 Well, aphelion day means that the sun is 94,500,000 miles away from us. Well, we scratch our heads and wonder, how can it be so hot in the northern hemisphere? Well, that's about the orbital dynamics of the Earth and the sun. Also, the dog days of summer technically begin from July 3rd to August 11th, named in honor of the helical rising of the bright star Sirius, which will once again start rising in the east-southeast before dawn toward the end, or I should say the beginning of early August.