how to determine the exact distance the Earth is from Alpha Centauri

Question

jhaseker · Answer

We cant get exact but redshift and standard candles help out

jhaseker · Answer

I study astronomy and questions like that we really cant get exact but we have tools for it

ufo · Answer

By using stellar parallax, which measures the tiny apparent shift of the star against background stars as Earth orbits the Sun, then applying trigonometry to calculate the distance from this angle and Earth's known orbital radius

jhaseker · Answer

yeah that's one of the most effective methods but there is still a big gap to get exact

ufo · Answer

@jhaseker wrote:

yeah that's one of the most effective methods but there is still a big gap to get exact

How is there a big gap? I thought this was the most common way?

jhaseker · Answer

yeah its pretty useful but we still don't have the tech to get precise

ufo · Answer

@jhaseker wrote:

yeah its pretty useful but we still don't have the tech to get precise

Ah, makes sense