When will the full moon be highest above the southern horizon for an observer in the Northern ...

When will the full moon be highest above the southern horizon for an observer in the Northern Hemisphere?
 
  a. at midnight near the summer solstice
  b. at midnight near the vernal equinox
  c. at midnight near the winter solstice
  d. at midnight near the vernal equinox
  e. The angle between the southern horizon and the full moon at midnight does not change with the seasons.

Question 2

A spectroscopic binary shows periodic variations in its
 
  a. radial velocity.
  b. proper motion.
  c. brightness.
  d. mass.
  e. spectral type.

Question 3

During a total lunar eclipse, which of the following are true? I. The photosphere of the sun is obscured by the moon. II. The moon is in Earth's umbra. III. The moon is new. IV. The moon is full.
 
  a. I, III
  b. II, IV
  c. I, II, III
  d. II, III
  e. I, II, III, IV

Question 4

Which of the following kinds of stars is most dense?
 
  a. a supergiant star
  b. a main sequence star
  c. a giant star
  d. a white dwarf
  e. the sun

Question 5

Which of the following is not visible during totality of a total solar eclipse?
 
  a. the corona of the sun.
  b. the chromosphere of the sun.
  c. prominences.
  d. the photosphere of the sun.
  e. all of the above