(Q2361910)

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photon sphere

spherical area or region of space where gravity is strong enough that massless particles are forced to travel in orbits

photon circle

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r={\frac {3GM}{c^{2}}}={\frac {3}{2}}r_{\mathrm {S} }

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WikiProject Mathematics

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28 October 2013

Microsoft Academic ID

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26 January 2022

https://docs.openalex.org/download-snapshot/snapshot-data-format

Unified Astronomy Thesaurus ID

1236

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(Q2361910)

photon sphere

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