2025年2月8日
A Conjunction of Crescents
Image Credit & Copyright: Aldo S. Kleiman
Explanation: A waxing crescent Moon and a waning crescent Venus are found at opposite corners of this twilight telephoto field of view. The close conjunction of the two brightest celestial beacons in planet Earth’s western evening sky was captured on February 1 from Rosario, Argentina. On that date, the slender crescent Moon was about 3 days old. But the Moon’s visible sunlit crescent will grow to a bright Full Moon by February 14. Like the Moon, Venus cycles through phases as it orbits the Sun. And while its visible sunlit crescent narrows, the inner planet’s apparent size increases as it gets closer to Earth. In a Valentine from the Solar System, Venus, named for the Roman goddess of Love, will also reach its peak brightness in planet Earth’s evening skies around February 14.
Tomorrow’s picture: southern skyscape
蛾眉天体的近合
影像提供与版权: Aldo S. Kleiman
说明: 在这片暮光时分的望远镜头视野里，渐盈的上蛾眉月与渐亏的金星对角而立。这幅记录二颗地球西方夜空最明亮天体近合的影像，是在2月1日摄于阿根廷的罗萨里奥市。在拍照的那天，纤细的蛾眉月约为三日龄，但它的日曜区将会增长，并在2月14日成为满月。类似月亮，绕太阳公转的金星也有位相变化。当金星的日曜蛾眉区缩减时，这颗内行星的视大小也会随着往地球靠近而增长。作为来自太阳系的西洋情人节赞礼、以罗马爱神维纳斯为名的金星，在地球夜空中的最大亮度将出现2月14日前后。
明日的图片: southern skyscape
