The Photon Sphere is a region of space around a black hole where gravity is so intense th… — @holvek

Video insights

@holvek's TikTok video "The Photon Sphere is a region of space around a black hole where gravity is so intense that light particles (photons) are forced to travel in circular orbits. Located just outside the event horizon, its radius for a non-rotating black hole is exactly 1.5 times the Schwarzschild radius. In this unique zone, light behaves like a satellite trapped on a permanent orbit around a massive cosmic body. Orbits within this sphere are completely unstable. Any minor disturbance causes the photons to either plunge past the event horizon into the black hole or escape out into deep space. The photons that manage to slip away from this boundary toward Earth are precisely what form the bright ring of light around the black hole's "shadow," which astronomers have successfully captured in real images. This region creates a mind-bending optical illusion: if an observer could stand on the photon sphere and shine a flashlight horizontally, the beam of light would loop around the black hole and return from behind. As a result, the observer would see the back of their own head. However, for rotating black holes, this perfect sphere distorts into a complex photon region due to the twisting of spacetime itself. #blackhole #physics #Astronomy #astro" has 276,802 views, 44,456 likes, 253 comments, 2,568 shares in the public metrics captured by this index. That is an engagement rate of 17.08% (likes, comments and shares over views). It was posted 11 days ago and runs 11 seconds. It has been saved 9,334 times.

Frequently asked questions

How many views does this TikTok video have?

The capture indexed here reports 276,802 views, 44,456 likes and 253 comments.

Who posted this TikTok video?

It was posted by @holvek, who is linked from this page.

What is this TikTok video's engagement rate?

Across the captured metrics the engagement rate is 17.08% (likes + comments + shares over views).

When was this TikTok video posted?

It was posted on 2026-10-19, 11 days ago.

What hashtags are used in this video?

The capture links 4 hashtags, starting with #astro.

How long is this TikTok video?

The captured clip runs 11 seconds.