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美国国家航空航天局-我们看到你了，宝贝星!自从现代天文观测开始以来，我们一直在研究发生的微妙变化
案例简介：我们看到你了，宝贝明星!自从现代天文观测开始以来，我们一直在研究恒星和行星的发源地发生的细微变化。宇宙时间尺度可能很长，但是这张 @ NASAHubble照片中的天体在相对较短的时间内发生了变化。位于扇形物体右边缘的亮点是一颗年轻的恒星，绰号为 “PV Cep”。1952年拍摄的PV Cep照片显示出模糊的条纹，类似于彗星的尾巴，但是，当大约25年后获得新的恒星图像时，这种情况已经消失了。取而代之的是，这里看到的蓝色扇形星云出现了。25年是宇宙时间尺度上的一个非常短的时期!天文学家认为，这种神秘的条纹可能是暂时的现象-也许是巨大的恒星耀斑的残留物。PV Cep位于仙王座的北部星座，距离地球超过1600光年。信用: 欧空局/哈勃和美国宇航局。致谢: 阿列克谢·罗马辛 # 美国宇航局 # 哈勃望远镜 # 星星 # 天文学 # 太空 # 星星 # 哈勃
美国国家航空航天局-我们看到你了，宝贝星!自从现代天文观测开始以来，我们一直在研究发生的微妙变化
案例简介：We see you, baby star! 🤩 Since modern astronomical observations began, we've been studying the subtle changes that happen in the birthplaces of stars and planets. Cosmic timescales can be very long, however the celestial objects in this @NASAHubble photo have changed in a relatively short amount of time. The bright spot located at the right edge of the fan-shaped object is a young star nicknamed “PV Cep.” A photo of PV Cep taken in 1952 showed a nebulous streak, similar to a comet’s tail, but this had vanished by the time new images of the star were obtained some 25 years later. Instead, the blue fan-shaped nebula seen here had appeared. Twenty-five years is a very short period on cosmic timescales! Astronomers think the mysterious streak may have been a temporary phenomenon – perhaps the remnants of a massive stellar flare. PV Cep is located in the northern constellation of Cepheus at a distance of over 1600 light-years from Earth. Credit: ESA/Hubble & NASA. Acknowledgement: Alexey Romashin #NASA #HubbleTelescope #Stars #Astronomy #space #star #Hubble
NASA - We see you, baby star! 🤩 Since modern astronomical observations began, we've been studying the subtle changes that happe
案例简介：我们看到你了，宝贝明星!自从现代天文观测开始以来，我们一直在研究恒星和行星的发源地发生的细微变化。宇宙时间尺度可能很长，但是这张 @ NASAHubble照片中的天体在相对较短的时间内发生了变化。位于扇形物体右边缘的亮点是一颗年轻的恒星，绰号为 “PV Cep”。1952年拍摄的PV Cep照片显示出模糊的条纹，类似于彗星的尾巴，但是，当大约25年后获得新的恒星图像时，这种情况已经消失了。取而代之的是，这里看到的蓝色扇形星云出现了。25年是宇宙时间尺度上的一个非常短的时期!天文学家认为，这种神秘的条纹可能是暂时的现象-也许是巨大的恒星耀斑的残留物。PV Cep位于仙王座的北部星座，距离地球超过1600光年。信用: 欧空局/哈勃和美国宇航局。致谢: 阿列克谢·罗马辛 # 美国宇航局 # 哈勃望远镜 # 星星 # 天文学 # 太空 # 星星 # 哈勃
NASA - We see you, baby star! 🤩 Since modern astronomical observations began, we've been studying the subtle changes that happe
案例简介：We see you, baby star! 🤩 Since modern astronomical observations began, we've been studying the subtle changes that happen in the birthplaces of stars and planets. Cosmic timescales can be very long, however the celestial objects in this @NASAHubble photo have changed in a relatively short amount of time. The bright spot located at the right edge of the fan-shaped object is a young star nicknamed “PV Cep.” A photo of PV Cep taken in 1952 showed a nebulous streak, similar to a comet’s tail, but this had vanished by the time new images of the star were obtained some 25 years later. Instead, the blue fan-shaped nebula seen here had appeared. Twenty-five years is a very short period on cosmic timescales! Astronomers think the mysterious streak may have been a temporary phenomenon – perhaps the remnants of a massive stellar flare. PV Cep is located in the northern constellation of Cepheus at a distance of over 1600 light-years from Earth. Credit: ESA/Hubble & NASA. Acknowledgement: Alexey Romashin #NASA #HubbleTelescope #Stars #Astronomy #space #star #Hubble
美国国家航空航天局-我们看到你了，宝贝星!自从现代天文观测开始以来，我们一直在研究发生的微妙变化
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NASA - We see you, baby star! 🤩 Since modern astronomical observations began, we've been studying the subtle changes that happe
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