围绕银河系中心黑洞运行的恒星S301的延时拍摄
(原标题: Time-Lapse of the Star S301 Orbiting the Black Hole in the Center of the Galaxy)
2026-08-21
浏览次数: 1483
在旋转的超大质量黑洞周围放大是什么感觉？这段特色视频是一段动画，展示了对围绕人马座a *运行的恒星S301 4年的延时观测。人马座a *是银河系中心一个质量为400万太阳质量的黑洞。S301是2023年由位于智利阿塔卡马沙漠的欧洲南方天文台的甚大望远镜干涉仪发现的。天文学家最近发现，S301绕黑洞一圈大约需要8.7年，速度达到25000公里/秒。它比以前探测到的任何其他恒星都更接近黑洞，距离与土星到太阳的距离相似。因为它离人马座A*很近，所以S301可以用来直接测量黑洞旋转的速度，并检验爱因斯坦的广义相对论。根据该理论，旋转的黑洞会拖拽自身周围的时空结构，影响附近物体的轨道。
查看原文解释
What does it feel like to zoom around a spinning supermassive black hole? The featured video is an animation showing a time-lapse of 4 years of observations of the star S301 orbiting Sagittarius A*, the 4-million-solar-mass black hole in the center of our Galaxy. S301 was discovered in 2023 with the Very Large Telescope Interferometer of the European Southern Observatory, located in the Atacama Desert in Chile. Astronomers recently found that S301 takes approximately 8.7 years to go around the black hole and reaches speeds of 25,000 km/s. It comes closer to the black hole than any other stars detected before, at a distance similar to that from Saturn to the Sun. Because it comes so close to Sagittarius A*, S301 could be used to directly measure how fast the black hole spins and test Einstein's theory of general relativity. According to the theory, a spinning black hole drags the fabric of spacetime around itself, affecting the orbits of close-by objects.