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The darkest part, where the magnetic field is approximately vertical to the sun's surface is called the Umbra.

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Why do sun spots appear dark?

A typical spot consists of a dark region called the umbra, surrounded by a lighter region known as the penumbra. The sunspots appear relatively dark because the surrounding surface of the Sun (the photosphere) is about 10,000 degrees F., while the umbra is about 6,300 degrees F. Sunspots are quite large as an average size is about the same size as the Earth.


What planet has a Red Spot just like the one found on Jupiter?

None. Saturn has a great white spot, Uranus has a dark spot. However, Neptune has a great dark spot [see related link for a picture] which has been compared to Jupiters great red spot, but it is not red.


What planet has a storm like feature called the Great Dark Spot?

The planet Neptune had a great dark spot. It soon vanished after discovery, leading astronomers to believe it was just a temporary storm, unlike the Great Red Spot on Jupiter which has been raging for hundreds of years. See the related link for more information.


Which planet in your solar system has a black spot?

The "black spot" you may be referring to is likely the Great Dark Spot on Neptune, one of the ice giant planets in our solar system. It is a large, rotating storm system similar to Jupiter's Great Red Spot. However, it should be noted that this feature has not been observed in recent years, suggesting it may have dissipated.


What is the farthest south that you can see the Northern Lights?

On very rare occasions they have been seen as far south as Central Texas (33 deg). They appear as a faint , deep red glow on the low northern horizon. They usually can be seen for a couple of nights when the sun spot activity is high. You have to be in a very dark area and know what to look for when they are visible. They were last seen here in 2001, 1991, 1979.

Related Questions

An area seen as dark spot on the photosphere of sun?

A "sunspot."


What is a gravid spot on a yellow molly?

A gravid spot is the dark area on the fish's butt.


Define the blind spot?

An area not clearly seen.


The dark spot seen in the nucleus in non dividing cells where RNA for ribosomes is made is called the?

The dark spot seen in the nucleus in non-dividing cells where RNA for ribosomes is made is called the nucleolus. It is responsible for producing ribosomal RNA and assembling ribosomal subunits, which are essential for protein synthesis within the cell.


Have you seen the dark spot on the sun what is it called where it is formed what causes it?

Yes I have seen a dark spot on the Sun. It is called a "Sunspot". It is formed on the Sun's surface which is called the "photo-sphere" and is caused by a loop of the Sun's magnetic field poking though the Sun's surface.


The dark spot seen in the nucleus in non-dividing cells where RNA for ribosomes is made is called the what?

nucleoulus


Does Neptune have a dark spot which is a storm?

Yes it does. The spot is called 'The Great Dark Spot'


What are the names of Neptune's seas?

The names of Neptune's seas, or large dark spots, are: The Great Dark Spot The Dark Spot The Scooter The Small Dark Spot


What is the dark spot inside the nucleus?

The dark spot in the nucleus is called the nucleolus


What is the the dark spot inside the nucleus?

The dark spot in the nucleus is called the nucleolus


Is Neptune's great dark spot a giant storm an impact crater or a plane of dark lava?

Neptune's great dark spot is a giant storm, similar to Jupiter's Great Red Spot. It is a large area of high pressure that causes gases to circulate rapidly, creating the appearance of a dark spot on the planet's surface.


What is Neptune 4 main areas?

great dark spot ,small dark spot