The distance to star A is about 8x10^3 light years. The distance to Star B is about 6x10^5 light years. Find which star is farther away. Then find by how much in standard notation.

To compare which star is farther away, we need to compare the exponents of the distances. The exponent for star A is 3, while the exponent for star B is 5. Since 5 is greater than 3, star B is farther away.

To find the difference in standard notation, we subtract the exponent of star A from the exponent of star B: 5 - 3 = 2.

Therefore, star B is farther away by a difference of 10^2, which is 100 in standard notation.