Sentences with phrase «thousands of red giant»

Not exact matches

A team led by astronomer Steven Majewski of the University of Virginia in Charlottesville sorted through a half - billion objects in the 2MASS catalog to find several thousand M giants, a distinctive class of red - giant star common in the Sagittarius dwarf but rarely seen above or below the plane of our galaxy.

Using data involving the temperature and brightness of the stars collected by the Hubble Space Telescope, they observed 44 blue stragglers among the cluster's many thousands of red - giant and white - dwarf stars.

Since 2004, they've looked at a set of about a thousand stars, mostly red giants.

The stars may be passing through a stage of stellar evolution that lasts no more than a few tens of thousands of years, the scientists say — a phase between red giants (about 30 or 40 times the size of our sun) and blue subdwarfs (stars about one - fifth the size of our sun but seven times hotter and 70 times brighter).