umbra.
The darkened area of a sunspot is called the umbra. It is the central region of a sunspot where the magnetic field is strongest, causing the area to appear darker compared to the surrounding photosphere of the Sun.
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.
A cooler area on the sun is called a sunspot
The dark area is known as a sunspot on the Sun's surface. Sunspots appear darker because they are cooler than their surroundings. They are caused by strong magnetic activity that inhibits convection and reduces temperature.
A cool, dark area on the sun's surface is called a sunspot. Sunspots are areas of reduced temperature that appear dark against the brighter background of the surrounding solar surface because they are regions of concentrated magnetic field flux inhibiting convective flow.
The darkened area of a sunspot is called the umbra. It is the central region of a sunspot where the magnetic field is strongest, causing the area to appear darker compared to the surrounding photosphere of the Sun.
penumbra.
penumbra.
A sun spot
An area on the sun that is cooler is called a sunspot.
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.
a sunspot
Sunspot
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A "sunspot."
a sunspot is a area on the sun's atmosphere a solar flare is a very hot surface of the sun. -stephanie kinghorn- a sunspot is a area on the sun's atmosphere a solar flare is a very hot surface of the sun. -stephanie kinghorn- a sunspot is a area on the sun's atmosphere a solar flare is a very hot surface of the sun. -stephanie kinghorn- a sunspot is a area on the sun's atmosphere a solar flare is a very hot surface of the sun. -stephanie kinghorn- a sunspot is a area on the sun's atmosphere a solar flare is a very hot surface of the sun. -stephanie kinghorn-
A cooler area on the sun is called a sunspot