some facts for you and me. hihi
"A [lunar] corona quite frequently occurs when the Moon passes behind light or broken cloud. ...the most common form of the lunar corona is a disc of light which is bluish at its inner edge, changing to white further out, and intensifying to a reddish-brown outer edge. This is called the aureole, which may well have a further colored ring or rings surrounding it (normally refers to as iridescence). The corona is caused by the diffraction of moonlight by water droplets or by ice crystals in the atmosphere." - Astrophotography by HJP Arnold, pg 130.
Thursday, December 27, 2007
a lunar corona and planet mars
