fusion
Jupiter
Sunspots sit on the sun's photosphere. The photosphere is the surface of the sun, and sunspots are dark regions on it that are visible. The photosphere's average temperature is about 5800 degrees Kelvin.
earth has the smallest range of temperatures
red shifted
Black shirts absorb more and reflect less radiation.
The difference in temperatures between the Equator and the north and south poles, plus the rotation of the earth, causes the air currents.
Solar system
light from the they orbit makes it difficult to locate extrasolar planets with telescope