Faili:Wolf rayet2.jpg

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Faili halisi ‎(piseli 611 × 641, saizi ya faili: 606 KB, aina ya MIME: image/jpeg)

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Maelezo

This NASA Hubble Space Telescope picture of the energetic star WR124 reveals it is surrounded by hot clumps of gas being ejected into space at speeds of over 100,000 miles per hour.

Also remarkable are vast arcs of glowing gas around the star, which are resolved into filamentary, chaotic substructures, yet with no overall global shell structure. Though the existence of clumps in the winds of hot stars has been deduced through spectroscopic observations of their inner winds, Hubble resolves them directly in the nebula M1-67 around WR124 as 100 billion-mile wide glowing gas blobs. Each blob is about 30 times the mass of the Earth.

The massive, hot central star is known as a Wolf-Rayet star. This extremely rare and short-lived class of super-hot star (in this case 50,000 degrees Kelvin) is going through a violent, transitional phase characterized by the fierce ejection of mass. The blobs may result from the furious stellar wind that does not flow smoothly into space but has instabilities which make it clumpy.

The surrounding nebula is estimated to be no older than 10,000 years, which means that it is so young it has not yet slammed into the gasses comprising the surrounding interstellar medium.

The star is 15,000 light-years away, located in the constellation Sagitta. The picture was taken with Hubble's Wide Field Planetary Camera 2 in March 1997. The image is false-colored to reveal details in the nebula's structure.

Tarehe

Machi 1997

Chanzo

http://hubblesite.org/newscenter/archive/releases/1998/38/image/a/ (direct link)

Mwandishi

Yves Grosdidier (University of Montreal and Observatoire de Strasbourg), Anthony Moffat (Universitie de Montreal), Gilles Joncas (Universite Laval), Agnes Acker (Observatoire de Strasbourg), and NASA

Ruhusa
(Kutumia faili tena)

This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

Historia ya faili

Bonyeza tarehe/saa kuona faili kama ilivyoonekana wakati huo.

	Tarehe/Saa	Vipimo	Mtumiaji	Maelezo
sasa hivi	10:05, 1 Februari 2010	611 × 641 (606 KB)	Tryphon	Original size, from http://hubblesite.org/newscenter/archive/releases/1998/38/image/a/.
	12:36, 18 Oktoba 2008	1,122 × 1,179 (349 KB)	Henrykus	{{Information \|Description= HST image of Wolf-Rayet star WR 124 surrounded by M1-67 nebula. \|Source= http://rst.gsfc.nasa.gov/Sect20/A6.html description from http://heasarc.gsfc.nasa.gov/docs/objects/heapow/archive/transients/march03_grbs.html \|Date= \|Au
	14:08, 27 Agosti 2005	360 × 378 (70 KB)	Joonasl	HST image of a Wolf-Rayet star {{PD-USGov-NASA}} Category:astronomy