2 ms·

Part of the problem is that you need to decelerate at the end. Maybe it's possible to use a gravity assist to decelerate from 0.1c inside the destination sola

Part of the problem is that you need to decelerate at the end. Maybe it's possible to use a gravity assist to decelerate from 0.1c inside the destination solar system, but otherwise you need to turn around and thrust the other way at about the half-way point.

jswhitten 13y ago
Another part of the problem is the faster you want to go, the more fuel you need, which makes your ship more massive.
danielweber 13y ago
Use a mag-sail as a "brake" to slow down at the destination star.