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Exoplanetary Scratchpad

[SysBP Img]

The first star with spiral arms seen in its dust disks. These could be signs of two planets tugging at material, though other processes could also explain them. The arms extend out to twice that of Pluto's orbit. These structures have been predicted in simulations before, but this is the first time it was seen in a photograph. It is a short-lived phase of star formation and thus very rare.

SAO 206462 System Web Pages[]

SAO 206462 System In the News[]

Spiral Arms Detected (Nov 2011)[]