保护地球, 探索宇宙, 发现文明
2022年10月8日 Two Comets in Southern Skies Image Credit & Copyright: Jose J. Chambo (Cometografia) Explanation: Heading for its closest approach to the Sun or perihelion on December 20, comet C/2017 K2 (PanSTARRS) remains a sight for telescopic observers as it sweeps through planet Earth’s southern hemisphere skies. First time visitor from the remote...
2022年8月20日 Stardust and Comet Tails Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) Explanation: Heading for its closest approach to the Sun, or perihelion, on December 19 comet C/2017 K2 (PanSTARRS) remains a sight for telescopic observers as it sweeps through planet Earth’s skies in the constellation Scorpius. The comet currently...
2022年6月30日 Comet C/2017 K2 (PanSTARRS) Image Credit & Copyright: Jose J. Chambo (Cometografia) Explanation: Imaged on June 20 2022, comet C/2017 K2 (PanSTARRS) shares this wide telescopic field of view with open star cluster IC 4665 and bright star Beta Ophiuchi, near a starry edge of the Milky Way. On its maiden voyage to the inner Solar System from th...