Canis Major, the Greater Dog

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


Canis Major, the Great Dog Canis Major loyally follows its mythical master...

Radio Programs

Caroline’s Cluster A surprising star cluster Thursday, January 14, 2016
Aludra The showiest “dog” star of all Wednesday, January 13, 2016
The Dog’s Tail The big dog wags its tail — after this. Tuesday, January 12, 2016
Bright Paw The big dog’s brilliant paw Friday, February 13, 2015
Adhara A different view of a hot star Thursday, January 30, 2014
Wezen Dumping chemicals into space Wednesday, January 29, 2014
Mirzam Revving up a celestial dog Tuesday, January 28, 2014
Adhara Another impressive “dog” star Saturday, March 2, 2013
The Big Dog Biting into a bright constellation Sunday, January 29, 2012
The Big Dog A constellation with a bite Friday, March 25, 2011
M46 and M47 Two prominent "families" of stars Saturday, February 26, 2011

Featured Images

Superflare on one of the stars of DG Canum Venaticorum
Tiny Star, Big Outburst Wednesday, December 3, 2014


©2015 The University of Texas McDonald Observatory