How was the rotation rate of Jupiter's core determined? A) by ...

[elizabeth18]

How was the rotation rate of Jupiter's core determined?
 
  A) by observing the Great Red Spot
  B) by watching Io move across the disk of Jupiter
  C) by radio observations of Jupiter's rapidly spinning magnetosphere
  D) by observing the fastest moving regions of Jupiter's equator
  E) by measuring the oblateness of Jupiter's disk

Question 2

What is seeing?
 
  A) a measure of the quality of the telescope's optics
  B) a measure of the transparency of the scope's objective lens
  C) a measurement of the sharpness of vision of the astronomer's eyes
  D) a measurement of the image quality due to air stability
  E) a measurement of clarity and absence of clouds

[ryhom]

Answer to Question 1

C

Answer to Question 2

D

[elizabeth18]

Thanks

[ryhom]

Welcome