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elleng

(130,156 posts)
Sat Jul 15, 2017, 01:04 AM Jul 2017

Unlocking Mysteries in the Suns 11-Year Cycle

'Our sun may be special to us, but among all the stars in the galaxy, it’s not that unique.

According to a study published Thursday in the journal Science, our beloved star can be classified as an ordinary “solar-type” star, meaning that the internal processes that control its activity are similar to those seen in many other nearby stars.

The sun goes through an 11-year cycle where its magnetic poles flip — imagine the north and south poles on Earth changing place — and during this time the sun’s activity changes between subdued and tumultuous. When activity is low, it is known as solar minimum, and when activity is high, it is known as solar maximum.

As the sun nears solar maximum and its activity cycle ramps up, its surface gets covered in sunspots, which are ephemeral dark marks created by strong magnetic activity.

“Above sunspots you have complex structures that trigger dynamic phenomenons, eruptions that are like volcanoes,” said Antoine Strugarek, a solar physicist at the French Alternative Energies and Atomic Energy Commission and at the University of Montreal. “Those eruptions can impact our Earth.”'

https://www.nytimes.com/2017/07/14/science/sun-cycles-solar-maximum-minimum-corona.html?

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Unlocking Mysteries in the Suns 11-Year Cycle (Original Post) elleng Jul 2017 OP
It's supposed to get colder during the solar minimum Warpy Jul 2017 #1

Warpy

(110,913 posts)
1. It's supposed to get colder during the solar minimum
Sat Jul 15, 2017, 01:39 AM
Jul 2017

Yes, please. Damned monsoons still haven't shown up.

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