Saturday, 1 August 2015

aurora discovered in nearby constellation

Northern Lights times 1 million!

Astronomers have reported seeing an aurora on a 'failed' star (a brown dwarf) 18 light years distant from Earth. This is in a distant (18 light years) constellation, within the Milky Way (diameter estimated at 100,000 light years).

http://bit.ly/1UetJ3n

Artists Impression


To put the distances in perspective:
Milky Way galaxy (our home!) diameter 100,000 light years

Satellite galaxies of the Milky Way 0.08 million - 1.63 million light years

other 'local group' galaxies 1.6 - 3 million light years

Andromeda 2.56 million light years

nearest outside of the 'local group' of galaxies ~ 6 light years

related:

astronomy, galaxies, physics, space, popular science, miscellany 1


1 comment :

  1. #aurora in nearby constellation #NorthernLights times 1 million!

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