Ranking Task: The Size of Planets, Stars, and Stellar Remnants
Listed following are several astronomical objects. Rank these objects based on their diameter, from largest to smallest. (Note that the neutron star and black hole in this example have the same mass to make your comparison easier, but we generally expect black holes to have greater masses than neutron stars.)

a. main-sequence star of a spectral type Ab. the Moon
c. Jupiterd. the event horizon of a two-solar-mass black hole
e. a two-solar-mass neutron starf. a one-solar-mass white dwarf