I was curious today… Why do we call these the “dog days of summer?”
I learned something today.
“The brightest of the stars in Canis Major (the big dog) is Sirius, which also happens to be the brightest star in the night sky…In the summer, Sirius, the “dog star,” rises and sets with the sun. During late July Sirius is in conjunction with the sun, and the ancients believed that its heat added to the heat of the sun, creating a stretch of hot and sultry weather. They named this period of time, from 20 days before the conjunction to 20 days after, “dog days” after the dog star.” source: http://wilstar.com/dogdays.htm