Sharpless 2-311 Skull and Crossbones in narrowband (David Elmore)

Celestial hemisphere: Southern · Constellation: Puppis (Pup) · Contains: 7 Pup) · Asmidiske (ξ Pup · NGC 2467 · NGC 2482 · The star 188 Pup · The star Azmidi · The star ο Pup

Sharpless 2-311 Skull and Crossbones in narrowband, David Elmore

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Sharpless 2-311 Skull and Crossbones in narrowband

Revision title: - revised color table

Powered byPixInsight

Sharpless 2-311 Skull and Crossbones in narrowband

Revision title: - revised color table

Sharpless 2-311 about 17000 ly distant in Puppis. Narrowband with H-alpha as red, Sulphur II as yellow, and Oxygen III as teal.

This is my first exercise in processing narrowband in PixInsight. There is a lot to learn.

A consequence of the processing is the revealing of an object that I cannot find documented. It is the shell left of Sh2-311 that looks much like a slightly hidden Bubble Nebula.
Research by Dana Patchick has turned up a bright O6 star that could likely be the source of an intense stellar wind causing the shell.
Renaud Coppe has also seen this object in his imaging of this region.

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Title: - revised color table

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Astrometry.net job	6865234
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Sharpless 2-311 Skull and Crossbones in narrowband

Revision title: - revised color table

Sharpless 2-311 Skull and Crossbones in narrowband

Revision title: - revised color table

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Sharpless 2-311 Skull and Crossbones in narrowband

Revision title: - revised color table

Sharpless 2-311 Skull and Crossbones in narrowband

Revision title: - revised color table

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