Explanation: Why would a small part of the Sun appear slightly dark? Visible above is a close-up picture of a sunspot, a depression on the Sun's face that is slightly cooler and less luminous than the rest of the Sun. The Sun's complex magnetic field creates this cool region by inhibiting hot material from entering the spot. Sunspots can be larger than the Earth and typically last for only a few days. This high-resolution picture also shows clearly that the Sun's face is a bubbling sea of separate cells of hot gas. These cells are known as granules. A solar granule is about 1000 kilometers across and lasts about 10 minutes. After that, many granules end up exploding.

<<  Noyabr'  >> Pn Vt Sr Cht Pt Sb Vs   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30         1995   1996   1997 1998   1999   2000 2001   2002   2003 2004   2005   2006 2007   2008   2009 2010   2011   2012 2013   2014   2015 2016   2017   2018 2019   2020   2021 2022   2023   2024

Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr'

Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: sunspot - Sun - magnetic field - magnitnoe pole Solnca - Solnechnye pyatna - Solnce - granulyaciya, solnechnaya Publikacii so slovami: sunspot - Sun - magnetic field - magnitnoe pole Solnca - Solnechnye pyatna - Solnce - granulyaciya, solnechnaya
Sm. takzhe: Treugol'nyi protuberanec nad Solncem Eruptivnyi protuberanec na Solnce Gaiya: vot poyavlyaetsya Solnce Solnechnyi tanec Protuberancy i volokna na aktivnom Solnce Vozvrashenie znamenitoi aktivnoi oblasti i vspyshka klassa X na Solnce Vybros solnechnogo volokna Vse publikacii na tu zhe temu >>