If you hovered just outside the event horizon, at the photon sphere, in any direction you'd just see… yourself!
如果你在事界外徘徊，在光子球层从任何方向望去，你只能看到......你自己！
| 单词 | Photon sphere |
| 释义 |
Photon sphere
原声例句
Kurzgesagt 科普动画 If you hovered just outside the event horizon, at the photon sphere, in any direction you'd just see… yourself! 如果你在事界外徘徊，在光子球层从任何方向望去，你只能看到......你自己！
英语百科
Photon sphere
A photon sphere is a spherical region of space where gravity is strong enough that photons are forced to travel in orbits. The radius of the photon sphere, which is also the lower bound for any stable orbit, is: (where r is the radius, in meters, G is the gravitational constant, M is the mass in kg, and c is the speed of light in vacuum) which is one and one-half times the Schwarzschild radius. |
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