THE SOUTHWORTH PLANETARIUM
207-780-4249       www.usm.maine.edu/planet
70 Falmouth Street  Portland, Maine 04103
43.6667° N                   70.2667° W
Founded January 1970
               "All constellations great and small."                    

THE
DAILY ASTRONOMER
Friday, June 17, 2016

Quiz: Solar System Cab II
 
 
Sometime in the past, we had a quiz entitled "Solar System Cab."  It was modeled on the Discovery Channel's wonderful game show "Cash Cab."  For the uninitiated, in this program "unsuspecting" passengers, who have been thoroughly briefed before their surprise ride, answer questions about a variety of topics.    If the passengers answer three questions incorrectly, they are kicked out of the cab.    
 
Our version is solar system cab.  We start with the Sun and travel through the solar system.  When we reach a celestial body, we'll ask a question pertaining to that body.    If you answer three questions incorrectly, we kick YOU out at whatever planet you reached when you gave us the wrong answer.   It is on the Honor System, but we would LOVE to know  "How far did you go?"
 
in the second ride of the SOLAR SYSTEM CAB.
 
 
SOL
1.  How hot is the Sun's core (F)?
              a.  10,000 degrees
              b.   30,000 degrees
              c.   10,000,000 degrees
              d.  15,000,000 degrees
 
 
MERCURY
2.  Which ONE of the following statements is NOT true about Mercury?
              a. It was named for the Roman Messenger God
              b. It has the coldest surface of any terrestrial planet
              c. It has a very tenuous atmosphere
              d. It is only 22 million miles from the Sun.
 
VENUS
 
3.  What Soviet Spacecraft fleet actually studied the atmosphere and surface of Venus?
              a.  Hell's Sputnik
              b.  Venera
              c.   Glasnost
              d.  Aphrodite Minor II
 
EARTH
 
4.  As of June 25, 2009, Earth's population (humans, not ants) is approximately what?
             a.  5.62 billion
             b.  6.14 billion
             c.  6.76 billion
             d. 8.19 billion
 
MARS
5.  Mars has two moons.  What are their names?
              a.   Phobos and Deimos
              b.  Click and Clack
              c.  Titania and Oberon
              d.  Hydra and Nyx
 
JUPITER
6.   Jupiter's giant red spot, first observed by Galileo in 1610, is approximately how large?
             a.  About the size of Mars
             b.  one million miles across
             c.  More than twice the size of Earth
             d.  The size of Rhode Island
 
SATURN
7.  How many KNOWN moons does Saturn have?
             a.  10
             b. 23
             c. 42
             d.  61
 
URANUS
8. Uranus is unique amongst the planets because........
             a.  it is tilted almost on its side
             b. it's upper cloud layers are almost purple
             c.  it has exactly 100 moons
             d. it is the only planet to have a comet in orbit around it
 
NEPTUNE
9.  In order of size, where does Neptune rank.  (The largest planet being # 1; the smallest # 8)
           a.  2
           b. 3
           c. 4
           d. 6
 
ANSWERS:
 
 
1.               d.  15,000,000 degrees
The Sun's core is hot enough to fuse hydrogen into helium.   This core temperature is much higher than that of a red dwarf core, which is around 10,000,000 degrees: the minimum temperature at which fusion reactions can be ignited and sustained.
 
2.    d. It is only 22 million miles from the Sun.
Mercury's mean distance is 36 million miles.    While it's distance does vary, it never ventures as close to the Sun as 22 million miles.     Also, Mercury DOES have the coldest surface of any terrestrial planet (Mercury, Venus, Earth and Mars.)   Its night side is steeped in a frigid cold:  colder even than Mars can ever be.
 
3.               b.  Venera
The Venera crafts (there were more than a dozen) visited Venus.  None of them lasted long once they entered the Venusian atmosphere. 
 
4.     c.  6.76 billion
One fifth of these are in China!  One half are on Forest Avenue at 5:00 p.m. weekdays
 
5.    a.   Phobos and Deimos
 
The names mean  "panic" and "fear."      Titania and Oberon are moons of Uranus;  Nyx and Hydra are moons of Pluto; 
 
6.    c.  More than twice the size of Earth
 
This monster storm will last for another thousand years.   It will shrink and dissipate, but at the moment, it is more than twice as large as our entire planet.    
 
7.   d.  61
 
Pay close attention to the word "known."  We have no idea how many moons Saturn actually has.   We only know how many have been found.    If we ask this question again next year, the answer might well be different.
 
8.               a.  it is tilted almost on its side
Something must have hit Uranus a long time ago.  This impact caused the young Uranus to be pushed over on its side.  It has one pole pointed toward the Sun and the other pointed away.
 
9.   c. 4
The arrangement of planets (in order of size) is:
Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars Mercury
 
 
 
So, tell us:  How far did you go?
 
We'll put your name next to the planet on our board of champions