Image Egg Nebula.jpg thumb right 250px The Egg Nebula , a protoplanetarynebula in Cygnus constellation Cygnus A protoplanetarynebula or preplanetary nebula Harv Sahai S nchez Contreras Morris 2005 PPN ... 1 8 solar mass M sub sub . Harv Kastner 2005 Naming File IRAS 13208 6020.tif thumb Protoplanetarynebula IRAS 13208 6020 is formed from material that is shed by a central star. The name protoplanetarynebula is an unfortunate choice due to the possibility of confusion with the same term being sometimes employed when discussing the unrelated concept of protoplanetary disk s. The name protoplanetarynebula is a consequence of the older term planetary nebula , which was chosen due to early astronomers looking through telescopes and finding a similarity in appearance of planetary nebula to the gas .... Harv Davis Smith Gledhill Varricatt 2005 Protoplanetarynebula phase File IRAS 20068 4051.jpg thumb Protoplanetarynebula known as IRAS 20068 4051 taken by Hubble Space Telescope Hubble s Advanced Camera for Surveys. During the ensuing protoplanetarynebula phase, the central star s CS effective ... See also Bipolar nebula Bipolar outflow List of protoplanetary nebulae Planetary nebula Star DEFAULTSORT ProtoplanetaryNebula Category Protoplanetary nebulae Category Nebulae Category Stellar evolution ... nebula PN phase. A PPN emits strongly in infrared radiation, and is a kind of reflection nebula ... Morris 2005 suggests employing a new term preplanetary nebula which does not overlap with any other ... are bipolar nebula bipolar , knotty jets and Herbig Haro object Herbig Haro like bow shocks . These shapes ... ultraviolet radiation to ionize the circumstellar nebula ejected gases and it becomes a kind of emission nebula called a PN. This transition must take place in less than around 10,000 years or else ... 100 per cm and no PN will result, such a case is sometimes referred to as a lazy planetary nebula ... Near infrared echelle spectroscopy of protoplanetary nebulae probing the fast wind in H sub 2 sub ... more details
Image M42proplyds.jpg thumb A proplyd in the Orion Nebula Image Protoplanetary disk HH 30.jpg thumb The protoplanetary ... Vapor and Ice Abundance in a ProtoplanetaryNebula journal American Astronomical Society, DPS ... s Impression of a Baby Star Still Surrounded by a Protoplanetary Disc.jpg thumb An artist s impression of a protoplanetary disk. Credit ESO L. Cal ada Image Mamajek09 diskfraction.jpg thumb Fraction of stars that show some evidence of having a protoplanetary disk as a function of stellar age in millions ... last4 Ishii first4 Miki ref harv ref A protoplanetary disk is a rotating circumstellar disk of dense gas surrounding a young newly formed star, a T Tauri star , or Herbig Ae Be star . The protoplanetary ... protoplanetary disks are called proplyds. Formation Protoplanetary disks around T Tauri stars differ .... Protoplanetary disks have radii up to 1000 astronomical unit s, and only their innermost parts ... under its own gravity . As this collapsing cloud, called a solar nebula , becomes denser, random gas motions originally present in the cloud average out in favor of the direction of the nebula s net angular momentum. Conservation of angular momentum causes the rotation to increase as the nebula .... The oldest protoplanetary disk ever discovered is 25 million years old. ref cite journal bibcode ... pages L65 L68 doi 10.1086 428752 ref harv arxiv astro ph 0501307 ref The solar nebula nebular hypothesis of solar system formation describes how protoplanetary disks are thought to evolve into planetary ... T Tauri star. Protoplanetary disks have been observed around several young stars in our galaxy ... within the Orion Nebula . Gas poor disks of circumstellar dust have been found around many nearby ... not truly protoplanetary , but represent a later stage of disk evolution where extrasolar analogs ... analogs of the protoplanetary disks. The formation of planets and moons in geometrically ... have formed in the protoplanetary disk of cosmic dust dust grains surrounding the Sun before the formation ... more details
