What is the scientific term describing the rapid variations in a star's light intensity and position?

Answer

Astronomical scintillation

Astronomical scintillation is the scientific designation for the shimmering or flickering effect observed when starlight passes through the turbulent layers of air in the Earth's atmosphere.

What is the scientific term describing the rapid variations in a star's light intensity and position?

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What Does It Mean When A Star Is Flickering? - Physics Frontier

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