0122名無しさん@1周年
2017/10/29(日) 08:17:18.74ID:2P6q2T/l0https://ja.wikipedia.org/wiki/A/2017_U1
https://www.nasa.gov/sites/default/files/styles/full_width/public/thumbnails/image/comet20171025-16.gif?itok=e8qn2Laa
https://www.nasa.gov/feature/jpl/small-asteroid-or-comet-visits-from-beyond-the-solar-system