Protoplanetarynebula image File Westbrook Nebula.tif 300px name Westbrook Nebula caption Hubble Space Telescope Hubble image of the Westbrook Nebula credit ESA Hubble Space Telescope Hubble & NASA epoch J2000 ra RA 04 42 53.64 ref name SIMBAD cite web title Westbrook Nebula Post AGB Star work SIMBAD publisher Centre de Donn es astronomiques de Strasbourg url http simbad.u strasbg.fr simbad sim basic?Ident WESTBROOK NEBULA accessdate 2009 04 16 ref dec DEC 36 06 53.4 ref name SIMBAD constellation names CRL 618, IRAS 04395 3601, 2MASS J04425364 3606534, RAFGL 618 ref name SIMBAD Westbrook Nebula CRL 618 is an aspherical protoplanetarynebula . It is being formed by a star that has passed through the red giant phase and has ceased nuclear fusion at its core. This star is concealed at the center of the nebula, and is ejecting gas and dust at velocities of up to 200 km s. ref cite news author Christensen, Lars Lindberg Tielens, A.G.G.M. title A stellar cocoon soon to hatch to a butterfly publisher European Space Agency url http eu.spaceref.com news viewpr.html?pid 2515 date 2000 08 31 accessdate 2009 04 16 ref The nebula is named after William E. Westbrook, who died in 1975. ref cite journal author Westbrook, W. E. Gezari, D. Y. Hauser, M. G. Werner, M. W. Elias, J. H. Neugebauer, G. Lo, K. Y. title One millimeter continuum emission studies of four molecular clouds journal Astrophysical Journal volume 209 year 1976 pages 94&ndash 101 doi 10.1086 154695 bibcode 1976ApJ...209...94W ref This nebula began to form about 200 years ago, and primarily consists of molecular gas. The outer part of the nebula is the result of interaction between rapid bi polar outflow and the gas that was ejected ..., C. S. Sahai, R. Gil de Paz, A. title Physical structure of the protoplanetarynebula CRL618. I. Optical ... about 24 to the line of sight. The energy being radiated from the nebula consists of scattered ... . ref name apj578 References references Category Protoplanetary nebulae pl Mg awica Westbrook ... more details
For the Bow Tie Nebula C2 in Cepheus NGC 40 Protoplanetarynebula image Image Boomerang nebula.jpg 280px caption The Boomerang Nebula. Credit NASA ESA name Boomerang Nebula epoch J2000 ra RA 12 44 45.45 ref name simbad Cite document surname1 SIMBAD title Results for Boomerang Nebula authorlink SIMBAD ... Bot retrieved archive archivedate September 1, 2006 ref is a protoplanetarynebula ref http apod.nasa.gov apod ap071228.html ref this source indicates that it is evolving towards the planetary nebula phase, thus it is a preplanetary nebula or a protoplanetarynebula. located 5,000 light years away from Earth in the constellation Centaurus . The nebula is measured at convert 1 K C F abbr on lk on , the naturally ... Nebula SIMBAD , Coordinates and Scientific data. January 4, 2007. Category Protoplanetary nebulae ... url http simbad.u strasbg.fr simbad sim id?protocol html&Ident Boomerang Nebula postscript None ... ref name simbad constellation Centaurus names Centaurus Bipolar Nebula ref name simbad The Boomerang Nebula also called the Bow Tie Nebula ref name smh Cite news last Cauchi first Stephen title Coolest ... name smh The Boomerang Nebula was formed from the outflow of gas from a star at its core. The gas is moving ... is the cause of the nebula s very low temperature. File Boomerang HST big.jpg thumb left ... coded by the angle associated with the polarized light. The Boomerang Nebula was photographed in detail by the Hubble Space Telescope in 1998. It is believed that the nebula is a star or stellar system evolving toward the planetary nebula planetary nebula phase . Keith Taylor and Mike Scarrott called it the Boomerang Nebula in 1980 after observing it with the Anglo Australian telescope at the Siding ... , the astronomers saw merely a slight asymmetry in the nebula s lobes, suggesting a curved shape like a boomerang . The high resolution Hubble images indicate that the Bow Tie Nebula would perhaps ... the Big Bang is warmer than the nebula. It is the only object found so far that has a temperature lower ... more details
Sky 21 02 18.75 36 41 37.8 Protoplanetarynebula image Image Egg Nebula.jpg 250px caption RAFGL 2688, the Egg Nebula name Egg Nebula type epoch J2000 ra RA 21 02 18.75 ref name simbad cite web title SIMBAD Astronomical Database work Results for Egg Nebula url http simbad.u strasbg.fr Simbad accessdate 2007 01 05 ref dec DEC 36 41 37.8 ref name simbad dist ly 1 E19 m 3 light year kly 920 parsec pc Fact date February 2007 appmag v 14.0 ref name simbad size v 30 15 constellation Cygnus constellation Cygnus radius ly 0.2 ly Ref label A a none absmag v 4.2 Ref label B b none notes names Revised Air Force Geophysics Laboratory RAFGL 2688, ref name simbad The Egg, ref name simbad br Cygnus Egg ref name simbad The Egg Nebula also known as RAFGL 2688 and CRL 2688 is a bipolar nebula bipolar protoplanetarynebula approximately 3,000 light year s away from Earth . Its peculiar properties were first described in 1975 using data from the 11 m survey obtained with sounding rocket by Air Force Geophysical Laboratory AFGL in 1971 to 1974. Previously, the object was catalogued by Zwicky as a pair of galaxies. The Egg Nebula s defining feature is the series of bright arcs and circles surrounding the central star. A dense layer of gas and dusts enshrouds the central star , blocking its direct light from our view. However, the light from the central star penetrates the thinner regions of this dusty ... 