SOLAR SYSTEM

Detailed explanation-1: -The Doppler effect for electromagnetic waves such as light is of widespread use in astronomy to measure the speed at which stars and galaxies are approaching or receding from us, resulting in so called blueshift or redshift, respectively.

Detailed explanation-2: -If a star is moving away, its light waves get stretched out to longer, redder, wavelengths, producing a redshift. The faster the star, the greater this shift, so observers can measure the line-of-sight speed from the Doppler shift.

Detailed explanation-3: -The relative speed of stars moving toward or away from the Sun, as detected through the doppler effect, gives clues to the Sun’s motion through the Milky Way Galaxy as well as other information about the motion of stars, star clusters and gas clouds in space.

Detailed explanation-4: -The Doppler Effect in Astronomy The Doppler effect is of intense interest to astronomers who use the information about the shift in frequency of electromagnetic waves produced by moving stars in our galaxy and beyond in order to derive information about those stars and galaxies.

Detailed explanation-5: -Our closest neighboring star, the Sun, stays relatively fixed in its distance from the Earth, however it rotates fairly rapidly on its own axis. By analyzing the Doppler shifts in the absorption spectrum of the Sun at the edges rotating toward and away from the Earth we can measure the angular velocity of the Sun.