SOATI ASTRONOMI

SOATI ASTRONOMI, soatest khele daqiqkor, ki baroi mushohidahoi astronomi va hifzi vaqt istifoda meshavad. Soathoi raqqosakdori makhsus (sahvashon dar yak shaboruz to 5 * 10 ^-4 son) va soathoi kvarsi (soathoi atomii sahvashon dar yak shaboruz to 5*10 ^-17 son) az qabili soathoi astronomiand. Soti astronomii atomi solhoi 60-umi asri 20 baroi tartib dodani sistemai navi hisobi vaqt imkoniyat dod (nigared Soniya).