Daily cosmobite: Fomalhaut’s dusty ring

ALMA_Fomalhaut_01. ALMA/NASA/ESAThe brightest star in Piscis Austrinus is Fomalhaut. Images made by theĀ Atacama Large Millimeter/submillimeter Array (ALMA) in 2012 revealed a narrow dusty ring probably constrained by a pair of unseen planets. That makes Fomalhaut one of about twenty naked-eye stars to host a multiple-planet system.

 

ALMA data, in orange, shows a dusty ring (partially imaged) around Fomalhaut. ALMA (ESO/NAOJ/NRAO). Visible light image in blue: the NASA/ESA Hubble Space Telescope

 

 

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