The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7) (Eric Coles (coles44))

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: 10 Gem · 11 Gem · 12 Gem · 7 eta Gem · 8 Gem · 9 Gem · Gem A · IC 443 · IC 444 · Sh2-248 · Sh2-249 · Tejat Prior · The star Propus (ηGem)

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The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7)

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The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7)

OK, I just could not resist. This is the APOD for 2017 January 7. It's a redo of my earlier post, cropped to highlight the nebula. Here is how they described the object.

Explanation: Normally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic mosaic. The scene is anchored below by bright star Eta Geminorum, at the foot of the celestial twin, while the Jellyfish Nebula is the brighter arcing ridge of emission with tentacles dangling below and left of center. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded. Light from the explosion first reached planet Earth over 30,000 years ago. Like its cousin in astrophysical waters the Crab Nebula supernova remnant, the Jellyfish Nebula is known to harbor a neutron star, the remnant of the collapsed stellar core. An emission nebula cataloged as Sharpless 249 fills the field at the upper right. The Jellyfish Nebula is about 5,000 light-years away. At that distance, this narrowband composite image presented in the Hubble Palette would be about 300 light-years across.

Narrowband imaging

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Status	Advanced success
Started	...
Astrometry.net job	3641957
PixInsight job	NLUL7Y8RZS1BMJY2OXLDS3M7YE39S20I
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h17m58s.68
RA (top/left)	06h21m33s.94
RA (top/right)	06h21m30s.68
RA (bottom/right)	06h14m19s.87
RA (bottom/left)	06h14m27s.85

Dec (center)	+22°58′39″.7
Dec (top/left)	+21°57′12″.6
Dec (top/right)	+24°00′15″.1
Dec (bottom/right)	+23°59′24″.6
Dec (bottom/left)	+21°56′08″.6

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The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7)

The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7)

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The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7)

The Jellyfish Nebula, IC 443, Hubble Palette (APOD 2017 January 7)

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