spurious disk

noun

: the small apparently circular disk of a star as seen in a telescope that limits the resolving power of the telescope and varies inversely with the diameter of the objective

called also diffraction disk

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Dictionary Entries Near spurious disk

Cite this Entry

“Spurious disk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spurious%20disk. Accessed 24 Nov. 2024.

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