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Rainbows usually make up less than
a semi-circle. From mountains they can be increasingly complete. Bill
Kindred of the
MMT
Observatory imaged this primary and
secondary from the observatory at the
summit of Mt. Hopkins, Arizona. The tip of the shadow of
Mt. Hopkins cast by the low sun on the distant mountains neatly marks
the antisolar point and the centre of the rainbows. Image©Bill
Kindred, shown with permission. |
