四月天空的金星和昴宿星团

2020 April 2

Venus and the Pleiades in April
Digital Illustration Credit & Copyright: Fred Espenak (Bifrost Astronomical Observatory)

Explanation: Venus is currently the brilliant evening star. Shared around world, in tonight’s sky Venus will begin to wander across the face of the lovely Pleiades star cluster. This digital sky map illustrates the path of the inner planet as the beautiful conjunction evolves, showing its position on the sky over the next few days. The field of view shown is appropriate for binocular equipped skygazers but the star cluster and planet are easily seen with the naked-eye. As viewed from our fair planet, Venus passed in front of the stars of the Seven Sisters 8 years ago, and will again 8 years hence. In fact, orbiting the Sun 13 Venus years are almost equal to 8 years on planet Earth. So we can expect our sister planet to visit nearly the same place in our sky every 8 years.

Tomorrow’s picture: pixels in space

四月天空的金星和昴宿星团
图标提供与版权: Fred Espenak (Bifrost Astronomical Observatory)

说明:目前金星是地球天空最明亮的“黄昏星”。而从今晚起，世界各地都可见到金星开始横过昴宿星团的前方。上面这幅数字星图，呈现在接下来数天的近合事件里，金星在天空的位置。图标所显示的视野，很适合用双筒望远镜观星者使用，不过这个星团和金星都是肉眼轻易可见的天体。从地球看出去，金星曾在8年前通过昴宿星团的前方，而8年后，同样的景观也会再现。这是因为绕太阳公转的13个金星年，几乎等同于8个地球年。所以，我们会看到金星这颗地球的姐妹行星，每8年都会再访同一片的地球天空。

明日的图片: pixels in space