PHILADELPHIA - What pops in your head when you hear "Dog Days of Summer"? Warm, humid weather? However, the origin of the saying actually relates to space.The brightest star in our night sky is Sirius, which is nicknamed the dog star.
That nickname comes from its constellation; it's part of a group of stars called The Great Dog.But, don't go out looking for Sirius tonight!
The best time to see Sirius in the night sky is the middle of winter. In the middle of summer, it's hidden in the sky because it's out during the day.These days, Sirius and our sun rise around the same time - about 6 a.m.
Because the Sirius star is in sync with our star, it got linked to all the hot weather our star brings us this time of year.The tilt of the Earth leads to sunlight being more focused on our part of the Earth these days.The more focused the sun is on an area, the warmer it gets.July is the hottest part of the year.