Sirius A and B: A Double Star System in Canis Major (NASA, Chandra repost, 09/26/00) by NASA’s Marshall Space Flight Center. The original photo can be viewed here.

Sirius was said to be responsible for the Northern Hemisphere's hot, muggy "dog days" that run from early July through mid-August. ... How to spot Canis Major, ...

On the both sides of Canis Major are noteworthy stars. Sirius, at the nose, is not only the brightest star of the constellation but is also the brightest star in the night sky.

It is located in the constellation Canis Major, the Big Dog, and is shown on most star maps as fixed in the dog's nose (although in his 1954 book "Find the Constellations," author H.A. Rey refers ...

Although it puts out 23 times the light as does our own Sun, Sirius appears as bright as it does mainly because it is so near. The star is the fifth closest star system, a mere 8.7 light years away.

Sirius is the jewel in the crown of Canis Major, one of Orion’s two hunting dogs. His main quarry is Orion’s adversary Taurus (the Bull), but in the sky he’s shown as chasing Lepus (the Hare).

Under a dark sky, it isn’t hard to visualize a dog sitting up on his hind legs, when tracing the constellation Canis Major. Sirius marks his collar. Binocular users may enjoy looking a little ...

Sirius, in the constellation Canis Major, shines at magnitude -1.46, so has long been a well-known star to many ancient cultures. It’s the fifth-closest star system to our own.

You may have heard the phrase "the dog days of summer," but do you know the science behind the saying? Hint: it's got nothing ...

Canis Major translates to “Greater Dog,” so it’s no surprise that the brightest star ... Sirius gave rise to the phrase "Dog Days," as it was thought that its conjunction with the sun added ...