Blue Moon

The Weekly Watch

Dog Days

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According to the National Weather Service: The “dog days of summer” is a phrase used to describe the hot and humid days of summer. It can be traced back thousands of years to the days of the Roman Empire. It refers to the dates from July 3 through August 11, which is 20 days prior and 20 days after the star Sirius rises and falls in conjunction with the sun. Sirius was known as the “Dog Star,” because it is the brightest star in the constellation Canis Major (Large Dog).

The name Sirius comes from an ancient Greek word for “scorching” or “glowing.” Plus, Sirius is the brightest star visible from Earth, and it’s visible from both hemispheres. Also, it’s the brightest star in the evening sky during the Northern Hemisphere winter... Sirius is behind the sun as seen from Earth during the Northern Hemisphere summer. Then, in late summer, it appears in the east before sunrise, near the sun in our sky. ... And then, it traveled across the sky with the sun all day. Thus, early stargazers might have imagined a double-whammy from Sirius and the sun caused the hot weather.

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