A Colorful Lunar Corona
What are those colorful rings around the Moon?
Rings like this will sometimes appear when the Moon is seen through thin clouds.
The effect is created
by the quantum mechanical
diffraction of light around
individual, similarly-sized water droplets in an
but mostly-transparent cloud.
Since light of different colors has
each color diffracts
Lunar Coronae are one of the few purely
color effects that can be
with the unaided eye.
featured lunar corona was captured around a
on June 2 from
that form around the Sun are typically harder to see because
of the Sun's great brightness.
Philae lander phones home!
Authors & editors:
NASA Web Site Statements, Warnings,
NASA Official: Jay Norris.
A service of:
& Michigan Tech. U.