300 million quadrillion-ish
Astronomers have known for many years that sunspots are "storms" on the sun's surface, and also that solar prominences seen flaring from the sun during an eclipse probably come from sunspots. what they do not know - yet - is why the sunspots occur in farily regular cycles of many, gradually diminishing to few, and then rising again to many. Times of high sunspot activity are usually also times of high Northern Lights activity and radio interference on earth.
when the sun comes up
sunspots
Sunspots are cooler regions on the surface of the sun. Visually, they look like dark circles sporadically dotting the sun, and their numbers change from day to day.
Sunspots and other natural solar events.
Approximately 1,100 to 1,500 sun spots were recorded. See related link for a graph
155
There were 1,133 tornadoes recorded in the U.S. in 1990. Other countries have not published tornado statistics.
In the years 1990-1995 the state of Florida recorded 429 tornadoes.
4 dawg
Not reliable sources
11 years.
No, sunspots are cooler than the photosphere.
What is true about sunspots
Sunspots affect radio compunication and the weather.
Sunspots are as long as your dick or vag
Galileo first discovered the sunspots in 1610.