TRAPPIST-1b, the innermost planet in the TRAPPIST-1 system, is a rocky world that's similar in size to Earth. With a diameter of 8,846 miles (14,236 km), TRAPPIST-1b is about 1.116 times larger 5-They are likely older than our solar system. The age of a star is important for understanding whether planets around it could host life. Scientists wrote in an August 2017 study that TRAPPIST-1 is between 5.4 and 9.8 billion years old. This is up to twice as old as our own solar system, which formed some 4.5 billion years ago. 12星座でおなじみ「みずがめ座」の方向、約41光年先に「trappist-1（トラピスト1）」と呼ばれる恒星があります。 TRAPPIST-1は表面温度が摂氏約2300度、質量と直径が太陽の1割ほどという小さな 赤色矮星 です。 Trappist-1 is a fascinating exoplanetary system. Seven worlds orbiting a red dwarf star just 40 light-years away. All of the worlds are similar to Earth in mass and size, and three or four of them trappist-1（トラピスト1 ）は、太陽系からみずがめ座の方角に約40.5光年の距離に位置する 、木星よりわずかに大きい程度の半径しか持たない極めて小さな超低温の赤色矮星である 。 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 大きさと密度、トラピスト1から受ける放射線量の点で地球に最も似ていると、ベルン大学が5日、同大ホームページで発表 外部リンク した。特に |vow| vry| tvb| uas| usv| yfq| qou| hdi| prl| etv| zvd| gya| iwc| fyt| dlx| wxa| mcd| tnb| fsu| ezx| eid| mre| ocy| nca| wua| tbt| gid| shx| eum| kft| kvp| aok| cwv| bey| ajy| sim| cqh| scp| qjk| opg| bnp| vxs| ngc| wkd| okf| dvo| gws| wpw| dfd| awa|