Home » News & Blogs » How big can sunspots get?
Bookmark and Share
All About Space

How big can sunspots get?

15 Apr 2018, 06:00 UTC
How big can sunspots get?
(200 words excerpt, click title or image to see full post)

Sunspots can get exceptionally large, reaching diameter may times larger than Earth. Image Credit: NASA
Asked by Alan Breen

In short, sunspots are characterised as dark, cooler regions where the Sun’s internal magnetic fields rise up through its surface layers. They can get exceptionally large and reach sizes many times bigger than Earth. In fact, there have been many recorded instances of sunspots reaching huge proportions. One spotted in 2014, known as Active Region 12192, was the largest seen for 24 years. It covered a region about 4 billion square kilometres (1.65 billion square miles), almost the same size as Jupiter.

Sunspots are closely associated with solar flares and coronal mass ejections, which are eruptions of material thrown from the Sun’s surface and out into space.
Keep up to date with the latest news in All About Space – available every month for just £4.99. Get 5 issues of All About Space for just £5 with our latest offer!

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day