Astronomy / Space First quaternary system discovered..

The Space Pirate

The Space Pirate
Did you guys catch 'Evacuate Earth' on Nat Geo? It puts forwards a fascinating scenario where a Neutron Star is found to be heading towards Earth, to arrive in 75 years, and they have to build a ship to save the human race? Guess where they find the new world? Barnard's Star. :D

What about this:

Gliese 581 g (pron.: /ˈɡliːzə/), also Gl 581 g or GJ 581 g, is an unconfirmed extrasolar planet claimed to orbit the red dwarf star Gliese 581,[2] 22 light-years[3] from Earth in the constellation of Libra.[4] It is the sixth planet purportedly discovered in the Gliese 581 planetary system and the fourth in order of increasing distance from the star. The discovery was announced by the Lick-Carnegie Exoplanet Survey in late September 2010, after a decade of observation. However, the ESO/HARPS survey team was not able to confirm that the planet exists.[5][6]
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I don't remember that system even being in Frontier - it's bound to be in Elite Dangerous - probably as the first system found to contain an Earth like planet. :)
 

Bounder

Bounder
Kepler's most impressive results are yet to come - longer-period tell-tale wobbles or transits need that much more observation time to detect. In time, i expect most of Frontier's predictions regarding system compositions, distributions and densities etc. to be borne out...

It is amazing progress though. Talk now is of optical data in the near future; rather than just inference, this will be direct sampling of planetary light - not 'seeing' in the sense of a whole image, but seeing nonetheless... enough to analyse exoplanet atmospheres. Then we'll be ready to detect liquid water!
 

Vessekai

V
4 suns - wow!
That could make for a crazy orbit where the planet moves closer and further from the more distant suns. Even the distant suns might affect the orbit somewhat. I wonder what the weather would be like?
 
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