Summary Data for 2019 September’s Comets Summary Data for 2019 September’s Comets. 2019년 9월의 주요한 혜성들. http://cometsky.com/astronews/comet_chasing_in_september_2019_bsyeom.jpg 염범석. Bum-Suk Yeom. Credit: Bum-Suk Yeom, http://cometchasing.skyhound.com. 2019. 9. 15. 이전 1 다음