The geostationary satellite
that took these images remains directly over the
same location in the western Pacific Ocean at
all times. Each day, from January through December,
just as the point below the satellite turned from
day to night, an image was captured. Only the
daily weather and the angle at which sunlight
hits Earth change from frame to frame in the animation.
Watch the animation several times to observe the seasonal
changes in sunlight in both hemispheres. Move through the animation
and identify frames of the movie that represent solstices and equinoxes.