photon spheres

A form of photon sphere — Of a black hole, a spherical limit around a black hole at such distance that any photon meeting it tangentially is constrained to travel in a circular orbit; (more loosely) the region between this limit and the event horizon.

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Meanings

noun
  1. pluralplural of photon sphere
Cite this entry
APA

photon spheres. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/photon%20spheres

MLA

“photon spheres.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photon%20spheres. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “photon spheres,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/photon%20spheres.

Source: photon spheres on Wiktionary, CC BY-SA 4.0.