Which of these was NOT seen telescopically by Galileo?
A) Sunspots
B) Venus' phase cycle
C) Four moons around Jupiter
D) Stellar parallax
E) Craters and mare on the Moon

Question

Quizplus · Accepted Answer

Galileo was not able to observe stellar parallax because the telescopes of his time were not powerful enough to detect the small shifts in position of the stars due to Earth's motion around the Sun.

Which of These Was NOT Seen Telescopically by Galileo