Monday, December 30, 2013

ASTRO 101 QUIZ 2 - BOLD ANSWERS

1. Which motion of the Earth is responsible for the apparent rising and setting of the sun?
 a. it’s rotation b. it’s precession c. it’s revolution d. it’s annual motion

2. Celestial bodies appear to move _____ degrees an hour, or 1 degree every 4 mins.
 a. 12 b. 4 c. 15 d. 60

3. Which of these is/was NOT one of the common uses of the constellations?
 a. as navigational aids b. as calendars c. as mnemonics d. as indicators of stellar distances

4. An “area” of the sky, usually containing a recognizable pattern of stars, is called a(n):
a asterism b. constellation c. zenith d. azimuth

5. The third brightest star in a constellation is typically referred to as:
 a. Alpha b. Beta c. Gamma d. Delta

6. How much brighter is a 4th magnitude star than a 9th magnitude star?
 a. 6.3X b. 16X c. 40X d. 100X 

7. How much brighter is a 1st magnitude star than a 2nd magnitude star?
 a. 2.51X b. 16X c. 40X d. 100X

8. T – F Besides Greek letters and numbers, some stars, have proper names.

9. Astronomers call a recognizable pattern of stars, such as the Big Dipper, a(n):
a. Bayer designation b. Greek designation c. asterism d. constellation

10. What property of a star could one determine if one had both the apparent and absolute magnitudes? It’s
 a. mass b. distance c. age d. name

Bonus 
11. Last night while I was sitting in my hot tub, listening to Pink Floyd and contemplating the universe, I looked  up and noticed my favorite star, Shurnarkabtishashutu, was 45 degrees above the eastern horizon. I know it rose
at 8:00 pm. What time was it?
a. 8:45 pm b. 8:45 am c. 11:00 pm d. 5:00 am

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