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Canis Major, the Greater Dog

A constellation containing the brightest star in the entire night sky, brilliant Sirius


Radio Programs

Caroline’s Cluster A surprising star cluster January 14, 2016

Aludra The showiest “dog” star of all January 13, 2016

The Dog’s Tail The big dog wags its tail — after this. January 12, 2016

Bright Paw The big dog’s brilliant paw February 12, 2015

Adhara A different view of a hot star January 29, 2014

Wezen Dumping chemicals into space January 28, 2014

Mirzam Revving up a celestial dog January 27, 2014

Adhara Another impressive “dog” star March 1, 2013

The Big Dog Biting into a bright constellation January 28, 2012

The Big Dog A constellation with a bite March 24, 2011

M46 and M47 Two prominent "families" of stars... February 25, 2011

Featured Images

Superflare on one of the stars of DG Canum Venaticorum

Tiny Star, Big Outburst December 3, 2014