Credit & Copyright: Christian vd Berge
(DSLR Astrophotograhy)
Explanation:
These three bright nebulae are often
featured in telescopic tours of the constellation
Sagittarius and the crowded starfields of
the central Milky Way.
In fact, 18th century cosmic tourist
Charles Messier
cataloged two of them;
M8, the large nebula left of center,
and colorful
M20 on the right.
The third, NGC 6559, is above M8,
separated from the larger nebula by a dark dust lane.
All three are stellar nurseries about
five thousand light-years or so distant.
The expansive M8, over a hundred light-years across,
is also known as the Lagoon Nebula.
M20's popular moniker is the Trifid.
Glowing hydrogen gas creates the dominant red color of the
emission nebulae, with contrasting blue hues, most striking in the
Trifid, due to dust reflected starlight.
The colorful skyscape
recorded with telescope and digital camera
also includes one of Messier's open star clusters,
M21,
just above the Trifid.
Astrophysicists:
Browse 1,000+ codes in the Astrophysics Source Code Library
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 |
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& Michigan Tech. U.
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Публикации с ключевыми словами:
Sagittarius - Lagoon Nebula - Туманность Лагуна - Трехраздельная туманность - пыль
Публикации со словами: Sagittarius - Lagoon Nebula - Туманность Лагуна - Трехраздельная туманность - пыль | |
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