Credit & Copyright: Gary Stevens
Explanation:
Double, double toil and trouble;
Fire burn, and cauldron bubble -- maybe
Macbeth should have consulted the Witch Head Nebula.
This suggestively shaped
reflection nebula
is associated with the
bright star Rigel in the
constellation Orion.
More formally known as
IC 2118,
the Witch Head Nebula glows primarily by light reflected from
Rigel, located just outside the top right corner of the
above image.
Fine dust
in the nebula reflects the light.
The blue color is caused not only by Rigel's blue
color but because the
dust grains reflect blue light more efficiently than red.
The same
physical process causes
Earth's daytime sky to appear blue,
although the scatterers in
Earth's atmosphere are molecules of
nitrogen and
oxygen.
The nebula lies about 1000 light-years away.
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:
отражательные туманности - reflection nebula - IC 2118 - Witch Head Nebula - туманность Голова Ведьмы
Публикации со словами: отражательные туманности - reflection nebula - IC 2118 - Witch Head Nebula - туманность Голова Ведьмы | |
См. также:
Все публикации на ту же тему >> | |
