### Calculating Travel Times

Posted:

**Tue 04 May 2021, 01:18**In page 138 of the rulebook, it says:

How do we tell the distance in AU between planets? It feels like this calculation is missing a step.CALCULATING TRAVEL TIMES

Interplanetary distances are measured in Astronomical

Units (AU). The distance between two planets is calculated

like this:

◆◆ SHORTEST DISTANCE: The difference between the planets’

individual distances from the sun.

◆◆ FARTHEST DISTANCE: The sum of the planets’ individual

distances from the sun.

◆◆ Divide the distance in AU by the spaceship’s speed to get

the travel time (in number of days).