Parsek

Parsek (az ikhtisori kalimahoi parallaks — ikhtilofi manzar va sekunda—soniya), vohidi astrono­mii masofa. Parsek masofaest, ki az on nimdiametri madori Zamin tadti kunji 1″ namoyon ast yo masofaest to sitora, ki parallaksi on ba 1″ ba­robar meboshad. Ishoratadp ps yo pk. 1 ps = 3.260 soli rushnoy = 3,0857X KhYu^,v m.