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Coalsack Loop in HSO, Brian Boyle
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Coalsack Loop in HSO

Getting plate-solving status, please wait...
Coalsack Loop in HSO, Brian Boyle
Powered byPixInsight

Coalsack Loop in HSO

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Description

Inspired by @Mathew Ludgate splendid image of this area, I set out to an HSO image of the Coalsack Loop - an emission shell of gas many degrees across powered by an OB association at tits centre.   I was actually surprised how colourful it turned out to be, with the shell not only showing up in Ha, but some [OIII] and [SII] inside helpfully making the ionisation "bubble" stand out all the more.  Indeed, I could have turned up the saturation a little more to better show the Halpha shell, but decided to go with this rendition, which is a little more subdued.  Now I really need to make a two panel mosaic of this to include the Southern Cross immediately to west.

30 x 600sec  in each of Ha, [OIII} and [SII]

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  • Coalsack Loop in HSO, Brian Boyle
    Original
  • Final
    Coalsack Loop in HSO, Brian Boyle
    B

B

Description: Post-processed from scratch. SHO rendition, asinh stretch, improved star reduction. and tighter crop. I think it is an improvement.

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Coalsack Loop in HSO, Brian Boyle