653 2006 . div Category Protoplanetary nebulae Category Cygnus constellation nebula stub cs Mlhovina ... several post AGB objects S. De Ruyter et al., 2006 , a disc around the Egg Nebula is yet to be confirmed. The Egg Nebula was photographed by the Wide Field and Planetary Camera 2 of the Hubble Space Telescope NASA ESA Hubble Space Telescope . Gallery gallery File Egg Nebula HST.jpg Image produced ... Hubble Images Searchlight Beams from a Preplanetary Nebula url http www.spacetelescope.org images potw1217a ... pl Mg awica Jajko pt Nebulosa do Ovo sk Egg Nebula sv ggnebulosan tr Yumurta Bulutsusu zh ... more details
of our solar system, the Stingray Nebula is only about 1 10 the size of most other known planetary nebulae. Forty years ago it was still a protoplanetarynebula in which the gas had not yet become hot ... in 1971 to be a Protoplanetarynebula pre planetary nebula PPNe when it seemed to be an asymptotic giant branch AGB B1 supergiant . Planetary nebula PN emission lines were identified in this star ...Planetary nebula image Image stingraynebula.jpg 250px caption Hubble Space Telescope photograph of the nebula Credit M. Bobrowsky and NASA name Stingray Nebula type epoch J2000 ra RA 17 16 21.071 ref name simbad Harvnb SIMBAD 2007 ref dec DEC 59 29 23.64 ref name simbad dist ly 1 E20 m 18 light year kly 5.6 parsec kpc ref name Bobrowsky1994 Harvnb Bobrowsky 1994 ref appmag v 10.75 ref name simbad size v 1&Prime .6 ref name Bobrowsky1994 constellation Ara constellation Ara radius ly 0.08 ly ref name ... 3 1357 ref name simbad The Stingray Nebula Hen 3 1357 is the youngest known planetary nebula PN . Harv ... magnitude central star. The image of the Stingray Nebula shown here shows how the outer shells of gas ... Prior to the discovery of the nebula, the central star of the Stingray Nebula was known as He3 ... 2000 ref As the nebula would be newly formed and very small, ground based observations were not able ..., discovering the nebula, which he named the Stingray Nebula. Planetary nebula nucleus PNN In 1995 the central planetary nebula nucleus PNN was observed as a DA white dwarf , having seemingly faded by a factor ... arcsec . Nebula mass is estimated as 0.015 M sub sub . Luminosity is estimated to be 3000 ... last1 Bobrowsky first1 Matthew title Narrowband HST Imagery of the Young Planetary Nebula Henize ... nebula journal Nature year 1998 volume 392 issue 6675 pages 469 471 bibcode 1998Natur.392..469B arxiv astro ph 9804022 citation last1 SIMBAD title Results for Stingray Nebula authorlink SIMBAD year ... simbad.u strasbg.fr simbad sim id?protocol html&Ident Stingray Nebula div External links commonscat ... more details
Protoplanetarynebula image image Rotteneggnebula.jpg 250px caption Calabash Nebula name Calabash Nebula epoch J2000 ra RA 07 42 16.83 ref name simbad Harv SIMBAD 2007 ref dec DEC 14 42 52.1 ref name simbad dist ly 1 E19 m 4.2 light year kly 1.3 parsec kpc ref name Kastneretal1998 Harv Kastner Weintraub Merrill Gatley 1998 ref appmag v 9.47 ref name simbad size v 1&prime Citation needed date February 2007 constellation Puppis radius ly 0.7 ly Ref label A a none absmag v 1.4 Ref label B b none notes names OH 231.84 4.22, ref name simbad br Rotten Eggs Nebula ref name simbad The Calabash Nebula , also known as the Rotten Egg Nebula or by its technical name OH 231.84 4.22 , is a protoplanetarynebula PPN 1.4 light year s 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 nebula bipolar gas structures. A team of Spanish and US astronomers used ... Nebula , APOD 1999 November 1 http antwrp.gsfc.nasa.gov apod ap010903123.html The Making of the Rotten Egg Nebula , APOD 2001 September 3 Category Protoplanetary nebulae Category Puppis constellation ... believe that 1,000 years from now, the Calabash Nebula will become a fully developed planetary nebula, like a butterfly emerging from its Pupa Chrysalis chrysalis . Trivia The Calabash Nebula ... Nebula div External links http photojournal.jpl.nasa.gov catalog PIA04228 PIA04228 Rotten Egg Nebula ... more details
