How do the diameters of Planet A and Planet B compare?
Planet A’s diameter is three times bigger than Planet B’s. b) Planet A’s diameter is nine times bigger than Planet B’s. c) Planet A’s and Planet B’s diameters are the same size. d) Planet A’s diameter is 1/3rd that of Planet B’s. e) Planet A’s diameter is 1/9th that of Planet B’s. 4. Which of the following observations is NOT ever possible from the surface of the Earth? a) Mars is observed at midnight. b) A lunar eclipse is seen at new moon. c) A first quarter moon is seen at 6 PM. d) Venus is observed in Scorpius. e) Mercury is visible in the evening. 5. The sidereal period of Pluto is 249 years.
