It is a notable fact that the sun rises immediately over the summit of
the "Hele Stone," in a line with the axis of Stonehenge on the Summer
Solstice.
Sir Norman Lockyer and Mr. Penrose, working on astronomical grounds,
fix the date of the circle at 1680 B.C., with a possible error of 200
years on either side.
Much has been said as regards Sun Worship at Stonehenge. The exact
use to which the circle was put is at present a matter of conjecture.
(See page 57.)