Multiple Choice
Why do the precise astronomical coordinates of right ascension and declination of a star change systematically night by night?
A) precession of Earth's spin axis
B) bending of light by Earth's atmosphere
C) They do not change because they are fixed positions on a star chart.
D) motion of Earth in its orbit around the Sun
Correct Answer:
Verified
Correct Answer:
Verified
Q89: A full Moon will always be at
Q90: In general, a sundial is NOT a
Q91: In which direction does the Sun appear
Q92: During which type of lunar eclipse does
Q93: Because of precession, how long will it
Q95: From Earth's North Pole,<br>A) the whole of
Q96: Where would an observer have to be
Q97: If an observer starts at Earth's South
Q98: In the system of celestial coordinates that
Q99: The daily and annual rhythms of the