i n c o n s t a n t
m o o n
O swear not by the moon, th'inconstant moon
That monthly changes in her circled orb,
Lest that thy love prove likewise variable.

The Moon, as Shakespeare suggests in Romeo and Juliet, is fickle. Its complex orbit moves it swiftly across a wide tract of the night and day skies, changing its appearance continually in both bold and subtle ways.
As it waxes and wanes its features alter dramatically - rugged heights can turn to pale ghosts, tiny blemishes can become brilliant beacons, and thin beams can briefly shine across the lunar twilight.
With Inconstant Moon as your nightly guide you can explore Earth's ever-changing companion, and discover some of its strange phenomena. Witness the disappearing act of the massive crater Maginus, learn how the interior of Curtius may hold the dark key to the Moon's past, and see what makes Wargentin such a bizarre freak of nature.

Start exploring Inconstant Moon using the links in and beneath the calendar, or use the launch pad below to tour the site or jump directly to the part you want to visit.
site tourlunar diary
site searchphase calculator
cyclopedia selenicaselenographia atlas
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