Thahir, Musaifa; Kaleel, M.I.M
(Faculty of Arts & Culture South Eastern University of Sri Lanka Oluvil # 32360 Sri Lanka, 2014-12)
In a long period of time, the summary of observations collected from a particular
spot which are detected in the sky. It is to be noted the position of the sky for a
least period of 30 or 35 years are collected and ...