. Protoplanetary disk s have been observed around most of the newly formed stars in the nebula ... 69 Diffuse nebula image Image Orion Nebula Hubble 2006 mosaic 18000.jpg 250px caption center The entire Orion Nebula in visible light. br Credit NASA ESA center name Orion Nebula type Diffuse nebula Reflection and Emission ref http books.google.com books?id R9tGGSX9eHcC&pg PA242&dq Orion Nebula 22emission nebula 22 22reflection nebula 22&hl en&ei xIVXTqCXDNG tgeb9bmSDA&sa X&oi book result&ct ... General Catalogue NGC 1976, M42, br LBN 974, Sharpless catalog Sharpless 281 The Orion Nebula also known as Messier 42 , M42 , or NGC 1976 is a diffuse nebula situated south Ref label B b none of Orion s Belt in the Orion constellation constellation of Orion . It is one of the brightest nebula e, and is visible ... Kameya ref and is the closest region of massive star formation to Earth . The M42 nebula is estimated ... frequently refer to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula . Citation needed date March 2012 The Orion Nebula is one of the most scrutinized and photographed objects ... Press release, http cfa www.harvard.edu press pr0605.html Astronomers Spot The Great Orion Nebula s Successor , Harvard Smithsonian Center for Astrophysics, 2006. ref The nebula has revealed much about .... Astronomers have directly observed protoplanetary disk s, brown dwarf s, intense and turbulent motions of the gas, and the Photoionisation photo ionizing effects of massive nearby stars in the nebula. There are also supersonic bullets of gas piercing the hydrogen clouds of the Orion Nebula. Each bullet ... Nebula date 2007 03 22 work Gemini Observatory accessdate 2010 06 01 ref General information File Orion composite1.jpg thumb right 200px The constellation of Orion with the Orion Nebula lower middle . The nebula is visible with the naked eye even from areas affected by some light pollution . It is seen ... or a small telescope . The Orion Nebula contains a very young open cluster , known as the Trapezium ... more details
wiktionarypar nebula A nebula is a cloud of gas and dust in space. Nebula may also refer to TOCright Science fiction Nebula Award , a science fiction award Nebula Science Fiction , a British science fiction magazine of the 1950s Nebula class starship Nebula class starship , a starship class in the Star Trek universe Music Nebula band , a psychedelic rock band from the United States Nebula Records , a record label Nebula , a song by Incubus band Incubus Nebula album Nebula album , an album by Kelis Nebula , a song featuring Hatsune Miku Hatsune Miku by Tripshots composer Tripshots Other uses Nebula comics , a Marvel Comics super villainess Nebula computer game Nebula computer game , a 1984 ZX Spectrum game Nebula computing platform , a cloud computing platform by NASA Nebula moth Nebula moth , a moth genus Nebula design contest , a contest by Cosmic Circuits Nebula Device , an open source realtime 3D game engine Nebula Electronics , a DigiTV DVB T card manufacturer Nebula, a fictional organization in Mega Man Battle Network See also Nebulae computer , a supercomputer in the National Supercomputing Centre in Shenzhen, China Nebulous disambiguation Planetary nebula List of planetary nebulae disambig cs Nebula de Nebula es Nebula desambiguaci n fr Nebula hr Nebula he la Nebula ja no Nebula pt Nebula sk Nebula fi Nebula t smennyssivu tr Nebula anlam ayr m ... more details
Butterfly Nebula may refer to Planetary Nebula M2 9 NGC 6302 NGC 2346 Little Dumbbell Nebula SIA astronomical objects Category Nebulae ko ... more details
evolutionary stage Asymptotic giant branch Protoplanetarynebula Subsequent evolutionary stage ... another three dimensional shell. X ray optical composite image of the Cat s Eye Nebula . File ... by Hubble Space Telescope.jpg 250px thumb NGC 6326, a planetary nebula with glowing wisps of outpouring ... 2011 ref central star nearing the end of its life. A planetary nebula is an emission nebula consisting ... nebula . Planetary nebulae play a crucial role in the chemistry chemical Galaxy formation and evolution ... nebulae are generally faint objects none are visible to the naked eye . The first planetary nebula discovered was the Dumbbell Nebula in the constellation of Vulpecula , observed by Charles Messier ... , discoverer of this planet, eventually coined ref name Kwok1 the term planetary nebula for them ... image. center NGC 7293, The Helix Nebula br Credit NASA, ESA, and C.R. O Dell Vanderbilt University ... the spectrum of a planetary nebula when he analyzed NGC 6543 . ref name Kwok1 His observations ... Galaxy Andromeda Nebula as it was then known had spectra which were quite similar to this these nebulae were later shown to be galaxy galaxies . However, when he looked at the Cat s Eye Nebula , he ..., the Cat s Eye Nebula and other similar objects showed only a small number of Emission spectrum emission .... center NGC 2392, The Eskimo Nebula br Credit NASA, ESA, Andrew Fruchter STScI , and the ERO ... Hyung 2003 p 15 ref The youngest known planetary nebula is the Stingray Nebula . Under the Morgan Keenan ... nebula simulation.jpg thumb alt Central star has elongated S shaped curve of white emanating in opposite ... to the body of the butterfly. Computer simulation of the formation of a planetary nebula from a star ... 