TTABLE 1. JUPITER PHYSICAL DATA

Mass
Diameter
Orbit around Sun
Distance from Sun
Gravity*
Escape Velocity
Composition

317.2 times Earth
143,000 kilometers
11 years, 10 months
778 million kilometers
2.64
60 kilometers/second
Hydrogen, Helium, and Methane

TABLE 2. IO PHYSICAL DATA

Mass
Diameter
Orbit around Jupiter
Distance from Jupiter
Gravity*
Escape Velocity
Composition

1.5% of Earth
3460 kilometers
1 day, 18 hours
421,600 kilometers
.18
2.6 kilometers/second
Slfuric compounds, silicates

TABLE 3. EUROPA PHYSICAL DATA

Mass
Diameter
Orbit around Jupiter
Distance from Jupiter
Gravity*
Escape Velocity
Composition

0.8% of Earth
3130 kilometers
3 days, 13 hours
670,900 kilometers
.14
2.1 kilometers/second
Water-ice, impurities, rock

TABLE 4. MOVING IO¹ AND EUROPA²

TIME

6 hours
12 hours
24 hours

IO MOVES

4 hexes
8 hexes
16 hexes

EUROPA MOVES

3 hexes
6 hexes
12 hexes

¹ IO moves one hex every 1.5 hours (9 turns).
² Europa moves one hex every 2 hours (12 turns).

(All moons move counter clockwise)

* See optional gravity rules on p. 20 in the Expanded Game Rules