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American Astronomical Society (AAS)

@AAS_Office

Mission of the AAS is to enhance & share humanity’s scientific understanding of the universe as a diverse & inclusive astronomical community. Tweet≠endorsement

calendar_today15-11-2010 15:41:51

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American Astronomical Society (AAS)
@AAS_Office

3 weeks ago

Sunspots, areas where solar magnetic fields are concentrated, look dark because they're cooler than surroundings. Spots may last days or weeks, often come in pairs with oppositely directed field & vary in number over the roughly 11-year solar cycle.

Sunspots, areas where solar magnetic fields are concentrated, look dark because they're cooler than surroundings. Spots may last days or weeks, often come in pairs with oppositely directed field & vary in number over the roughly 11-year solar cycle. #GAM2024 #RandomAstroFact
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