2009 pp 127&ndash 37 ref Planetary nebula may result from the death of intermediate and low mass ... a planetary nebula. ref name Harpaz6 Lifetime File Necklace Nebula.jpg thumb The Necklace Nebula consists of a bright ring, measuring about two light years across, dotted with dense, bright ... more details
Italic title Taxobox name Testudovolva nebula image image caption regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Caenogastropoda br clade Hypsogastropoda br clade Littorinimorpha superfamilia Cypraeoidea familia Ovulidae subfamilia Prionovolvinae genus Testudovolva subgenus species T. nebula binomial Testudovolva nebula binomial authority Azuma & Cate, 1971 synonyms ref ref name WoRMS synonyms Prionovolva nebula small Azuma & Cate, 1971 small Testudovolva nebula is a species of sea snail , a marine gastropod mollusk in the family biology family Ovulidae , the ovulids, cowry allies or false cowries. ref name WoRMS WRMS species 430570 Testudovolva nebula Azuma & Cate, 1971 WoRMS 2009 . Testudovolva nebula Azuma & Cate, 1971 . Accessed through World Register of Marine Species at nowiki http www.marinespecies.org aphia.php?p taxdetails&id 430570 nowiki on 5 June 2010 ref Description Empty section date June 2010 Distribution Empty section date June 2010 References reflist External links Use dmy dates date January 2011 DEFAULTSORT Testudovolva Nebula Category Ovulidae Ovulidae stub vi Testudovolva nebula ... more details
Image WilliamsNebula.jpg thumb alt Nebula Award upright Nebula Award for Best Novella for The Green Leopard Plague , by Walter Jon Williams The Nebula Award is given each year by the Science Fiction and Fantasy ... itself being a transparent block with an embedded glitter spiral nebula with gemstones cut to resemble ... of America title SFWA Presents 2006 Nebula Awards and Norton Award url http www.sfwa.org pressbook ... Starting with the 2009 awards, the Nebula Awards will move to a standard calendar year eligibility ... Prior to 2009, the Nebula Awards employed a rolling eligibility system. Each work was eligible ... eligibility, a work published one year could end up on the subsequent year s Nebula ballot, which ... upon by SFWA members in 2002. Special Nebula juries were permitted, but not required, to add one ... ballot. The 2007 Nebula Awards were announced on April 26, 2008, in Austin, Texas . ref name dmn1 cite news work Dallas Morning News title Nebula Awards puts Austin and Texas writers at center of science ... Science Fiction and Fantasy Writers of America title 2008 Nebula Awards Weekend to be held ... accessdate September 27, 2009 ref Lists of Nebula Award winners Nebula Award for Best Novel Nebula Award for Best Novella Nebula Award for Best Novelette Nebula Award for Best Short Story Nebula Award for Best Script Other awards presented at the Nebula ceremony Though not officially Nebula Awards, a number of other honors and awards are presented at the Nebula ceremony, though not necessarily every ... award, the Solstice can be presented posthumously. ref cite book title Nebula Awards Ceremony 2009 publisher SFWA date 2009 location Los Angeles, CA pages 13 ref See also Wikipedia Books Nebula Awards for Best Novel laureates Hugo Award List of joint winners of the Hugo and Nebula awards Nebula Winners Twelve Nebula Winners Thirteen The Science Fiction Hall of Fame, The Science Fiction Hall of Fame ... and footnotes reflist 2 External links http www.nebulaawards.com The Nebula Awards homepage ... more details
Refimprove date July 2010 Dark nebula image File ESO Horsehead Nebula.jpg 250px name Horsehead Nebula type dark nebula diffuse nebulae epoch J2000.0 ra 05 sup h sup 40 sup m sup 59.0 sup s sup dec 02 27 ... 