Pass-By Destination

Round-Trip to Destination

If you wish to pass by a distant star and return to Earth, but you don't need to stop there, then a looping route is better than a straight-out-and-back route. A good course might be to head out at constant acceleration in a direction at about 45° to that of your destination. At the appropriate point, you start a long arc such that the centrifugal acceleration you experience is also equivalent to Earth's gravity. After 3/4 of a circle, you decelerate in a straight line until you arrive home.