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- Calabash_Nebula abstract "The Calabash Nebula, also known as the Rotten Egg Nebula or by its technical name OH 231.84 +4.22, is a protoplanetary nebula (PPN) 1.4 light years (13 Pm) long and located some 5,000 light years (47 Em) from Earth in the constellation Puppis. Violent gas collisions that produced supersonic shock fronts in a dying star are seen in a new, detailed image from NASA's Hubble Space Telescope. The object is sometimes called the Rotten Egg Nebula because it contains a relatively large amount of sulfur. The densest parts of the nebula are composed of material ejected recently by the central star and accelerated in opposite directions. This material, shown as yellow in the image, is zooming away at speeds up to one and a half million kilometers per hour (one million miles per hour). Most of the star's original mass is now contained in these bipolar gas structures. A team of Spanish and US astronomers used NASA's Hubble Space Telescope to study how the gas stream rams into the surrounding material, shown in blue. They believe that such interactions dominate the formation process in planetary nebulae. Due to the high speed of the gas, shock-fronts are formed on impact and heat the surrounding gases. Although computer calculations have predicted the existence and structure of such shocks for some time, previous observations have not been able to prove the theory. This new Hubble image used filters that only let through light from ionized hydrogen and nitrogen atoms. Astronomers were able to distinguish the warmest parts of the gas heated by the violent shocks and found that they form a complex double-bubble shape. The bright yellow-orange colors in the picture show how dense, high-speed gas is flowing from the star, like supersonic speeding bullets ripping through a medium in opposite directions. The central star itself is hidden in the dusty band at the center. Much of the gas flow observed today seems to stem from a sudden acceleration that took place only about 800 years ago. The astronomers believe that 1,000 years from now, the Calabash Nebula will become a fully developed planetary nebula, like a butterfly emerging from its chrysalis.".
- Calabash_Nebula thumbnail Rotteneggnebula.jpg?width=300.
- Calabash_Nebula wikiPageExternalLink nph-bib_query?bibcode=1998AJ....116.1412K.
- Calabash_Nebula wikiPageExternalLink ap010903123.html.
- Calabash_Nebula wikiPageExternalLink ap991101.html.
- Calabash_Nebula wikiPageExternalLink PIA04228.
- Calabash_Nebula wikiPageExternalLink sim-id?protocol=html&Ident=Calabash+Nebula.
- Calabash_Nebula wikiPageID "447033".
- Calabash_Nebula wikiPageRevisionID "550917114".
- Calabash_Nebula absmagV "-1.4".
- Calabash_Nebula appmagV "9.47".
- Calabash_Nebula caption "Calabash Nebula".
- Calabash_Nebula constellation Puppis.
- Calabash_Nebula distLy "4.2".
- Calabash_Nebula epoch Epoch_(astronomy).
- Calabash_Nebula hasPhotoCollection Calabash_Nebula.
- Calabash_Nebula name "Calabash Nebula".
- Calabash_Nebula names "OH 231.84 +4.22,".
- Calabash_Nebula names "Rotten Eggs Nebula".
- Calabash_Nebula notes "-".
- Calabash_Nebula radiusLy "0.7".
- Calabash_Nebula sizeV "1".
- Calabash_Nebula subject Category:Protoplanetary_nebulae.
- Calabash_Nebula subject Category:Puppis_(constellation).
- Calabash_Nebula type Abstraction100002137.
- Calabash_Nebula type Chemical114806838.
- Calabash_Nebula type Compound114818238.
- Calabash_Nebula type Formulation114873641.
- Calabash_Nebula type Material114580897.
- Calabash_Nebula type Matter100020827.
- Calabash_Nebula type Nebula114960606.
- Calabash_Nebula type Part113809207.
- Calabash_Nebula type PhysicalEntity100001930.
- Calabash_Nebula type ProtoplanetaryNebulae.
- Calabash_Nebula type Relation100031921.
- Calabash_Nebula type Substance100019613.
- Calabash_Nebula comment "The Calabash Nebula, also known as the Rotten Egg Nebula or by its technical name OH 231.84 +4.22, is a protoplanetary nebula (PPN) 1.4 light years (13 Pm) long and located some 5,000 light years (47 Em) from Earth in the constellation Puppis. Violent gas collisions that produced supersonic shock fronts in a dying star are seen in a new, detailed image from NASA's Hubble Space Telescope.".
- Calabash_Nebula label "Calabash Nebula".
- Calabash_Nebula label "Mgławica Tykwa".
- Calabash_Nebula label "Nebulosa de la Calabaza".
- Calabash_Nebula label "Nebulosa do Ovo Podre".
- Calabash_Nebula label "Nébuleuse de l'Œuf pourri".
- Calabash_Nebula label "OH 231.8+4.2".
- Calabash_Nebula label "Тухлое яйцо (туманность)".
- Calabash_Nebula label "ひょうたん星雲".
- Calabash_Nebula label "葫蘆星雲".
- Calabash_Nebula sameAs Zkažené_vajíčko.
- Calabash_Nebula sameAs OH_231.8+4.2.
- Calabash_Nebula sameAs Nebulosa_de_la_Calabaza.
- Calabash_Nebula sameAs Nébuleuse_de_l'Œuf_pourri.
- Calabash_Nebula sameAs ひょうたん星雲.
- Calabash_Nebula sameAs 호리병박_성운.
- Calabash_Nebula sameAs Mgławica_Tykwa.
- Calabash_Nebula sameAs Nebulosa_do_Ovo_Podre.
- Calabash_Nebula sameAs m.029jb2.
- Calabash_Nebula sameAs Q1194451.
- Calabash_Nebula sameAs Q1194451.
- Calabash_Nebula sameAs Calabash_Nebula.
- Calabash_Nebula wasDerivedFrom Calabash_Nebula?oldid=550917114.
- Calabash_Nebula depiction Rotteneggnebula.jpg.
- Calabash_Nebula isPrimaryTopicOf Calabash_Nebula.