The nearest star to our solar system is 4.29 light years away. How mcuh is this distance in terms of par sec ? How mcuh parallax would this star show when viewed from two locations of the earth six months apart in its orbit around the sun?

Explanation

`x = 4.29 ly = 4.29xx9.46xx10^(15)m = (4.29xx9.46x10^(15))/(3.08xx10^(16)) par sec = 1.323 par sec`
`theta = (I)/(r ) = (2AU)/(x) = (2xx1.496xx10^(11))/(4.29xx9.46xx10^(15)) radian = 1.512sec`