The nearest star to our solar system is 4.29 light years away. How much is this distance in terms of parasecs? How much parallax would this star (named Alpha Centauri) show when viewed from two locations of the Earth six months apart in its orbit around the Sun ?

Explanation

x = 4.29 ly = `4.29 times 9.46 times 10^(15) m`
`=(4.29 times 9.46 times 10^(15))/(3.08 times 10^(16))" par sec "=1.323` par sec
`theta=l/r=(2Au)/x`
`=(2 times 1.496 times 10..)/(4.29 times 9.46 times 10^(15))" radian "=1.512sec`