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Sirius, the Dog Star

The brightest star in the northern night sky, Sirius is actually a binary star system 8.7 light-years away in the constellation Canis Major.

Featured Images

Sirius, Mirzam, and M41 in Canis Major, the big dog

Doggie Treats March 11, 2018

Sirius and Canopus, early evening, early March

Gold and Silver March 1, 2018

Canis Major

The Big Dog February 20, 2018

Sirius B, the white-dwarf companion to Sirius, compared to the size of Earth

Stellar Afterlife February 1, 2012

Radio Programs

Canopus The night sky’s runner-up March 1, 2018

The Dog Days Sweating through the Dog Days of summer August 6, 2017

Leading the Dog One dog leads another across the sky January 21, 2017

Dog Days The dog days of summer August 13, 2016

Sirius Two dogs that are moving apart — after this. January 10, 2016

Sirius Rising The Dog Star climbs into winter evenings January 3, 2015