>>8112800That's a top speed of 0.1c, and an average speed of half that (0.05 c).
Since time dilatation is negligible, it should take about 20 times as long as light does to cover the same distance.
1200 ly * 20 = 24,000
But look at your acceleration figures.
You just input a ridiculously low acceleration figure (8 micro-g's??) so you'd get 0.1c for your top speed.
Plus, this tool assumes constant, uniform acceleration/deceleration, which isn't plausible for 1200 ly.
But it should give you an idea about what's possible.
Try Epsilon Eridani, 10.5 light years out.
Say we could pull 0.5 g for a few years, maybe with a black hole drive, bussard ramjet, whatever.
It would take almost 14 years to an outside observer, but less than 8 for those on board.
One g cuts travel time down to 5 years.
That sounds far more plausible than reaching Kepler 62f.