|
During the night,
our Earth rotates on its axis
and causes the stationary stars
to appear to wheel overhead. In
this 90-minute exposure, taken
under the dark skies of the
Pinacate Mountains of northern
Mexico, all stars appear to
revolve about the north
celestial pole. Nearby, the
bright star Polaris—the North
Star—marks its approximate
position. |
.jpg)