33, br LDN 1630, M3T 31, br OS98 52 The Horsehead Nebula also known as Barnard 33 in emission nebula IC 434 is a dark nebula in the constellation Orion constellation Orion . ref Arnett, Bill. http astro.nineplanets.org twn b33x.html. Horsehead Nebula , 2000 ref The nebula is located just to the south ... larger Orion Molecular Cloud Complex . The nebula was first recorded in 1888 by Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory. The Horsehead Nebula is approximately ... or pinkish glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby ... the lower part of the Horsehead s neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field . Bright spots in the Horsehead Nebula s base are young stars just in the process of forming. The nebula exhibits a noticeable change in the density of the stars ... of the nebula emerges from the gaseous complex to serve as an active site of the formation of low mass ... im0057.html. ref The dark cloud of dust and gas is a region in the Orion Nebula where star formation ... molecules. The region of the Orion Nebula containing the Horsehead is a stellar nursery. The darkness of the massive nebula is not explained by this dust and gas, but by the complex blocking the light ... 793 822 ref . The heavy concentrations of dust in the Horsehead Nebula region and neighbouring Orion Nebula are localized, resulting in sections of almost complete transparency. ref Morgan, W.W., Loden ... angle view of the nebula with large gaseous clouds off to the side gallery See also Nebulae in fiction Horsehead Nebula Horsehead Nebula in fiction References reflist External links Commonscat inline Horsehead Nebula http www.glyphweb.com esky nebulae ic434.html The Horsehead Nebula The Electronic Sky ... more details
Infobox diffuse nebula image Image Rosette nebula Lanoue.png 300px caption The Rosette Nebula H Alpha name Rosette Nebula type Emission nebula Emission epoch J2000.0 ra RA 06 33 45 ref name simbad cite ... angle constellation Monoceros radius ly 65 ly absmag v notes Multipart nebula names SH 2 275, ref name simbad CTB 21, ref name simbad Caldwell catalogue Caldwell 49 The Rosette Nebula also known ... associated with the nebulosity, the star s of the cluster having been formed from the nebula ... region Also used to denote whole nebula NGC 2238 Part of the nebulous region NGC 2239 Part of the nebulous region Discovered by John Herschel NGC 2244 The open cluster within the nebula Discovered by John Flamsteed in 1690 NGC 2246 Part of the nebulous region The cluster and nebula lie at a distance ... roughly 130 light years in diameter. The radiation from the young stars excite the atom s in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula ... formation in the nebula. This star formation is currently still ongoing. A survey of the nebula ... of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvin s causing them to emit copious amounts of X rays . Observing the Rosette Nebula The cluster of stars is visible in binoculars and quite well seen in small telescope s while the nebula ... pollution dark site is a must to see it. Photography Photographically the Rosette Nebula is easier ... Gallery Image Rosette nebula 09 01 2005.jpeg Image Rosette nebula s.jpg Image Redrosedust wright f2000.jpg A close up view of the Rosette Nebula File AAA Best Rosette sml.jpg Gallery References Reflist External links http www.seds.org messier xtra ngc n2244.html Rosette Nebula SEDS http chandra.harvard.edu press 01 releases press 090601wind.html Chandra Observatory study of the Rosette Nebula ... Nebula http www.nightskyinfo.com archive rosette nebula NightSkyInfo.com Rosette Nebula Astronomy ... more details
about the nebula Hourglass disambiguation Planetary nebula image File MyCn18 crop.png 200px caption Hubble Space Telescope image of the Hourglass Nebula name Hourglass Nebula type ??? epoch J2000 ra RA 13 39 35.116 ref name simbad cite web title SIMBAD Astronomical Database work Results for PN MyCn 18 url http simbad.u strasbg.fr Simbad accessdate 2006 12 22 ref dec DEC 67 22 51.45 ref name simbad dist ly 1 E19 m 8 light year kly 2.5 parsec kpc Citation needed date February 2007 appmag v 13.0 ref ... Engraved Hourglass Nebula, ref name simbad br Etched Hourglass Nebula, ref name simbad br PN MyCn 18 ref name simbad The Engraved Hourglass Nebula also known as MyCn 18 is a young planetary nebula situated ... faint planetary nebula. Much improved telescopes and imaging techniques allowed the hourglass shape of the nebula to be discovered by Raghvendra Sahai and John Trauger of the Jet Propulsion Laboratory .... The Hourglass Nebula was photographed by the Wide Field and Planetary Camera 2 of the Hubble Space Telescope . A less famous Hourglass Nebula is located inside the Lagoon Nebula . Hourglass Nebula in popular culture The Hourglass Nebula was featured on the cover of the April 1997 issue of National Geographic magazine National Geographic . The nebula s unique appearance led the magazine s editors ..., and it seemed that the eye of God was staring back. The Hourglass Nebula also serves as the front cover for Pearl Jam s 2000 album Binaural album Binaural . The Hourglass Nebula appears in the popular game, Final Doom . The Hourglass Nebula appears on a poster in the CERN laboratory in the film Angels & Demons film Angels & Demons . The Hourglass Nebula appears extensively, and is used as a major ... Nebula appears in the video games titled Mass Effect 2 and Mass Effect 3 as one of the clusters ... . See also Nebulae in fiction Hourglass Nebula Hourglass Nebula in fiction . References div class ... an Hourglass Nebula around a Dying Star . Press release Space Telescope Science Institute . January ... more details
