It sounds to me like this "moon beam" might have been a nocturnal/lunar version of what is sometimes seen in the daytime sky with the Sun; sometimes popularly called a "stairway to heaven" otherwise known as a crepuscular ray. -- joe rao The archive and Web site for our list is at http://www.meteorobs.org To stop getting all email from the 'meteorobs' lists, use our Webform: http://www.meteorobs.org/subscribe.html