A night sky is seen over a lake. The sky contains numerous stars including the Big Dipper asterism. Prominent in the sky is a comet with a long tail. Both the Big Dipper and the comet are seen reflected in the still water of the lake. Please see the explanation for more detailed information.
夜空笼罩着一片湖面。天空中繁星点点，包括北斗七星。一颗拖着长彗尾的彗星在夜空中格外显眼。北斗七星和彗星的倒影映照在平静的湖面上。有关更多详细信息，请参阅说明。
2023年12月10日 Big Dipper over Pyramid Mountain Image Credit & Copyright: Steve Cullen Explanation: When did you first learn to identify this group of stars? Although they are familiar to many people around the world, different cultures have associated this asterism with different icons and folklo
2023年2月7日 A Comet and Two Dippers Image Credit & Copyright: Petr Horalek / Institute of Physics in Opava Explanation: Can you still see the comet? Yes. Even as C/2022 E3 (ZTF) fades, there is still time to see it if you know where and when to look. Geometrically, Comet ZTF has passed its closes
2023年1月7日 Space Stations in Low Earth Orbit Image Credit & Copyright: Zarcos Palma Explanation: On January 3, two space stations already illuminated by sunlight in low Earth orbit crossed this dark predawn sky. Moving west to east (left to right) across the composited timelapse image China̵
2021年7月31日 Remembering NEOWISE Image Credit & Copyright: Petr Horalek / Institute of Physics in Opava Explanation: It was just last July. If you could see the stars of the Big Dipper, you could find Comet NEOWISE in your evening sky. After sunset denizens of the north could look for the naked-e
2021年01月13日 Arches Across an Arctic Sky Image Credit & Copyright: Giulio Cobianchi Explanation: What are these two giant arches across the sky? Perhaps the more familiar one, on the left, is the central band of our Milky Way Galaxy. This grand disk of stars and nebulas here appears to encircle
