Sirius B takes roughly 50 years to orbit Sirius A. At their nearest approach, the stars are still some 7 astronomical units (AU) from each other, or seven times the Earth-Sun distance.

Sirius A (left) and B, shown in this artist’s concept, are separated by about 25 times the Earth-Sun distance and circle each other once every 50 years.

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 ...

“Roughly 13,000 years from now, Sirius will be rising with the sun in mid-winter.” Ah yes, the dog days of winter. When it’s so cold that even the dogs lie around the fire, trying to stay warm.

Sirius Star, North Star, ranked. Anna Kaufman. ... According to NASA, it is over 20 times brighter than our sun and twice as massive, though it might not appear that way to the naked eye.

Bad news, heat haters: The dog days of summer are not, as Florence Welch once sang, over or done. The dog days of summer, the period during which the star Sirius rises alongside the sun, run from ...

Take Sirius, our brightest star (after the sun). When magnified with a mighty enough telescope it splits into two stellar partners —Sirius A and Sirius B. Other systems come in threes, fours, or ...

Sirius B takes roughly 50 years to orbit Sirius A. At their nearest approach, the stars are still some 7 astronomical units (AU) from each other, or seven times the Earth-Sun distance.