美国国家航空航天局NASA每日一图(天文)-2017年7月3日

2017 July 3

The Summer Triangle over the Great Wall
Image Credit & Copyright: Steed Yu & NightChina.net
Explanation: Have you ever seen the Summer Triangle? The bright stars Vega, Deneb, and Altair form a large triangle on the sky that can be seen rising in the northern spring during the morning, and rising in the northern fall during the evening. During summer months, the triangle can be found nearly overhead near midnight as three of the brightest stars on the sky. Featured here, along with the arch of the central band of our Milky Way Galaxy, the Summer Triangle asterism was captured this spring over the Great Wall of China. This part of the Great Wall, a World Culture Heritage Site, was built during the 6th century on the Yan Mountains. At the summit is Wangjinglou Tower from which, on a clear night, the lights of Beijing are visible in the distance.

长城上的夏日三角

版权:Steed&NightChina.net

解释:你有没有看过夏季三角?明亮的星星Vega、天津四和牛郎星在天空中形成了一个巨大的三角形,在北方的春天里可以看到在早晨升起,在夜晚的北方秋天升起。在夏天的几个月里,在天空中最明亮的三颗星星中,有三颗星星在午夜附近被发现。在这里,随着我们银河系的中央乐队的拱门,夏季三角asterism在今年春天在中国的长城上被捕获。长城的这一部分,是一个世界文化遗产遗址,建于公元6世纪的延安。在山顶上是Wangjinglou,在一个晴朗的夜晚,北京的灯光在远处清晰可见。

评论已关闭