ASTR 1345 Test #3 (UTA)
How many AU's is Mercury from the sun?
.4 AU
How many AU's is Venus from the sun?
.7 AU
What is the axial tilt of Mercury?
0 degrees (no seasons)
List the planets from largest to smallest.
1. Jupiter 2. Saturn 3. Uranus 4. Neptune 5. Earth 6. Venus 7. Mars 8. Mercury
List the planets closest to farthest from the sun.
1. Mercury 2. Venus 3. Earth 4. Mars 5. Jupiter 6. Saturn 7. Uranus 8. Neptune
How many AU's is Mars from the sun?
1.5 AU
How many rings does Uranus have?
13 thin rings
How many Earths could fit inside Jupiter?
1400
What is the distance of 1 astronomical unit?
150 million kilometers (Roughly 93 million miles)
What is the axial tilt of Venus?
177 degrees (no seasons)
How many AU's is Uranus from the sun?
19.2 AU
How many AU's is the asteroid belt from the sun?
2.8 AU
What is the axial tilt of Earth?
23.5 degrees (summer, winter, fall, spring)
What is the axial tit of Mars?
24 degrees (same as earth)
What is the axial tilt of Saturn?
26.7 degrees (all seasons, summers are cold, winters are much colder)
What is the axial tilt of Neptune?
29.6 degrees (all seasons, much longer&colder)
What is the axial tilt of Jupiter?
3 degrees (no seasons, always cold)
How many AU's is Neptune from the sun?
30 AU
How many rings does Neptune have?
5 dark rings
How many AU's is Jupiter from the sun?
5.2 AU
How many AU's is Saturn from the sun?
9.5 AU
What is the axial tilt of Uranus?
97.9 degrees (extreme seasons)
How long has Jupiter's "Great Red Spot" lasted?
At least 300 years
Which comet collided with Jupiter causing visible damage from space?
Comet Shoemaker-Levy (July 1994)
What gave the circulating and evolving clouds their white coloration on Saturn?
Crystals of ammonia ice
What creates the apparent dark streaks on Mars' surface?
Dust devils
What is the largest of the terrestrial planets?
Earth
Where is the Orientale Basin located?
Earth's moon
What causes the dark spokes in Saturn's rings?
Electrically charged particles interacting with Saturn's magnetic field
True/False: Jupiter's rotation is 5 minutes SHORTER at the poles than on the equator.
False (The rotation time is 5 minutes LONGER on the poles of Jupiter)
What are Saturn's rings composed of?
Ice and ice-coated rocks
Name the three "Terra's" on Venus' surface.
Ishtar Terra Aphrodite Terra Lada Terra
What is the largest planet in our solar system?
Jupiter
What causes the swirling patterns that appear on Jupiter?
Jupiter's clouds circulate in different directions at different altitudes.
Which planet contains "the face", pyramids and skulls, and a happy face?
Mars
Which planet has ice caps that grow and diminish accordingly with the seasons?
Mars
What is the smallest planet in our solar system?
Mercury
Which planet does the caloris basin (huge impact crater) belong?
Mercury
Which planet has scarps?
Mercury
Which planet has the largest range of temperature?
Mercury
Which planet resembles our moon?
Mercury
Which planet was visited by Messenger (2004 launch) and Mariner 10 (1973 launch)?
Mercury
Which planet's craters have spiderweb-like lines?
Mercury
Which planet contains a Great Dark Spot the size of Earth?
Neptune
Which planet is the windiest?
Neptune (wind speeds reach up to 2,000km/h)
Which hemisphere are the lowlands (rolling plains, less cratered) located on Mars?
Northern hemisphere
What is the name of the largest volcanic mountain in our solar system, covering more area than Missouri and standing 3X taller than Mt. Everest? What planet is it located?
Olympus Mons; Mars
Which probes have flown by Saturn?
Pioneer and Voyager probes
What is the second largest planet in our solar system?
Saturn
Which hemisphere are the highlands (plateaus mountains, heavily cratered) located?
Southern hemisphere
Which spacecraft orbited Venus?
The Magellan
How big, on average, is Jupiter's "Great Red Spot"?
Twice the diameter of Earth
What is the name of the canyon that is 10X longer and 5X wider than the Grand Canyon? And which planet is it located?
Valles Marineris; Mars
Which spacecraft was able to land on Venus and take a few pictures before being ruined by Venus' atmospheric pressure?
Venera 13
Which planet in our solar system is the hottest? (surface temperature of 860 degrees Fahrenheit)
Venus
Which planet's atmosphere is filled with clouds of sulfuric acid and 96% CO2?
Venus
Which planet contains a rift valley as large as the East African Rift?
Venus (it is located near Gula Mons and Sif Mons)
Which planet contains "cow pies" or shield volcanoes?
Venus (similar volcanoes occur on the deep ocean floors of Earth)
Even though Saturn's rings are 1000s of kilometers wide, how thin are they?
about 10m
