Credit & Copyright: Harald Albrigtsen
Explanation:
Higher than the highest mountain lies the realm of the aurora.
Auroras rarely reach below 60 kilometers, and can range up to 1000 kilometers.
Aurora light results from energetic
electrons and
protons
striking atoms and molecules in the
Earth's atmosphere.
Somewhat uncommon, an
auroral
corona appears as a center point for a surrounding display and may occur when
an aurora develops directly overhead, or when
auroral rays are pointed nearly toward the observer.
This picturesque but brief green and purple
aurora exhibition
occurred last month high above
KvalЬya,
TromsЬ,
Norway.
The SessЬyfjorden
fjord runs through the foreground,
while numerous stars are visible far in the distance.
APOD Wall Calendar:
Land and Skyscapes
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 |
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:
aurora - corona - Norway - полярное сияние
Публикации со словами: aurora - corona - Norway - полярное сияние | |
См. также:
Все публикации на ту же тему >> |