Sh2-311 and Gum 9.

Haffner 19 is the open star cluster surrounded by a distinct orange circular region, bordered in red hydrogen gas, located just above the center of the image. That orange region is a good example of a Strömgren sphere of ionized hydrogen gas, the most famous example of which is the Rosette Nebula.

Haffner 18 is the larger cluster of about 50 stars at the center of the image. Just right of center, a young star can be seen still surrounded by its small circular birth cocoon of orange gas. This also looks like a Strömgren sphere to me, although I could not confirm this. Throughout the nebula are dark lanes of dust which are believed to be feeding the process of forming new stars.

This object is sometimes called the Skull and Crossbones Nebula. That nickname is good enough for this object to be 11th in my list of [url= https://www.astrobin.com/396279/?nc=user] All-time Worst DSO Nicknames [/url]. I just discovered that this object is also called the Mandrill Nebula, after the monkey of the same name. If I had known this when I compiled the Worst DSO Nickname list, the combination of the 2 bad nicknames may have been enough to push this nebula to first place on the list.

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NGC 2467 - 2021, Gary Imm