月掩金星

2022年6月2日

Lunar Occultation of Venus
Image Credit & Copyright: Quentin Gineys

Explanation: On May 27 Venus rose as the morning star, near the waning crescent Moon in a predawn sky already full of planets. It was close on the sky to the Moon’s crescent and a conjunction of the second an third brightest celestial beacons were enjoyed by skygazers around the world. But seen from locations along a track through southeast Asia and the Indian Ocean the Moon actually passed in front of Venus in a lunar occultation. In this animated gif the 75 percent illuminated disk of Venus approaches and just begins to disappear behind the sunlit southwestern lunar limb. The telescopic frames used to construct it were captured from Reunion Island in the Indian Ocean around 4:50am local time, with the Moon and Venus very close to the eastern horizon. At the time Venus was over 180 million kilometers from Reunion Island, compared to a lunar distance of a mere 400 thousand kilometers or so. About 50 minutes later Venus emerged from behind the Moon.

Tomorrow’s picture: pixels in space

月掩金星
影像提供与版权: Quentin Gineys

说明: 在5月27日行星群集的黎明前天空中，金星以晨星之姿升起，出现在残月附近。在天空中紧临的残月与金星，也为世界各地的观星者带来第二亮和第三亮天体近合的景观。而从一道穿过东南亚和印度洋的长条区看出去，月亮实际上通过金星前方（月掩金星）。在这部gif动画里，75%满相的金星之盘面，接近并即将消失在日曜的月盘西南临边后方。用以建构这部动画的望远镜影像定格，则是摄于印度洋留尼汪岛当地时间的凌晨4点50分左右，当时月球和金星非常靠近东方地平线。拍照之时，金星与留尼汪岛的距离超过1.8亿公里，而月亮的距离大约只有40万公里。约在50分钟之后，金星从月亮的后方复现。

明日的图片: pixels in space