星系

天文·每日一图

NGC 3314:当星系重叠时

2021年11月17日 NGC 3314: When Galaxies Overlap Image Credit: NASA, ESA, Hubble; Processing & Copyright: William Ostling (The Astronomy Enthusiast) Explanation: Why doesn’t the nearby galaxy create a gravitational lensing effect on the background galaxy? It does, but since both galaxies are s […]

天文·每日一图

奎宿九之魂

2021年10月28日 Mirach’s Ghost Image Credit & Copyright: John Chumack Explanation: As far as ghosts go, Mirach’s Ghost isn’t really that scary. Mirach’s Ghost is just a faint, fuzzy galaxy, well known to astronomers, that happens to be seen nearly along the line-of-sight to

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钱德拉发现另一个星系中可能存在行星的证据

有迹象表明,这可能是第一次被探测到一颗行星在银河系外穿过恒星的迹象 这可能是第一次探测到行星在银河系外穿过恒星的迹象。这个有趣的结果,利用NASA的钱德拉X射线天文台,打开了一个新的窗口,可以在比以往更远的距离搜索系外行星。 这颗可能的候选系外行星位于螺旋星系梅西耶51(M51)中,也因其独特的外形而被称为漩涡星系。 系外行星被定义为太阳系之外的行星。到目前为止,天文学家已经发现了银河系中所有其他已知的系外行星和系外行星候选行星,几乎所有这些行星都距离地球不到3000光年。M51中的一颗系外行星距离我们大约2800万光年,这意味着它的距离是银河系中的行星的数千倍。 系外行星被定义为太阳系之外的

NASA·每日一图

原力在一颗新生的恒星中觉醒

This celestial lightsaber does not lie in a galaxy far, far away, but rather inside our home galaxy, the Milky Way. It’s inside a turbulent birthing ground for new stars known as the Orion B molecular cloud complex, located 1,350 light-years away. 这把天体光剑并不在遥远的星系中,而是在我们的家园银河系中。它位于一个名为猎户座B分子云复合体

NASA·每日一图

哈勃拍摄的“熔环”星系照片引发新的研究

The Hubble Space Telescope’s glamour shots of the universe nearly always have a discovery behind them. 哈勃太空望远镜拍摄的迷人的宇宙照片背后几乎都有一个发现。 In this image, a remote galaxy is greatly magnified and distorted by the effects of gravitationally warped space. After its public release, astronomers used the p

NASA·每日一图

哈勃望远镜探测到危险的舞蹈

This NASA/ESA Hubble Space Telescope image features two interacting galaxies that are so intertwined, they have a collective name – Arp 91. Their delicate galactic dance takes place more than 100 million light-years from Earth. The two galaxies comprising Arp 91 have their own names: the lower galax

天文·每日一图

哈勃极深场的光与声

2021年8月2日 The Hubble Ultra Deep Field in Light and Sound Image Credit: NASA, ESA, Hubble; Sonification: G. Salvesen (UCSB); Data: M. Rafelski et al. Explanation: Have you heard about the Hubble Ultra-Deep Field? Either way, you’ve likely not heard about it like this — please run your cur

NASA·每日一图

哈勃望远镜瞥见一对星系二人组

Two enormous galaxies capture your attention in this spectacular image taken with the NASA/ESA Hubble Space Telescope using the Wide Field Camera 3 (WFC3). The galaxy on the left is a lenticular galaxy, named 2MASX J03193743+4137580. The side-on spiral galaxy on the right is more simply named UGC 26

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