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increases with the fourth power of temperature, causing even a small loss of heat to produce a large luminosity contrast.) In addition to the visible appearance, which can be explained by
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The rising part of each granule is located in the center, where the plasma is hotter. The outer edges of the granules are darker due to cooler descending plasma. (The terms
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A typical granule has a diameter on the order of 1,500 kilometres (930 mi) and lasts 8 to 20 minutes before dissipating. At any one time, the
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measurements of the light from individual granules provides evidence for the
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are strictly by comparison to the brighter, hotter plasma. According to the
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High-resolution image of the Sun's surface taken by the
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Bahng, J. & Schwarzschild, M. (September 1961).
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247:. Johns Hopkins University Press. p. 2.
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245:Sunquakes: Probing the Interior of the Sun
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120:Learn how and when to remove this message
27:Convection cell in the Sun's photosphere
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58:adding citations to reliable sources
884:. You can help Knowledge (XXG) by
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138:Daniel K. Inouye Solar Telescope
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45:needs additional citations for
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827:List of heliophysics missions
876:This article related to the
832:Category:Missions to the Sun
278:"Lifetime of Solar Granules"
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808:G-type main-sequence star
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283:The Astrophysical Journal
671:In mythology and culture
329:Granules (solar physics)
243:Zirker, Jack B. (2003).
215:nature of the granules.
538:Supra-arcade downflows
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518:Coronal mass ejection
168:. They are caused by
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782:Standard solar model
752:Solar radio emission
570:List of solar cycles
331:at Wikimedia Commons
197:Stefan–Boltzmann law
54:improve this article
602:Magnetic switchback
296:1961ApJ...134..312B
792:Sunlight radiation
387:Internal structure
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635:Termination shock
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43:This article
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886:expanding it
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757:Solar System
727:Solar energy
722:Solar dynamo
683:Heliophysics
513:Coronal loop
508:Coronal hole
485:Moreton wave
467:Chromosphere
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52:Please help
47:verification
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815:Exploration
693:Solar deity
640:Heliosheath
622:Heliosphere
592:Wolf number
565:Solar cycle
429:Photosphere
182:granulation
166:photosphere
150:observation
925:Categories
767:Solar time
688:In culture
645:Heliopause
597:Solar wind
528:Prominence
420:Atmosphere
405:Tachocline
230:References
213:convective
201:luminosity
110:March 2014
80:newspapers
941:Sun stubs
650:Bow shock
557:Variation
523:Nanoflare
263:919928822
850:Category
170:currents
154:granules
140:(DKIST).
666:Eclipse
659:Related
480:Spicule
452:Sunspot
447:Faculae
442:Granule
366:The Sun
292:Bibcode
290:: 312.
160:in the
94:scholar
495:Corona
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193:cooler
189:darker
174:plasma
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101:JSTOR
87:books
882:stub
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377:List
259:OCLC
249:ISBN
191:and
156:are
148:and
73:news
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