STAR STRUCK!

As the Earth spins, how do stars appear to move in the night sky?

• They appear to move from East to West

• They appear to move from West to East

• They appear to move from North to South

• They appear to move from South to North

Animals and other Greek mythology characters are commemorated as the names of the constellations. As of today, we still see them resemble the human or animal figures they were named after. What can be inferred from this statement?

• These groups of stars are fixed in their constellations.

• These groups of stars move together from west to east.

• These groups of stars move a bit, but they are confined within their constellations.

• The grouping of these stars is subjective because they are just a product of human imagination instead of natural laws.

Are the locations of stars, planets, and constellations in the sky at certain times of the year a good basis for our beliefs, practices, and decisions in life? Why?

• Yes. Many people became successful through hard work, luck, and some advice from the stars.

• Yes. Why would newspapers and TV shows feature them if they are not reliable and useful?

• No. The locations of stars, planets, and constellations has nothing to do with success rate or correctness of decisions and has no scientific basis.

• No. Stars are much farther away than the moon and the sun, thus the latter should be the basis for our beliefs.

Why do stars have varying colors as it appears to an observer on Earth?

• Because stars' distance from Earth varies.

• Because stars have varied temperature in their photosphere.

• Because stars vary in terms of luminosity and apparent magnitude.

• Because of the presence of huge amounts of helium in their atmosphere.

Vhong is a stargazing enthusiast. As he stargazes, he observed that the constellation Pisces changes position during nighttime as shown in the illustration below. Which motion can be accounted for in the change of the constellation's position?

• The rotation of Earth on its axis

• The rotation of Pisces on its axis

• The revolution of Earth around the Sun

• The revolution of Pisces around the Sun