Relativity Lite

ATrip to Alpha Centauri | 31 Figure 3. At 3.11 years into the trip, two months after the first ( red ) pulse emitted by the saucer reaches Earth at 2.912 years . Figure 4. At 5.096 years into the trip, as the first ( red ) pulse emitted by the moving saucer reaches Alpha Centauri. Figure 4 shows 5.096 years into the trip, when the first ( red ) pulse sent from the moving saucer reaches Alpha Centauri. How long does it take for the second one to arrive? Just 3/4 of a year later, at 5.826 years , the orange pulse seen in figure 5, which is coincident with the Earth’s first ( red ) pulse’s arrival there. Figure 5. At 5.826 years into the trip, as the second ( orange ) pulse emitted by the moving saucer reaches Alpha Centauri, coincident with the arrival of the Earth’s first ( red ) pulse. Figure 6. At 7.28 years into the trip, as the saucer reaches Alpha Centauri.