File Planetary Nebula M2 9.jpg thumb Planetary Nebula M2 9 , otherwise known as the Twin Jet Nebula or the Wings of a Butterfly Nebula , is a good example of a bipolar or two lobed nebula. A bipolar nebula ..., but not all, planetary nebula e exhibit an observed bipolar structure. It may be that the two types of nebulae are directly related, one preceding or superseding the other in the evolution of the nebula ... Homunculus Nebula around Eta Carinae ref http hubblesite.org newscenter newsdesk archive releases 1996 ... Eta Carinae Nebula NGC 3372 . Daviddarling.info 2007 02 01 . Retrieved on 2010 11 26. ref Hubble ... Images ref M2 9 The Planetary Nebula M2 9 Wings of a Butterfly Nebula ref http antwrp.gsfc.nasa.gov apod ap050612.html APOD 2005 June 12 M2 9 Wings of a Butterfly Nebula . Antwrp.gsfc.nasa.gov. Retrieved ... Planetary Nebula . Antwrp.gsfc.nasa.gov 1997 10 21 . Retrieved on 2010 11 26. ref ref http www.daviddarling.info encyclopedia B Butterfly Nebula.html Butterfly Nebula M 2 9 . Daviddarling.info 2007 02 01 . Retrieved on 2010 11 26. ref OH231.8 4.2 The Calabash Nebula or Rotten Egg Nebula ref http hubblesite.org newscenter newsdesk archive releases 1999 39 NewsCenter The Rotten Egg Nebula A Planetary Nebula in the Making 10 19 1999 Introduction . HubbleSite 1999 10 19 . Retrieved on 2010 ..., 1999 The Rotten Egg Planetary Nebula . Antwrp.gsfc.nasa.gov 1999 11 01 . Retrieved on 2010 11 26. ref ... Nebula . Antwrp.gsfc.nasa.gov. Retrieved on 2010 11 26. ref ref http www.daviddarling.info encyclopedia C Calabash Nebula.html Calabash Nebula OH231.8 4.2 . Daviddarling.info 2007 02 01 . Retrieved on 2010 11 26. ref ref name autogenerated1 Mz3 or Menzel 3 The Mz3 Ant Nebula ref http hubblesite.org .... ref ref http antwrp.gsfc.nasa.gov apod ap050501.html APOD 2005 May 1 Planetary Nebula Mz3 The Ant Nebula . Antwrp.gsfc.nasa.gov. Retrieved on 2010 11 26. ref ref http www.daviddarling.info encyclopedia A Ant Nebula.html Ant Nebula Menzel 3 . Daviddarling.info 2007 02 01 . Retrieved on 2010 11 26 ... more details
Nebula of Orion may refer to Star clusters in the constellation Orion Orion Nebula , largest, in its belt Collinder 69 , earlier identified one, at its head See also Total of 8 Orion Molecular Cloud Complex Nebulae within the complex nebulae within the Orion Molecular Cloud Complex Disambig ... more details
Unreferenced date March 2012 Planetary nebula name Messier 97 image Image M97.jpg 250px caption Owl Nebula name Owl Nebula type 3a epoch J2000.0 ra 11 sup h sup 14.8 sup m sup dec 55 01&prime dist ly 1 E22 m 2,600 light year ly appmag v 9.9 size v 3.4 × 3.3 Minute of arc arcmin constellation Ursa Major radius ly 1.5 light year ly absmag v notes Owl like eyes visible through larger telescopes names M97, NGC 3587 The Owl Nebula also known as Messier Object 97 or New General Catalogue NGC 3587 is a planetary nebula in the constellation Ursa Major . It was discovered by Pierre M chain in 1781. M97 is regarded as one of the more complex of the planetaries. The 16th apparent magnitude magnitude central star has about 0.7 solar mass and the nebula itself about 0.15 solar mass. The nebula formed roughly 6,000 years ago. The nebula gets its name from the appearance of owl like eyes when viewed through a large 200 mm telescope under dark sky conditions with the aid of a so called nebula filter. The eyes are also easily visible in photographs of the nebula. Image M97 FTN.jpg thumb left Image of Messier 97 taken with red, green br and blue filters with the Faulkes Telescope North See also Messier object List of Messier objects New General Catalogue List of planetary nebulas References reflist External links http www.caha.es the owl nebula.html The Owl Nebula at Calar Alto Observatory http www.seds.org messier m m097.html The Owl Nebula SEDS Messier pages http www.nightskyinfo.com archive owl nebula NightSkyInfo.com M97, the Owl Nebula WikiSky name The Owl Nebula Messier objects Sky 11 14.8 00 55 01 00 2600 Category Messier objects Owl Nebula Category NGC objects Category Planetary nebulae Category Ursa Major constellation Category Orion Cygnus Arm nebula stub ar az NGC 3587 zh min nan Messier 97 be M97 be x old M97 bg M97 ca Nebulosa del Mussol cs Sov mlhovina co M97 de Eulennebel el 97 es Nebulosa del B ho eo M97 eu Hontzaren Nebulosa fa ... more details
