Differences between revisions 13 and 14
⇤ ← Revision 13 as of 2021-02-04 21:25:32 →
Size: 1436
Editor: KeithLofstrom
Comment:
← Revision 14 as of 2021-02-04 21:26:06 → ⇥
Size: 1434
Editor: KeithLofstrom
Comment:
Deletions are marked like this. Additions are marked like this.
Line 10: Line 10:

||<-3> Astronomical Unit<<BR>>average earth orbit radius ||<-2> 1.496e11 meters ||
Line 14: Line 12:
||<-3> Astronomical Unit<<BR>>average earth orbit radius ||<-2> 1.496e11 meters ||

Extracting Materials from Titan

Titan is (im)practically inaccessible. High delta V to get there and come back. Long round travel times.

Humans and their machines may someday occupy the asteroid belt between Mars and Jupiter. Titan's nitrogen atmosphere is a candidate source of reaction mass for thermal rockets, but Titan is a long way from Earth, and longer way (in travel time and Hohmann semimajor axis) from the asteroid belts.

Some numbers:

Earth year

3.1557e7 seconds

Solar Gravitational Constant

1.3271e20 m³/s²

Astronomical Unit
average earth orbit radius

1.496e11 meters

Planets &

Orbit

Period

Velocity

Escape

Asteroids

Radius AU

Years

km/s

km/s

circular approximation

Earth

1.0

1.0

29.79

11.2

Mars

1.524

1.881

24.13

5.03

Vesta

2.362

3.630

19.34

0.36

1 Ceres

2.769

4.608

17.91

0.51

10 Hygiea

3.142

5.568

16.76

0.21

Jupiter

5.204

11.86

13.07

59.5

Saturn

9.583

29.46

9.68

35.5

Satellites

TitanExtraction (last edited 2021-02-05 01:12:32 by KeithLofstrom)