What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead?
The photosphere appears bright yellow (almost white) as viewed from the ground on a clear, cloudless day. As the Sun approaches the horizon over an ocean, the photosphere appears orange-yellow and as the Sun sinks below the horizon the photosphere appears more red-orange.
What energy sources on Earth Cannot be thought of as stored sunlight?
The activity on the surface of the Sun changes the shape of the corona. What energy sources on Earth cannot be thought of as stored sunlight? The nuclear energy stored in the heavy elements with large atomic numbers.
What is sun spot activity?
Sunspots are areas that appear dark on the surface of the Sun. They appear dark because they are cooler than other parts of the Sun’s surface. This motion creates a lot of activity on the Sun’s surface, called solar activity. Sometimes the Sun’s surface is very active. Other times, things are a bit quieter.
What does the sunspot cycle affect?
If sunspots are active, more solar flares will result creating an increase in geomagnetic storm activity for Earth. Therefore during sunspot maximums, the Earth will see an increase in the Northern and Southern Lights and a possible disruption in radio transmissions and power grids.
What heats the chromosphere and corona to high temperatures?
What evidence can you give that the solar corona is at a very high temperature? It emits X-rays. How do astronomers think the solar chromosphere and corona gets heated to their high temperatures? Magnetic fields carry heat outward from lower layers.
What heats Corona?
What we know is that the outer layer of the Sun is very turbulent, like a pot of boiling water. This layer of the Sun is called the convection zone. The magnetic field in the corona is anchored in the convection zone. The gas pressure in the convection zone dominates the magnetic field pressure.
What is the fastest moving material in the universe?
Mercury