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.
The Great Crested Grebe is found across most of Europe and central Asia, though it also winters in parts of southern Asia (e.g. northern India). Colonies can also be found scattered through Africa, from Tunisia and Egypt in the north, through a few scattered colonies in central Africa to South Africa.he Great Crested Grebe is found across most of Europe and central Asia, though it also winters in parts of southern Asia (e.g. northern India). Colonies can also be found scattered through Africa, from Tunisia and Egypt in the north, through a few scattered colonies in central Africa to South Africa.