Suppose you live at latitude 30S. Which star is circumpolar in your sky?
A) Alpha Centauri
B) Deneb
C) Spica
D) Sirius
Question 2
Suppose the Moon's orbit were unchanged, but it rotated faster (meaning it did not have synchronous rotation). Which of the following would be true?
A) The Moon would go through its cycle of phases (from one new Moon to the next) in less time than it does now.
B) We would no longer always see nearly the same face of the Moon.
C) Tides would be stronger; that is, higher high tides and lower low tides.
D) High tides would occur more frequently than they do now.
E) All of the above are true.
Apparent and True Orbits of Alpha Centauri.
Spectral Line Motion in Binary Star Systems
Gorillas live in one-male or multimale groups, from which females emigrate at sexual materity.
A sea star
Sea star