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系外行星/类地行星新发现跟踪:重要成果!70%恒星有行星,其中1/5有类地行星

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DF21 发表于 2016-9-1 19:47 | 显示全部楼层
比邻星行星怀疑了好多年了,终于被证实,不容易
 楼主| hkhtg090201 发表于 2017-2-23 09:30 | 显示全部楼层
斯皮策望远镜发现7颗地球大小的行星,围绕单一恒星。ultra-cool dwarf star called TRAPPIST-1,40光年外,其中3颗位于宜居带。

http://www.parabolicarc.com/2017 ... lanets-single-star/

At about 40 light-years (235 trillion miles) from Earth, the system of planets is relatively close to us, in the constellation Aquarius. Because they are located outside of our solar system, these planets are scientifically known as exoplanets.

This exoplanet system is called TRAPPIST-1, named for The Transiting Planets and Planetesimals Small Telescope (TRAPPIST) in Chile. In May 2016, researchers using TRAPPIST announced they had discovered three planets in the system. Assisted by several ground-based telescopes, including the European Southern Observatory’s Very Large Telescope, Spitzer confirmed the existence of two of these planets and discovered five additional ones, increasing the number of known planets in the system to seven.







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 楼主| hkhtg090201 发表于 2017-2-23 09:51 | 显示全部楼层
hkhtg090201 发表于 2017-2-23 09:30
斯皮策望远镜发现7颗地球大小的行星,围绕单一恒星。ultra-cool dwarf star called TRAPPIST-1,40光年外, ...

详细中文:
http://tech.sina.com.cn/d/s/2017-02-23/doc-ifyavvsk2750927.shtml
mum 发表于 2017-2-25 19:49 | 显示全部楼层

n年之后...

n年之后的一天...




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