A spring holiday that nudges the start of summer, the recent Memorial Day celebration reminds people that the hottest part of the year is coming soon. The months of July and August bring the uncomfortable, humid weather that many people call the “dog days of summer.”
The phrase “dog days” conjures images of yard mongrels seeking relief in shade and water from summer’s steamy heat. However, it’s the star constellation Canis Major that inspired the name.
Canis Major is a group of stars Greek astronomers named in 700 BC. The constellation represents the dog owned by Orion who appears in the nighttime sky in his own group of stars. Orion is the mighty hunter of Greek and Roman mythology.
The bright star Sirius, the nose of the dog constellation, rises and falls with the sun during July and August in the Western Hemisphere. During summer, Sirius is the brightest object in the sky next to the sun. Ancients believed Sirius, called the Dog Star, added to the summertime heat. That’s how the dog days description began.
A third constellation called Lepus, the rabbit, shares the nighttime sky with Orion and Canis Major. The Dog Star chases Lepus, according to Greek and Roman mythologies. Orion is in the sky with his dog that’s chasing a rabbit, composing a nighttime story in the stars.
Recognizing star constellations requires a stretch in our imaginations. Typically, one major part of a star cluster inspires an imaginary figure. Orion, for example, is recognized by three stars that make up the figure’s belt. The rest of the image of Orion can be described as vague at best. The same is true of Canis Major that has Sirius at the tip of the dog’s nose. The rest of the dog’s figure is difficult to accept.
The bright star Sirius, the nose of the dog constellation, rises and falls with the sun during July and August in the Western Hemisphere. During summer, Sirius is the brightest object in the sky next to the sun. Ancients believed Sirius, called the Dog Star, added to the summertime heat. That’s how the dog days description began.
A third constellation called Lepus, the rabbit, shares the nighttime sky with Orion and Canis Major. The Dog Star chases Lepus, according to Greek and Roman mythologies. Orion is in the sky with his dog that’s chasing a rabbit, composing a nighttime story in the stars.
Recognizing star constellations requires a stretch in our imaginations. Typically, one major part of a star cluster inspires an imaginary figure. Orion, for example, is recognized by three stars that make up the figure’s belt. The rest of the image of Orion can be described as vague at best. The same is true of Canis Major that has Sirius at the tip of the dog’s nose. The rest of the dog’s figure is difficult to accept.
Sirius Satellite Radio company hosts a play on words for this constellation using a dog as part of their logo!
Astrology is an old belief that our futures’ can be predicted from star formations. Recognizing the figures in constellations can be interesting and fun. Entertainment is the best reason to view the nighttime skies.
