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Last Post 10/23/2019 11:40 AM by Mitzi Adams

sunspots

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Jazzlyn

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10/23/2019 8:45 AM
Whay are sunspots darker than the rest of the sun? How big is a sunspot? thank you Jazzlyn

Mitzi Adams

Basic Member

Posts:101

10/23/2019 11:40 AM
Sunspots are darker than their surroundings because they are cooler. Their strong magnetic field keeps some heat from reaching the surface (photosphere) of the Sun. Sunspots are much smaller than the Sun, but can be much larger than Earth. The link below shows the relative sizes: https://www.windows2unive...re/sunspot_size.html Here is another link with a movie made of images from the Solar Dynamics Observatory: https://www.nasa.gov/feat...ot-turn-toward-earth