SH2-308 Cosmic Bubble in HOO (Andy Harrell)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 omi01 CMa · Sh2-303 · Sh2-308 · The star ο1CMa

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SH2-308 Cosmic Bubble in HOO

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SH2-308 Cosmic Bubble in HOO

This is an image I worked on for a while this winter. SH2-308 never rises above 40 degrees in the sky from our location in Florida. But it is such a cool looking object I couldn't resist trying to capture it. I ended up with just over 32 hours of data in Ha and OIII. I combined the filters into a HOO image. (Hydrogen, Oxygen, Oxygen in place of Red, Green and Blue). The object itself is a bubble created as a massive (20+ solar masses) Wolf-Rayet star blows off material. The star has a 3.8 million mph stellar wind that has blown the material outwards so that the bubble is 60 light years in diameter. This phase is relatively brief in the life of a massive star as they are generally thought to explode after a brief period of blowing these sorts of bubbles. The bubble itself will eventually be wiped out by the supernova.

/r/astrophotography
Cloudy Nights
Narrowband imaging
Takahashi Refractors
QHY Users Group
Imaged with Voyager

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Status	Advanced success
Started	...
Astrometry.net job	4251581
PixInsight job	V3IAWO2ZIB46798TIESOS7T21IKG9Y44
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h54m28s.40
RA (top/left)	06h51m10s.10
RA (top/right)	06h51m40s.60
RA (bottom/right)	06h57m50s.64
RA (bottom/left)	06h57m11s.30

Dec (center)	-23°50′07″.2
Dec (top/left)	-22°26′42″.10
Dec (top/right)	-25°17′23″.7
Dec (bottom/right)	-25°13′23″.9
Dec (bottom/left)	-22°22′53″.5

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SH2-308 Cosmic Bubble in HOO

SH2-308 Cosmic Bubble in HOO

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SH2-308 Cosmic Bubble in HOO

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