Credit & Copyright: TRACE Project,
NASA
Explanation:
It was a quiet day on the
Sun.
The above image shows, however, that even during off days the
Sun's surface is a busy place.
Shown in ultraviolet light, the relatively
cool dark regions have temperatures of thousands of degrees
Celsius.
Large sunspot group AR 9169 from the last
solar cycle is
visible as the bright area near the horizon.
The bright glowing gas
flowing around the
sunspots
has a temperature of over one million degrees
Celsius.
The reason for the high temperatures is
unknown
but thought to be related to the rapidly changing
magnetic field loops that channel solar plasma.
Large
sunspot group AR 9169 moved across the
Sun during 2000 September and decayed in a few weeks.
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Публикации с ключевыми словами:
Sun - sunspot - ultraviolet - Солнце - Солнечные пятна - Ультрафиолетовое излучение
Публикации со словами: Sun - sunspot - ultraviolet - Солнце - Солнечные пятна - Ультрафиолетовое излучение | |
См. также:
Все публикации на ту же тему >> |