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- IC_2118 abstract "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 Orion. It 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.".
- IC_2118 thumbnail Reflection.nebula.arp.750pix.jpg?width=300.
- IC_2118 wikiPageExternalLink ap091229.html.
- IC_2118 wikiPageExternalLink witch-head-nebula-ic-2118.
- IC_2118 wikiPageExternalLink ngcic.cgi?IC2118.
- IC_2118 wikiPageID "1120837".
- IC_2118 wikiPageLength "3005".
- IC_2118 wikiPageOutDegree "17".
- IC_2118 wikiPageRevisionID "706428869".
- IC_2118 wikiPageWikiLink Astronomy_Picture_of_the_Day.
- IC_2118 wikiPageWikiLink Category:Emission_nebulae.
- IC_2118 wikiPageWikiLink Category:IC_objects.
- IC_2118 wikiPageWikiLink Category:Orion_(constellation).
- IC_2118 wikiPageWikiLink Degree_(angle).
- IC_2118 wikiPageWikiLink Earth.
- IC_2118 wikiPageWikiLink Epoch_(astronomy).
- IC_2118 wikiPageWikiLink Eridanus_(constellation).
- IC_2118 wikiPageWikiLink Light-year.
- IC_2118 wikiPageWikiLink Nebulae_in_fiction.
- IC_2118 wikiPageWikiLink Orion_(constellation).
- IC_2118 wikiPageWikiLink Orion–Eridanus_Superbubble.
- IC_2118 wikiPageWikiLink Reflection_nebula.
- IC_2118 wikiPageWikiLink Rigel.
- IC_2118 wikiPageWikiLink Supergiant.
- IC_2118 wikiPageWikiLink T_Tauri_star.
- IC_2118 wikiPageWikiLinkText "IC 2118".
- IC_2118 appmagV "13".
- IC_2118 caption "IC 2118".
- IC_2118 constellation Eridanus_(constellation).
- IC_2118 distLy "1000".
- IC_2118 epoch Epoch_(astronomy).
- IC_2118 name "IC 2118".
- IC_2118 names "Witch Head Nebula, Cederblad 41".
- IC_2118 sizeV "3".
- IC_2118 type "Reflection".
- IC_2118 wikiPageUsesTemplate Template:Commons_category.
- IC_2118 wikiPageUsesTemplate Template:DEC.
- IC_2118 wikiPageUsesTemplate Template:Infobox_nebula.
- IC_2118 wikiPageUsesTemplate Template:Nebula-stub.
- IC_2118 wikiPageUsesTemplate Template:RA.
- IC_2118 wikiPageUsesTemplate Template:Reflist.
- IC_2118 wikiPageUsesTemplate Template:Sky.
- IC_2118 subject Category:Emission_nebulae.
- IC_2118 subject Category:IC_objects.
- IC_2118 subject Category:Orion_(constellation).
- IC_2118 type Catalogue.
- IC_2118 type Object.
- IC_2118 comment "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 Orion. It 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.".
- IC_2118 label "IC 2118".
- IC_2118 sameAs Q1079743.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs آیسی_۲۱۱۸.
- IC_2118 sameAs Noidanpääsumu.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs Nebulosa_Testa_di_Strega.
- IC_2118 sameAs 마귀할멈_성운.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs Raganos_Galvos_ūkas.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs Nebulosa_Cabeça_da_Bruxa.
- IC_2118 sameAs m.047vgd.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs Häxhuvudnebulosan.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs IC_2118.
- IC_2118 sameAs Q1079743.
- IC_2118 sameAs IC_2118.
- IC_2118 wasDerivedFrom IC_2118?oldid=706428869.
- IC_2118 depiction Reflection.nebula.arp.750pix.jpg.
- IC_2118 isPrimaryTopicOf IC_2118.