0
Sunspots are actually the colder regions on the sun's surface, due to which comparatively less radiations are emitted by these regions than the rest of the surface of the sun. That is why they appear to be black.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How the sunspot affect the earth?
The primary affect on the Earth is on our ionosphere
Why do sunspots appeared black when observed from earth?
The relative temperature of sunspots is lower than the surrounding temperature of the sun's surface. Since we adjust our camera's to the high temperature of the sun the relatively cooler sunspots appear black to us.
How does the sunspot cycle seem to influence life on earth?
Hh
What is retrograde motion as applied to a planet?
The "apparent" reverse or backwards motion of a planet as observed from Earth. The innermost planets appear to have a retrograde motion when viewed from Earth.
Why do some French people appear to be black?
Because they are black. There are black people in virtually every country on earth.
How is a lunar and solar eclipse alike?
Both lunar and solar eclipses are the result of positioning 3 astronomical bodies (earth, sun and moon) in a straight line relative to the observer. A solar eclipse is observed when the sun, moon, and earth are positioned in a straight line with an observer on the earth. A lunar eclipse is observed when the sun, earth, and moon are in a straight line with an observer on the earth. A lunar eclipse, as observed by an observer on the earth would appear as a solar eclipse as observed by an observer on the moon.
How is the sunspot cycle directly relevant to us here on Earth?
The 11-year sunspot cycle is not especially relevant to life on Earth, but longer cycles that appear to be connected to sunspots may also have an influence on Earth's climate. For example, in the 300 years that we have been tracking sunspot numbers, we have observed two extended minima of sunspots, the Maunder Minimum of 70+ years and the Dalton Minimum of about 40 years. We do not know precisely what the relationship is between sunspot minima and climate, but in each case the lack of sunspots seemed to be correlated with lower-than-normal temperatures. With our modern electronic technological civilization for the past 80 years, however, another factor may come into play. Peaks of the sunspot cycle are also associated with "solar storms" and higher-than-average levels of geomagnetic activity. This can cause problems with unshielded electronic devices, and a severe solar storm might cause widespread disruption of our satellite-based communications networks. In an extreme case, a massive solar storm might cause the failure of many weather satellites, leading the an inability to predict and track tropical storms or provide communications to military command-and-control systems.
If Black-African people were the first to appear on Earth who was second and third and so on?
they weren't technically black first of all they were Egyptian which is in Africa but they weren't "black"
Why do we see different constellations every season?
The stars and planets are observed from the earth, and because the earth is rotating and tilting on its axis, and is also orbiting the sun, the stars and planets appear to be moving in relation to the observers view.
Why do the amount of sunspots change over time?
sunspot: A spot or patch appearing from time to time on the sun's surface, appearing dark by contrast with its surroundingThey appear because of strong magnetic forces on the sun. Our magnetic forces are changing on earth too.
What a sunspot is?
A sunspot is an area on the Sun's surface (the photosphere) that is affected by intense magnetic activity, which inhibits convection, thus reducing the surface temperature in that region. Even though sunspots are still very bright and hot they appear darker because they are cooler than the surrounding area. The normal temperature of the photosphere is about 5,800 kelvin, whereas the temperature of a sunspot is roughly 4,000 - 4,500 kelvin, which leaves them clearly visible (through filters) as dark spots. The average sunspot is about the size of the Earth! However, sunspots come in a variety of sizes ranging from hundreds to tens of thousands of miles across (many times larger than Earth). Scientists measure the total size (area) of all of the sunspots seen on the sun every day to get a measure of how active the sun is. Sunspots are not permanent. They appear and disappear on the surface of the sun in regular cycles that average about 11 years.See the link below for more information
Where on earth does tides get observed around?
Coastal Ares on Earth
