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Sunspots expand and contract as they move across the surface of the Sun and can be as large as 80,000 kilometers (50,000 mile) in diameter, making the larger ones visible from Earth without the aid of a telescope

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13y ago

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How big is a large sunspot?

A Large Sunspot can be up to about 10,000 miles across.


Does Neptune have any sunspots on it?

No, sunspots are on the sun. Neptune does have a big dark spot, but it's not a sunspot.


What is the largest sunspot?

Prominence Sunspot in 1945


What are sunspot maximums and sunspot minimums?

Sunspot maximum and sunspot minimum are the points in time (roughly 6 years apart) when the sun is producing the most, or the least sunspots. In the past this has been measured both by sunspot area and sunspot count and is directly tied to the solar magnetic cycle.


How many years is the sunspot cycle?

The sunspot cycle is about 11 years in length.


What is the average sunspot cycle in years?

The average sunspot cycle is approximately 11 years, with periods of high sunspot activity followed by lower activity levels. This cycle is known as the solar cycle or the sunspot cycle.


Why do sunspots look small but are big?

Sunspots only look small in relationship to the size of the Sun itself. Even a "small" sunspot, hardly visible, is as big around as the Earth is.


Are sunspots the same size?

No. Some sunspots are fairly small, compared to the size of the Sun, while some can get pretty big. Sunspots grow, and merge, and a "medium" sized sunspot covers an area larger than the Earth. You can see the daily sunspot number on the web at www.spaceweather.com.


What is a cooler area on the sun's surface?

An area on the sun that is cooler is called a sunspot.


Can you direct me to a picture of a sunspot?

No


Are you in the high middle or low part of the sunspot cycle?

The Sun is rising close to its high, or peak sunspot cycle.


What is the center portion of a sunspot called?

The center portion of a sunspot is called the umbra. It is the darkest part of the sunspot where the magnetic field is strongest and the temperature is cooler than the surrounding areas.