[allmendream]

As an interesting ‘homework’ assignment.

Figure out how long it would take to accelerate to 90% of the speed of light at one gravity of constant acceleration.

Then, of course as you approached your destination you would then have to decelerate at one gravity for the same amount of time.

[zeugma]

As an interesting ‘homework’ assignment.

Been there. It takes just about a year at 1G, then the same amount to decelerate. What is more interesting, is how long would it seem to take to the person on the ship to perform the entire maneuver.