Image Ngc2261.jpg right 300px thumb A Hubble Space Telescope image of NGC 2261 , a classic example of a variable nebula. Variable nebulae are reflection nebula reflection nebulae that change in brightness because of changes in their star. See also NGC 1555 NGC 2261 Category Reflection nebulae Category Nebulae nebula stub es Nebulosa variable hr Promjenljiva maglica it Nebulosa variabile ja ru simple Variable nebula tr De i en bulutsu vi Tinh v n bi n quang zh ... more details
italic title Taxobox name Nebula image image width 300px regnum Animal ia phylum Arthropod a classis Insect a ordo Lepidoptera familia Geometridae subfamilia Larentiinae tribus Cidariini genus Nebula genus authority subdivision ranks Species subdivision Nebula is a genus of moth in the family Geometridae . References http www.nhm.ac.uk jdsml research curation projects butmoth GenusList3.dsml?searchPageURL index.dsml&SUPERFAMIL &FAMILYqtype starts with&FAMILY geometridae&SUBFAMILYqtype starts with&SUBFAMILY &TRIBEqtype starts with&TRIBE &SUBTRIBEqtype starts with&SUBTRIBE &GENUSqtype starts with&GENUS &AUTHORqtype starts with&AUTHOR &YEARqtype equals&YEAR &sort GENUS Natural History Museum Lepidoptera genus database Category Cidariini Larentiinae stub vi Nebula b m m ... more details
Dark nebula name E or Barnard s E Nebula image Image ENebulaHunterWilson.jpg 300px caption Barnard s E Nebula B142, 143 type Dark epoch J2000.0 ra 19 sup h sup 40 sup m sup 42 sup s sup dec 10 57&prime dist ly 2000 dist pc 200 appmag v size v 30 Minute of arc arcmins constellation Aquila constellation Aquila radius ly absmag v notes names Barnard 142, 143 The E or Barnard s E Nebula officially designated as Barnard s Catalog Barnard 142 and 143 is a pair of dark nebula in the Aquila constellation Aquila constellation. It is a well defined dark area on a background of Milky Way consisting of countless stars of all magnitudes. Its size is about that of the full moon , or roughly 0.5 degrees, and its distance from earth is estimated at about 2000 light years . External links WikiSky name The E Nebula HD 157398 z 8 http www.dvaa.org AData Barnard.html Barnard s Catalog Sky 19 40 42 10 57 00 2000 http www.perseus.gr Astro DSO Nebulae Dark B143.htm B143 Hires LRGB CCD Image http project nightflight.net print014.html B142 143 DSLR Image Category Dark nebulae Category Barnard objects de E Nebula ko E it Nebulosa E pl Mg awica E tr E Bulutsusu ... more details
Unreferenced date December 2007 Image Pistol star and nebula.jpg thumb right False color image of the Pistol Star and Pistol Nebula, taken by Near Infrared Camera and Multi Object Spectrometer NICMOS The Pistol Nebula surrounds one of the most massive stars known, the Pistol Star . Both are located 25,000 light years away from Earth, near the center of the Milky Way galaxy . The nebula contains approximately 10 solar mass es worth of ionized gas that was ejected by the star several thousand years ago. The nebula was named in the 1980s for its shape as seen in low resolution images that were available at the time. The pistol star, a luminous blue variable is 1.7 million times as bright as the Sun, and 120 200 times as massive. Category H II regions nebula stub it Nebulosa Pistola nl Pistoolnevel pt Nebulosa da Pistola ru zh ... more details
A pinwheel nebula is a nebulous region in the shape of a pinwheel . Spiral galaxies main Spiral galaxy The term Pinwheel nebula is an antiquated misnomer used by observers before Edwin Hubble realized that these spiral shaped nebulae were actually island universes . Wolf Rayet nebulae main Wolf Rayet nebula Some Wolf Rayet star s are surrounded by pinwheel nebulae. These nebulae are formed from the dust that is spewed out of a binary star system. The stellar winds of the two stars collide and form two dust lanes that spiral outward with the rotation of the system. External links http www.physics.usyd.edu.au gekko wr104.html Some Wolf Rayet stars in binaries are close enough that we can image a rotating pinwheel nebula showing the dust generated by colliding winds in the binary system, from Aperture Masking Interferometry observations. http www.spacetelescope.org news html heic0602.html Pinwheel Galaxy from ESA Hubble Category Spiral galaxies Category Pinwheel nebulae astronomy stub nebula stub ... more details
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