Credit & Copyright: чorvarПur аrnason
Explanation:
If you see a sky like this -- photograph it.
A month ago in Iceland, an adventurous photographer (pictured) chanced across a
sky full of aurora and did just that.
In the foreground lies the stratovolcano
жrФfajЖkull.
In the background, among other sky delights, lies the constellation of
Orion, visible to the aurora's left.
Auroras
are sparked by
energetic particles from the
Sun impacting the
magnetic environment
around the Earth.
Resultant energetic particles such as
electrons and
protons
rain down near the Earth's poles and impact the air.
The impacted
air molecules obtain
excited electrons, and when electrons in
oxygen molecules fall back to their ground state,
they emit green light.
Auroras
are known to have many
shapes and
colors.
Click Hyperspace:
Random APOD Generator
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 - volcano - iceland - полярное сияние - Орион - вулкан
Публикации со словами: aurora - volcano - iceland - полярное сияние - Орион - вулкан | |
См. также:
Все публикации на ту же тему >> |