Witch Head Nebula (Darius Kopriva)

Celestial hemisphere: Southern · Constellation: Eridanus (Eri) · Contains: 63 Eri · 65 Eri) · 65 psi Eri · 69 Eri) · 69 lam Eri · HD31272 · HD31300 · HD31343 · HD31366 · HD31403 · HD31424 · HD31425 · HD31426 · HD31469 · HD31491 · HD31504 · HD31523 · HD31543 · HD31544 · HD31570 · HD31595 · HD31624 · HD31625 · HD31630 · HD31631 · HD31632 · HD31651 · HD31652 · HD31653 · HD31654 · And 101 more.

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Witch Head Nebula

Link: https://dako-astrophotography.com/Image/11pqry

Powered byPixInsight

Witch Head Nebula

Link: https://dako-astrophotography.com/Image/11pqry

IC 2118 (also known as Witch Head Nebula due to its shape) is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in the constellation of Orion. The nebula lies in the Eridanus Constellation, about 900 light-years from Earth. The nature of the dust particles, reflecting blue light better than red, is a factor in giving the Witch Head its blue color. Radio observations show substantial carbon monoxide emission throughout parts of IC 2118, an indicator of the presence of molecular clouds and star formation in the nebula. In fact candidates for pre-main sequence stars and some classic T-Tauri stars have been found deep within the nebula.

The molecular clouds of IC 2118 are probably juxtaposed to the outer boundaries of the vast Orion-Eridanus bubble, a giant supershell of molecular hydrogen blown by the high mass stars of the Orion OB1 association. As the supershell expands into the interstellar medium, favorable circumstances for star formation occur. IC 2118 is located in one such area. The wind blown appearance and cometary shape of the bright reflection nebula is highly suggestive of a strong association with the high mass luminous stars of Orion OB1. The fact that the heads of the cometary clouds of IC2118 point northeast towards the association is strong support of that relationship.

Southern Hemisphere Astro

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Advanced success
Started	...
Astrometry.net job	8370360
PixInsight job	ZZ86ES743MGP16YW92JERU5G7HR25NFQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h02m28s.66
RA (top/left)	05h11m00s.26
RA (top/right)	04h55m13s.20
RA (bottom/right)	04h53m51s.82
RA (bottom/left)	05h09m49s.15

Dec (center)	-08°02′56″.2
Dec (top/left)	-05°50′37″.1
Dec (top/right)	-05°34′48″.9
Dec (bottom/right)	-10°14′26″.5
Dec (bottom/left)	-10°30′31″.3

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Witch Head Nebula

Witch Head Nebula

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Witch Head Nebula

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