资讯

New green-tailed comet discovered: When, where, and how to see it in April and May 2025
A newly discovered comet, C/2025 F2 (SWAN), is now visible in the eastern sky before dawn. Officially designated on April 8, ...
Comet SWAN puts on a must-see sky show as it becomes visible with binoculars without telescope
Minor Planet Center officially designated comet SWAN25F as C/2025 F2 (SWAN) on April 8. SWAN is an instrument particularly designed to study the Sun ...