The reason the planets appear to be near the ecliptic is

a. the planets revolve around the Sun in nearly the same plane
b. compared to the stars, the planets are near the Sun.
c. because the Sun orbits the Earth once per year.
d. the ecliptic is only 23 degrees from the celestial equator.
e. the planets are much nearer to us than the Sun.


Ans: a. the planets revolve around the Sun in nearly the same plane

Physics & Space Science

You might also like to view...

A space barge pushes on a spaceship with a rest mass of 15,000 kg and accelerates it from a speed of 0.600c to a speed of 0.700c. How much work does the barge have to do to accomplish this? (c = 3.00 × 108 m/s)

A) 2.03 × 1020 J B) 2.70 × 1020 J C) 8.78 × 1019 J D) 5.42 × 1020 J E) 1.35 × 1020 J

Physics & Space Science

Suppose a 5.0-meter diameter telescope were constructed on the dark side of the moon. The viewing there (except for brief periods of sunlight) would be excellent. As an example, what would be the separation between two objects that could just be resolved on the planet Mars in 500 nm light? [The distance to Mars at closest approach is 50 million miles.]

Physics & Space Science

Debris disks are cold dust disks around main-sequence stars that are produced by collisions among planetesimals

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

Approximately how many brown dwarfs are believed to exist in the Milky Way galaxy?

A) 100,000 B) one million C) one billion D) one hundred billion E) ten trillion

Physics & Space Science