Examples from the Web for sunspot
And Bishop, Colossus, Warpath, Blink, Sunspot, Quiksilver, Stryker and Havoc will all be there too.
There was still sadness in her breast but it was but a sunspot in the great glory of her happiness.The Short Cut|Jackson Gregory
It means you can only approximately predict the future course of sunspot activity.
They are connected in this way: that sunspot activity and S-Region activity certainly go together.
A sunspot is a region on the Sun that is cooler than its surroundings.
The sunspot cycle has appeared to average 11.2 years in length, and has been called the 11-year cycle.Climatic Changes|Ellsworth Huntington