<Li> 42 Draconis is the closest star to the northern pole of Venus . Eta1 Doradus is the closest to the south pole . </Li> <Li> Delta Doradus is the south pole star of the Moon . </Li> <Li> Kappa Velorum is only a couple of degrees from the south Celestial pole of Mars . The top two stars in the Northern Cross, Sadr and Deneb, point to the north Celestial pole of Mars . </Li> <Li> The north pole of Jupiter is a little over two degrees away from Zeta Draconis, while its south pole is HD 40455, a relatively faint (magnitude 6.63) star in Dorado . </Li>

Who used the polar north star to determine latitude