Science Daily - 2010 Feb 16
A binary pair of red stars, one giant one dwarf, has been discovered by a collaboration of astrophysicists from the University of Hertfordshire and The Chinese Academy of Sciences.
The discovery, which is due to be published in the Monthly Notices of the Royal Astronomical Society later this month reports that the researchers have identified an ultra-cool companion to the bright red giant star Eta Cancri, using the UK Infrared Telescope in Hawaii and the Sloan Digital Sky Survey in New Mexico.
Eta Cancri: Researchers in the UK and China recently discovered a binary pair of red stars -- one giant, one dwarf.