Explanation

Prayer offered during a lunar eclipse is Namaz e Khusoof

and 

Namaz-e-Kasoof (نماز کسوف) is offered at the time of the solar eclipse. 

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1. The lunar eclipse takes place when The shadow of the earth falls on the moon
2. There are three types of lunar eclipses:

a total lunar eclipse,

a penumbral lunar eclipse

and a partial lunar eclipse.

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ND4-12-2022