Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Life in the Cosmos > Titan > Flashcards

Titan Flashcards

1
Q

What is Jupiters rotation period?

A

9h 55m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is Jupiters atmosphere made up of?

A

H, He, methane, ammonia, O, N, Sulphur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Jupiters upper layers divided into?

A

Dark Belts and light zones with zones colder than belts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the main active phenomena on Jupiters surface?

A

Great red spot
2-3x earth size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is saturns rotation period?

A

10h 34m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is saturns atmosphere made up of?

A

Mostly H

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What happens to the H in Saturn moving inward?

A

Gets metallic as H starts sharing electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is saturns upper atmosphere made of?

A

Layers of clouds made of ammonia ice, water ice, cold H and sulphur ice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What phenomena does saturn have?

A

Oval-shaped storms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is uranuss rotation period?

A

17h 14m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is unique about Uranus’s rotation?

A

Retrograde motion
Sideways tilted axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is Uranus’s atmosphere made up of?

A

H, He, Water, ammonia, methane ices, trace hydrocarbons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are Uranus’s rings made of?

A

Extremely dark particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is Neptunes rotation period?

A

16.1h

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is Neptunes atmosphere made up of?

A

H,He,traces hydrocarbons and N

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What phenomena occur on Neptune?

A

Active and visible weather patterns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Why can’t the gas giants support liquid water?

A

Too cold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where are all the gas giants found?

A

Outside the circumstellar habitable zone
>2 AU

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How many moons does Jupiter have?

A

67

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

How many moons does Saturn have?

A

62

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

How many moons does Neptune have?

A

14

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

How many moons does Uranus have?

A

27

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the roche limit?

A

Smallest distance at which a moon can orbit without being torn apart by gravitational forces of the planet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What pulls apart a moon if its too close to a planet?

A

Tidal forces

24
Q

What is the largest moon in the solar system?

A

Ganymede

25
Q

What moon has more than 400 active volcanoes?

A

Io

26
Q

What is the largest moon of Saturn?

A

Titan

27
Q

What are the densities of moons like compared to Earth?

A

Significantly lower due to large amounts of ice which is low in density

28
Q

What was the Pioneer 11 flyby of Saturn?

A

1979
Flew within 20,000km
Low resolution images
Found temp of titan to be 250K

29
Q

What was the voyager 1 and flybys of Saturn?

A

First high res images of planet and moons
Found that Titans atmosphere was impenetrable
1980s

30
Q

What was Cassini-Huygens mission?

A

Orbit around Saturn
Two Titan flybys

31
Q

What makes Titan unique in the solar system?

A

Only satellite with dense atmosphere and evidence of surface liquid

32
Q

When was Titan discovered

A

1933

33
Q

What is Titans diameter?

A

5000km

34
Q

What is Titans surface gravity?

A

14% Earth

35
Q

What is Titans surface temp?

A

-180c

36
Q

What is Titans atmosphere made of and its pressure?

A

N, methane
Pressure 150% that of Earth

37
Q

What are the energy sources on Titan that could have warmed it?

A

Green house effect from thick atmosphere
Tidal effects leading to plate tectonics and volcanic activity

38
Q

When was the atmospheric composition determined?

A

1982

39
Q

What were the voyager results for the atmosphere and surface liquid?

A

No greenhouse effect
Surface temperature to low for liquid water

40
Q

What did voyager find out about Titans density?

A

1.88 g/cm3
Must contain a substantial amount of lighter material

41
Q

What can ice form from?

A

Water, co2, N, Methane, ammonia

42
Q

Why is methane being detected in Titans atmosphere surprising?

A

Energy of sun should have converted all traces into more complex hydrocarbons

43
Q

What does the presence of methane in the atmosphere indicate?

A

It is being constantly replenished by evaporation from the surface
Released from the interior

44
Q

What is the methane cycle on Titan?

A

CH4 in lakes and oceans
Evaporates and UV light breaks it apart
Components recombine into other hydrocarbons and condense into liquid and rain down

45
Q

What is proposed as the lake/seas on Titan?

A

Ethane from reactions in the atmosphere

46
Q

Why is life unlikely on Titan?

A

Too cold so liquid water
Short supply of biogenically components

47
Q

What were Cassini/Huygens Mission?

A

1997
Land probe on Titan

48
Q

What did Cassini/Huygens observe in Titans atmosphere?

A

Thin detached haze layer that floated above main atmospheric haze

49
Q

What happens in the outer layer of Titan?

A

Higher than 600km where UV breaks down methane and N to produce more complex molecules.

50
Q

What happens in lower haze layer?

A

Small particles from outer layer collide to form larger particles that fall down to maintain lower main haze

51
Q

When was the Huygens probe released?

A

2004
Sending data during its descent

52
Q

What was observed at 8km by the probe?

A

Branching dark channels
Carved by liquid methane/ethane
Icy hills of 100m

53
Q

What was observed on the surface by the probe?

A

Small objects - probably water ice
Evidence of erosion at base of rocks

54
Q

What did probe find compared to Cassini orbiter?

A

Probe - no liquids in descent region
Orbiter - lakes in north polar region

55
Q

What did Cassinis results conclude?

A
  • Likely subsurface ocean 60 miles down
  • Moons crust has moved over time - 30km
  • Bulges in the crust indicating liquid beneath frozen surface
56
Q

How is Titans landscape similar to Earth?

A

Lakes, dunes, rain

57
Q

Who discovered Titan?

A

Huygens 1655

58
Q

What was the first target of Cassini?

A

Phoebe moon

Life in the Cosmos (18 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions