Credit & Copyright: STSci Digitized Sky Survey, Anglo-Australian Observatory
Explanation:
The closest star system to the Sun is the
Alpha Centauri system. Of the
three stars in the system, the dimmest -- called Proxima Centauri -- is
actually the
nearest star. The bright stars Alpha Centauri A
and B form a close binary as they are separated by only 23 times the
Earth-
Sun
distance - slightly greater than the distance between
Uranus and the
Sun.
In the above picture, the brightness of the stars overwhelm
the photograph causing an illusion of great size, even though the stars are
really just small points of light. The Alpha Centauri system is not visible
in much of the northern hemisphere.
Alpha Centauri A, also known as
Rigil Kentaurus, is the brightest star in the
constellation of
Centaurus and is the
fourth brightest
star in the night sky.
Sirius is the brightest
even thought it is more than twice as far away. By an exciting
coincidence, Alpha Centauri A is the same type of star as our Sun,
causing many to speculate that it might contain planets that harbor life.
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:
star system - кратные системы - Альфа Центавра
Публикации со словами: star system - кратные системы - Альфа Центавра | |
См. также:
Все публикации на ту же тему >> | |
