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A constellation that arcs high overhead in fall and early winter.


Perseus, the Hero

Perseus, the Hero May 25, 2010

Radio Programs

California Nebula Lighting up a dark cloud October 8, 2016

Halloween Haunting stars in the evening sky October 31, 2015

Alpha Persei A young star ages in a hurry October 8, 2015

Double Cluster A pair of vigorous star clusters October 4, 2015

Big Story A big-screen story in the autumn sky September 27, 2015

Future Quadruplets A star cloud prepares to give birth April 15, 2015

Perseus Taking the measure of a monster January 24, 2015

California Nebula California in the stars January 24, 2014

Double Cluster Sparkling stellar jewels February 9, 2013

Halloween Star II A stellar cannibal for Halloween October 30, 2012

Halloween Star A two-headed stellar demon October 29, 2012

Mirfak The hero’s brightest star October 28, 2012

Halloween Ghouls Ghoulish delights in the sky October 30, 2011

Alpha Persei Cluster Tracing a galactic cataclysm October 8, 2011

Alpha Persei A young but aging star October 7, 2011

Border Star A star with a double identity September 8, 2011

Featured Images

Close-up view of the California Nebula in infrared light.

California Nebula January 25, 2014

The California Nebula, in Perseus

Stately Nebula November 6, 2010

Comet Hartley-2 from McDonald Observatory

Jolly Green Comet October 21, 2010