The brighter primary star has a temperature 22,400 Kelvin, a true luminosity of 12,100 Suns (after taking ultraviolet radiation into account), a radius 7 solar, (25 percent the separation between the two stars) and a mass 10.5 times solar, which may be enough to send it someday into a supernova explosion.
A grebe (/ËÉ¡riËb/) is a member of the order Podicipediformes and the only type of bird associated with this order. Grebes are a widely distributed order of freshwater diving birds, some of which visit the sea when migrating and in winter. This order contains only a single family, the Podicipedidae, containing 22 species in 6 extant genera.
Grebes live in freshwater (lakes or rivers). Some species of grebe will go to saltwater (sea / ocean) when they are migrating. This is when birds fly to live in a different place in summer or winter.Grebes only migrate if they live in North America, Europe or Asia.Grebes in South America, Africa and Asia do not migrate. grebe is a medium sized bird. They are in the family Podicipedidae. There are 22 species of grebe.