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What is the lighter-colered region around the dark center of a sunspot called?
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∙ 12y ago
penumbra
Wiki User
∙ 12y ago
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Why is the center of a Sunspot dark?
It is not actually dark, it is just dark in comparison to the rest of the Sun's photosphere. This is because the magnetic fields/flux associated with the sunspot inhibit convection and therefore reduce the amount of heat rising from below where they are present.
What is the line through the center of the sun called?
As far as I know, the sun is always the center of a solar system unless there is something with a greater mass very close by. I believe it would just be called a solar system. 2nd Answer: Good answer! It also could be called a 'heliocentric' model. Heliocentric means, "Sun at the center".
How do you find the smallest angle of rotational symmetry for a figure?
If you can rotate (or turn) a figure around a center point by fewer than 360° and the figure appears unchanged, then the figure has rotation symmetry. The point around which you rotate is called the center of rotation, and the smallest angle you need to turn is called the angle of rotation. This figure has rotation symmetry of 72°, and the center of rotation is the center of the figure:
What part of the Sun is the coolest?
The center of a sunspot is one of the "coolest" places on the Sun's exterior (photosphere). At as low as 2700°C, sunspots are cooler than the typical 5500°C of the solar surface.
What is orbit of the sun?
The sun is in an enormous orbit around the center of the Milky Way galaxy. It is estimated that it takes between 225 and 250 million years for the sun to make one orbit, called a galactic year. We are traveling around the center of the galaxy at a rate of about 220 km/second, which is .073% of the speed of light.
What is the light colored region around the dark center of a sunspot called?
Penumbra
What is the center portion of the sunspot called?
umbra
What is the center portion of a sunspot called?
Corona
Dark center of a sunspot?
Umbra.
You saw black dot on sun after rain when you take snap black dot is seen on snap at center what is it?
A sunspot.
Why is the center of a Sunspot dark?
It is not actually dark, it is just dark in comparison to the rest of the Sun's photosphere. This is because the magnetic fields/flux associated with the sunspot inhibit convection and therefore reduce the amount of heat rising from below where they are present.
What is the line through the center of the sun called?
As far as I know, the sun is always the center of a solar system unless there is something with a greater mass very close by. I believe it would just be called a solar system. 2nd Answer: Good answer! It also could be called a 'heliocentric' model. Heliocentric means, "Sun at the center".
What was the theory of the sun goes around the eath and the earth goes around the sun?
The theory that the Sun revolved around the Earth (i.e. that the Earth is the center) is called Geocentricity. The theory that the Earth revolves around the Sun (i.e. that the Sun is the center) is called Heliocentricity.
What is the rotation of air around a high pressure center is called what?
It is Anticyclones
What is the center of a dartbroad called?
The very center is the Double Bulls eye, and the small ring around it is the Bulls eye.
What is the center of a dartboard called?
The very center is the double bulls eye, and the small ring around it is just bulls eye.
What is a huge star group called when it rotates around a common center?
a galaxy?
