1. Assume a solar-mass star and a "wobble" period of one year. The larger the velocity change in the wobble, the larger the (C)
   
   

Adistance to the star.

Bmass of the planet.

Csize of the planet's orbit.

Ddistance to the planet.

1. Why are planets with long orbital periods among the last to be discovered? (C)
   
   

AVery few of these planets exist.

BThey are harder to see against the bright light of the host star.

CAstronomers have to watch a long time before they repeat their orbits.

DThey will never block any of the light from their host star.

1. Which of the following are examples of planets that will be very difficult to detect in other solar systems? (A)
   
   

ASuper Earths

BMini-Earths

CMini-Neptunes

DCold Jupiters