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- Medusa_Nebula abstract "The Medusa Nebula is a large planetary nebula in the constellation of Gemini on the Canis Minor border. It also known as Abell 21 and Sharpless 2-274. It was originally discovered in 1955 by UCLA astronomer George O. Abell, who classified it as an old planetary nebula. The braided serpentine filaments of glowing gas suggests the serpent hair of Medusa found in ancient Greek mythology.Until the early 1970s, the Medusa was thought to be a supernova remnant. With the computation of expansion velocities and the thermal character of the radio emission, Soviet astronomers in 1971 concluded that it was most likely a planetary nebula.As the nebula is so big, its surface brightness is very low, with surface magnitudes of between +15.99 and +25 reported. Because of this most websites recommend at least an 8-inch (200 mm) telescope with an [O III] filter to find this object although probably possible to image with smaller apertures.".
- Medusa_Nebula thumbnail Medusa_nebula.jpg?width=300.
- Medusa_Nebula wikiPageExternalLink ap100612.html.
- Medusa_Nebula wikiPageExternalLink sharpless.py?s=274.
- Medusa_Nebula wikiPageExternalLink medusa%20nebula.htm.
- Medusa_Nebula wikiPageID "5642715".
- Medusa_Nebula wikiPageLength "4136".
- Medusa_Nebula wikiPageOutDegree "29".
- Medusa_Nebula wikiPageRevisionID "685679543".
- Medusa_Nebula wikiPageWikiLink Abell_12.
- Medusa_Nebula wikiPageWikiLink Abell_13.
- Medusa_Nebula wikiPageWikiLink Abell_33.
- Medusa_Nebula wikiPageWikiLink Abell_39.
- Medusa_Nebula wikiPageWikiLink Abell_70.
- Medusa_Nebula wikiPageWikiLink Abell_78.
- Medusa_Nebula wikiPageWikiLink Abell_Catalog_of_Planetary_Nebulae.
- Medusa_Nebula wikiPageWikiLink Abell_catalogue.
- Medusa_Nebula wikiPageWikiLink Astronomy_Picture_of_the_Day.
- Medusa_Nebula wikiPageWikiLink Canis_Minor.
- Medusa_Nebula wikiPageWikiLink Category:Abell_planetary_nebulae.
- Medusa_Nebula wikiPageWikiLink Category:Astronomical_objects_discovered_in_1955.
- Medusa_Nebula wikiPageWikiLink Category:Gemini_(constellation).
- Medusa_Nebula wikiPageWikiLink Category:Planetary_nebulae.
- Medusa_Nebula wikiPageWikiLink Category:Sharpless_objects.
- Medusa_Nebula wikiPageWikiLink Doubly_ionized_oxygen.
- Medusa_Nebula wikiPageWikiLink Gemini_(constellation).
- Medusa_Nebula wikiPageWikiLink George_Ogden_Abell.
- Medusa_Nebula wikiPageWikiLink Greek_mythology.
- Medusa_Nebula wikiPageWikiLink Light-year.
- Medusa_Nebula wikiPageWikiLink Medusa.
- Medusa_Nebula wikiPageWikiLink Parsec.
- Medusa_Nebula wikiPageWikiLink Planetary_nebula.
- Medusa_Nebula wikiPageWikiLink Sharpless_catalog.
- Medusa_Nebula wikiPageWikiLink University_of_California,_Los_Angeles.
- Medusa_Nebula wikiPageWikiLink File:Medusa_nebula.jpg.
- Medusa_Nebula wikiPageWikiLinkText "Medusa Nebula".
- Medusa_Nebula absmagV "7.68".
- Medusa_Nebula appmagV "15.99".
- Medusa_Nebula caption "Medusa nebula, 24 inch telescope on Mt. Lemmon, AZ.".
- Medusa_Nebula constellation Gemini_(constellation).
- Medusa_Nebula distLy "1500.0".
- Medusa_Nebula epoch "J2000.0".
- Medusa_Nebula name "Medusa Nebula".
- Medusa_Nebula names "Sharpless 2-274, PK 205+14 1, Abel 21".
- Medusa_Nebula notes "Very large & very low surface brightness".
- Medusa_Nebula sizeV "4.0".
- Medusa_Nebula wikiPageUsesTemplate Template:About.
- Medusa_Nebula wikiPageUsesTemplate Template:Citation_needed.
- Medusa_Nebula wikiPageUsesTemplate Template:Convert.
- Medusa_Nebula wikiPageUsesTemplate Template:DEC.
- Medusa_Nebula wikiPageUsesTemplate Template:Planetary_nebula.
- Medusa_Nebula wikiPageUsesTemplate Template:RA.
- Medusa_Nebula wikiPageUsesTemplate Template:Reflist.
- Medusa_Nebula wikiPageUsesTemplate Template:Sh2_objects.
- Medusa_Nebula wikiPageUsesTemplate Template:Sky.
- Medusa_Nebula wikiPageUsesTemplate Template:Use_dmy_dates.
- Medusa_Nebula subject Category:Abell_planetary_nebulae.
- Medusa_Nebula subject Category:Astronomical_objects_discovered_in_1955.
- Medusa_Nebula subject Category:Gemini_(constellation).
- Medusa_Nebula subject Category:Planetary_nebulae.
- Medusa_Nebula subject Category:Sharpless_objects.
- Medusa_Nebula hypernym Nebula.
- Medusa_Nebula type Star.
- Medusa_Nebula type Catalogue.
- Medusa_Nebula type Object.
- Medusa_Nebula comment "The Medusa Nebula is a large planetary nebula in the constellation of Gemini on the Canis Minor border. It also known as Abell 21 and Sharpless 2-274. It was originally discovered in 1955 by UCLA astronomer George O. Abell, who classified it as an old planetary nebula. The braided serpentine filaments of glowing gas suggests the serpent hair of Medusa found in ancient Greek mythology.Until the early 1970s, the Medusa was thought to be a supernova remnant.".
- Medusa_Nebula label "Medusa Nebula".
- Medusa_Nebula sameAs Q1148673.
- Medusa_Nebula sameAs Category:Medusa_Nebula.
- Medusa_Nebula sameAs Medusanebel.
- Medusa_Nebula sameAs Abell_21.
- Medusa_Nebula sameAs Abell_21.
- Medusa_Nebula sameAs Sh2-274.
- Medusa_Nebula sameAs 메두사_성운.
- Medusa_Nebula sameAs Abell_21.
- Medusa_Nebula sameAs Mgławica_Meduza.
- Medusa_Nebula sameAs m.0dxwrz.
- Medusa_Nebula sameAs Туманность_Медуза.
- Medusa_Nebula sameAs Medusanebulosan.
- Medusa_Nebula sameAs Medusa_Bulutsusu.
- Medusa_Nebula sameAs Туманність_Медуза.
- Medusa_Nebula sameAs Q1148673.
- Medusa_Nebula sameAs 蛇妖星雲.
- Medusa_Nebula wasDerivedFrom Medusa_Nebula?oldid=685679543.
- Medusa_Nebula depiction Medusa_nebula.jpg.
- Medusa_Nebula isPrimaryTopicOf Medusa_Nebula.