The Astronomical Society of Botswana was formed in Gaborone by a team of astronomy enthusiasts with the aim of inspiring professionals, researchers, educators, students and amateur astronomers to look up and wonder about our place in the universe and about what the universe can teach and tell us.
Why Astronomy in Botswana ?
Map of World Cloud Cover Averaged from 2002 to 2015 (NASA)
The rainy season in Botswana begins in October and finishes in April. The 5 months in between have little to no rain resulting in mostly clear nights – ideal for astronomical observation. While this year, 2020, has recorded higher than average rainfall in many parts of the country, some years record no rain from April through October, giving 7 months of potential clear viewing conditions.
The months of June, July and August rarely experience any rainfall and allow for the long-term planning of astronomical viewing and imaging events, trips and educational opportunities.
Original chart compiled by ASB with data extracted from various sources