地球上空的詹姆斯·韦伯太空望远镜

2021年12月26日

James Webb Space Telescope over Earth
Image Credit: Arianespace, ESA, NASA, CSA, CNES

Explanation: There’s a big new telescope in space. This one, the James Webb Space Telescope (JWST), not only has a mirror over five times larger than Hubble’s in area, but can see better in infrared light. The featured picture shows JWST high above the Earth just after being released by the upper stage of an Ariane V rocket, launched yesterday from French Guiana. Over the next month, JWST will move out near the Sun-Earth L2 point where it will co-orbit the Sun with the Earth. During this time and for the next five months, JWST will unravel its segmented mirror and an array of sophisticated scientific instruments — and test them. If all goes well, JWST will start examining galaxies across the universe and planets orbiting stars across our Milky Way Galaxy in the summer of 2022.

APOD Gallery: Webb Space Telescope Launch

Tomorrow’s picture: comet webb

地球上空的詹姆斯·韦伯太空望远镜
影像提供: Arianespace, ESA, NASA, CSA, CNES

说明: 太空中多了一部全新的大望远镜。这部詹姆斯·韦伯太空望远镜 (JWST) ，不仅镜子的面积比哈勃望远镜要大上5倍，而且红外光的视力也更出色。这幅呈现JWST高悬在地球上空的主题影像，摄于昨天阿丽亚娜五型火箭从法属圭亚那发射，其上级火箭释放这部望远镜之后。在下个月之中，韦伯望远镜将迁移到太阳-地球系统的L2点，与地球同步绕行太阳。在下个月及其后的5个月里，JWST将开展它的拼合镜面及各种先进的科学仪器，同时并进行测试。如果一切顺利，JWST将在2022年的夏天，开始探索宇宙各处的星系及银河系恒星周围的行星。

APOD画廊: 韦伯太空望远镜发射

明日的图片: comet webb