ical ▁activities ▁that ▁A . ▁Ch ok ro ▁organ ised ▁over ▁the ▁past ▁thirty ▁years : ▁▁ 1 . ▁Hal ley ' s ▁Com et ▁Observ ation ▁in ▁ 1 9 8 5 – 8 6 , ▁▁ 2 . ▁Total ▁Sol ar ▁Eclipse ▁Observ ation ▁in ▁October ▁ 1 9 9 5 ▁▁ 3 . ▁Leon id ▁Sh ower ▁Observ ation ▁Program me ▁in ▁November ▁ 1 9 9 9 , ▁▁ 4 . ▁Mars ▁Close ▁Up ▁program ▁ 2 0 0 3 , ▁▁ 5 . ▁Ven us ▁Trans it ▁of ▁Sun ▁ 2 0 0 4 ▁ ▁International ▁Year ▁of ▁Astronom y ▁ 2 0 0 9 ▁United ▁Nations ▁has ▁declared ▁ 2 0 0 9 ▁as ▁the ▁‘ Intern ational ▁Year ▁of ▁Astronom y '. ▁Bang l adesh ▁including ▁ 1 3 6 ▁countries ▁around ▁the ▁world ▁has ▁started ▁celebr ation ▁of ▁this ▁historic ▁event ▁from ▁ 1 ▁January ▁ 2 0 0 9 . ▁As ▁a ▁part ▁of ▁this ▁Program me ▁An ush and hit sh u ▁Ch ok ro ▁organ ised ▁massive ▁program ▁in ▁Bang l adesh . ▁Program ▁includes ▁stamp ▁publication , ▁ 4 4 5 th ▁B irth ▁An ni versary ▁of ▁ ▁Gal ile o ▁Gal ile i ▁C ele br ation , ▁sky ▁observation ▁Camp , ▁Total ▁Sol ar ▁Eclipse ▁ 2 0 0 9 ▁observation , ▁Gal ile an ▁N ights . ▁ 2 0 0 9 ▁etc . ▁ ▁St amp ▁on ▁astronom y ▁An ush and hit sh u ▁Ch