In this image, the NASA/ESA Hubble Space Telescope captures a side-on view of NGC 3568, a barred spiral galaxy roughly 57 million light-years from the Milky Way in the constellation Centaurus. In 2014 the light from a supernova explosion in NGC 3568 reached Earth – a sudden flare of light caused by the titanic explosion accompanying the death of a massive star. While most astronomical discoveries are the work of teams of professional astronomers, this supernova was discovered by amateur astronomers who are part of the Backyard Observatory Supernova Search in New Zealand. Dedicated amateur astronomers often make intriguing discoveries – particularly of fleeting astronomical phenomena such as supernovae and comets.

在这张图片中,NASA/ESA哈勃太空望远镜拍摄到了NGC 3568的侧视图,这是一个位于半人马座的棒旋星系,距离银河系约5700万光年。2014年,NGC 3568中的一颗超新星爆炸发出的光线到达了地球–这是一颗大质量恒星死亡时发生的巨大爆炸引起的突然闪光。虽然大多数天文发现是专业天文学家团队的工作,但这颗超新星是由业余天文学家发现,他们是新西兰后院天文台超新星搜索的一部分。敬业的业余天文学家经常会有有趣的发现——尤其是超新星和彗星等转瞬即逝的天文现象。

This Hubble observation comes from a wealth of data gathered to pave the way for future science with the upcoming NASA/ESA/CSA James Webb Space Telescope. By combining ground-based observations with data from Hubble’s Advanced Camera for Surveys and Wide Field Camera 3, astronomers have built a treasure trove of data on the connections between young stars and the clouds of cold gas in which they form. One of Webb’s key science goals is to explore the life cycle of stars – particularly how and where stars are born. Since Webb observes at infrared wavelengths, it will be able to peer through the clouds of gas and dust in stellar nurseries and observe the fledgling stars within. Webb’s superb sensitivity will even allow astronomers to directly investigate faint protostellar cores – the earliest stages of star birth.


Image Credit: ESA/Hubble & NASA, M. Sun
Text Credit: European Space Agency (ESA)

图片来源:ESA/Hubble & NASA, M. Sun

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