Why Doesn't Earth Orbit alpha Centauri?

[Gawdzilla Sama]

Yeah Alpha Centauri is ~4.37 ly, the sun is only ~93 million miles.

My understanding is light travels 6 million miles a year. So we are about 15.5 light years from El Sol. It is also my understanding that 15 is more than 4.37. while 4.37 X 6 is less than 93.

We're eight light minutes from the Sun.