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.
Juveniles have a striped black and white head and neck. Distribution: The Great Crested Grebe has been recorded in all Australian states and territories. It is found in coastal Queensland, throughout New South Wales, coastal South Australia, coastal and south-west Western Australia, and the Northern Territory.reat Crested Grebe. Grebes are expert divers, and usually dive rather than fly to escape danger. Calls of the Great Crested Grebe are described as a guttural 'karr-arr', a shrill 'er-wick', as well as trumpeting, moaning and whirring noises.