Barcelona can now save £100m on Mane transfer due to Coutinho clause The Liverpool forward was heavily linked with a move to the Nou Camp and Barcelona can now capture him for a reduced fee based on previous years
Closest to Earth ‘black hole’ turns out to be rare kind of star, after all
A growing body of research posits that the star system HR 6819 does not contain a black hole, contrary to earlier findings. It may instead boast a unique pair of stars.
The object located some 1,120 light-years from Earth has been preliminarily demoted from a bewildering black hole to a binary star system with a rather unusual orbit.
The system consists of a very hot Be spectral type star which spins at approximately 200km per second, shooting out a disc of hydrogen gas which surrounds it.
Previously, it was found to be accompanied by a B3 III star, measuring approximately six solar masses, with a roughly 40-day orbit. The Be star, also measuring in at about six solar masses, seemed to be spinning on the spot, which made no sense as two objects of similar mass should spin about a mutual center of gravity.
Following a serious amount of number crunching, researchers earlier this year concluded that the pair must be orbiting a third, massive object that wasn't visible which would explain why the spinning top star was essentially locked in place – a black hole.