The “dog days” of summer are here – they began this past Sunday, July 3. They will continue through August 11. It’s something we’ve all heard – those dog days of summer – and certainly have all felt, but do you know why it’s called “dog days”? It’s all about Sirius, the dog star (it’s the largest star in the Canis Major constellation).During these sultry days of summer, Sirius rises and sets with the sun – a belief from antiquity that “explains” why it is so hot. Okay, that’s an oversimplification but it’s the general idea. Now you know why it’s so hot – because of Sirius.