The Living Force
Altair said:Palinurus said:Hi Altair,
This info is already on SotT here: http://www.sott.net/article/278033-NASAs-telescopes-find-coldest-known-brown-dwarf
Is it the brown dwarf which was mentioned by C's?
Maybe. Have a look here for some clues: NASA's WISE Survey Finds Thousands of New Stars, But No 'Planet X'
There's also the search function, in case you want to dig deeper. ;)
Thanks Palinurus. I guess 7.2 light years is too far for this new discovered brown dwarf to be the "Nemesis"/Planet X, which acoording to C's will be visible at Earth with the naked eye and cause people panic.
Indeed, 7.2 ly is well outside the solar system.
I don't think the C's have ever suggested that Nemesis will be visible to the naked eye. Its closest approach is supposed to bring it to the inner edge of the Oort Cloud, which is much further away than Pluto. Considering that neither Neptune nor Uranus (which are closer than Pluto) are naked-eye visible, it's basically impossible for Nemesis to be detected this way.
I think what you might be thinking of is the comet cluster dislodged from the Oort Cloud by Nemesis which, as it approaches the inner solar system, could indeed become visible to the naked eye.