2025年9月20日
Gibbous vs Crescent
Image Credit & Copyright: Luca Bartek
Explanation: Early risers around planet Earth have enjoyed a shining crescent Moon near brilliant Venus, close to the eastern horizon in recent morning twilight skies. And yesterday, on September 19, skygazers watching from some locations in Earth’s northern hemisphere were also able to witness Venus, in the inner planet’s waxing gibbous phase, pass behind the Moon’s waning crescent. In fact, this telescopic snapshot was taken moments before that occultation of gibbous Venus by the crescent Moon began. The close-up view of the beautiful celestial alignment records Venus approaching part of the Moon’s sunlit edge in clear daytime skies from the Swiss Alps. Tomorrow, the Sun will pass behind a New Moon. But to witness that partial solar eclipse on September 21, skygazers will need to watch from locations in planet Earth’s southern hemisphere.
Tomorrow’s picture: equinox sunset
盈凸月与新月的比较
影像提供与版权: Luca Bartek
说明: 最近几天，地球上早起的人可以在暮色笼罩的天空中欣赏到一轮耀眼的新月，它位于明亮的金星附近，靠近东方地平线。昨天，也就是9月19日，地球北半球一些地方的天文爱好者还能看到内行星金星在处于盈凸相位，并从月亮的残月后方掠过。事实上，这张望远镜拍摄的快照，是在金星被新月掩星开始前不久拍摄的。这幅美丽的天体排列特写，记录了金星在白天清晰的瑞士阿尔卑斯山天空中，接近月亮的阳光照射边缘。明天，太阳将从新月后方掠过。但要想在9月21日目睹日偏食，天文爱好者需要从地球南半球的某些地点观测。
明日的图片: equinox sunset
