<P> At the poles themselves , the sun rises and sets only once each year on the equinox . During the six months that the sun is above the horizon , it spends the days continuously moving in circles around the observer , gradually spiralling higher and reaching its highest circuit of the sky at the summer solstice . </P>
<P> At the poles themselves , the sun rises and sets only once each year on the equinox . During the six months that the sun is above the horizon , it spends the days continuously moving in circles around the observer , gradually spiralling higher and reaching its highest circuit of the sky at the summer solstice . </P>
when does the sun set in north pole
when does the sun set in north pole
once each year on the equinox
once each year on the equinox