Binary and Multi-Star Systems

A binary is a pair of stars that orbit each other. A multi-star system consists of three or more stars. The stars in a binary or a multi-star system all formed from a single cloud of gas and dust, so they are true "siblings."

Radio Programs

Moon and Spica Two bright stars for the price of one Wednesday, July 25, 2012
Zippy Planets Getting a big kick from a black hole Thursday, June 28, 2012
Capella A quick exit for a “heavy” star Friday, April 27, 2012
Supernova 1987A, III A picture-perfect stellar explosion Thursday, February 23, 2012
Sirius B A close companion for a bright star Tuesday, January 31, 2012
Moon and Hyades Staring into the face of the bull Thursday, January 5, 2012
More Moon and Companions An exciting future for a pair of stars Monday, December 19, 2011
Menkalinan The charioteer’s double-jointed shoulder Sunday, December 4, 2011
Rarae Aves II Dancing with the firebird Tuesday, November 29, 2011
Halloween Ghouls Ghoulish delights in the sky Monday, October 31, 2011
Too Close Getting too close to a black hole Tuesday, September 20, 2011
Evening Lineup II A pair of “pointy” stars Thursday, September 1, 2011
Scorpius Nova A bright stellar merger Monday, August 29, 2011
V404 Cygni A dark star system that puts on a show Sunday, August 14, 2011
61 Cygni Possible homes for neighbors Saturday, August 13, 2011
Moon and Companions Living under brilliant suns Thursday, August 4, 2011
Moon and Companions Stars and planets move apart Friday, June 10, 2011
Algieba The lion's double forehead Saturday, May 21, 2011
Castor The twins and triplets of Gemini Monday, May 16, 2011
Gamma Virginis A beautiful celestial double Thursday, May 12, 2011
Alphecca Overpowering a bright star Thursday, April 28, 2011
Alphard Getting dumped on by a neighbor Sunday, April 24, 2011

Resources

Libra, the Scales Libra represents a balance scale. The name may...

Featured Images

The Necklace Nebula, the remains of a dying star in Sagittarius
 Ring of Fire Monday, August 15, 2011
Delta Lyrae and the Summer Triangle
 Seeing Double Sunday, July 10, 2011

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