2025年12月19日
Long Shadows of the Montes Caucasus
Image Credit & Copyright: Guy Bardon
Explanation: When the Moon is at its first quarter phase, the Sun rises along the Montes Caucasus as seen from the lunar surface. The lunar mountain range casts the magnificent, spire-like shadows in this telescopic view from planet Earth, looking along the lunar terminator or the boundary between lunar night and day. Named for Earth’s own Caucasus Mountains, the rugged lunar Montes Caucasus peaks, up to 6 kilometers high, are located between the smooth Mare Imbrium to the west and Mare Serenitatis to the east. Still mostly in shadow in this first quarter lunarscape, at the left (west) impact craters reflect the light of the rising Sun along their outer, eastern crater walls.
Tomorrow’s picture: the Sun’s tattoo
高加索山脉的悠长阴影
影像提供与版权: Guy Bardon
说明: 当月球处于上弦月阶段时，从月球表面可以看到，太阳沿着高加索山脉升起。从地球上用望远镜观察，沿着月球晨昏线（即月球昼夜分界线）望去，可以看到月球山脉投射出如尖塔般壮丽的阴影。高加索山脉因其与地球上的高加索山脉同名而得名，崎岖的山峰高达6公里，位于西侧平坦的雨海和东侧的静海之间。这些以地球上的高加索山脉命名的崎岖月球高加索山脉，其山峰高达6公里，位于西侧的雨海（Mare Imbrium）与东侧的澄海（Mare Serenitatis）之间。 在这张上弦月的月面景观中，大部分区域仍处于阴影之中，左侧（西侧）的撞击坑反射着冉冉升起的太阳的光芒，沿着其东侧的坑壁闪耀。
明日的图片: the Sun’s tattoo
