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reticle


'reticle' can also refer to...

 

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Fine lines or webs in the focal plane of an eyepiece, used for centring objects when guiding or for making angular measurements; also known as a graticule. The word implies a net or grid, but in practice a reticle may be a simple cross-wire or a series of concentric circles. The lines or the field of view are often illuminated.

Subjects: Astronomy and Astrophysics.


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