Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.
See also:ANTHELION (See also:late Gr. avOil]uos, opposite the See also:sun) , the luminous See also:ring or See also:halo sometimes seen in Alpine or polar regions surrounding the See also:shadow of the See also:head of an observer See also:cast upon a See also:bank of See also:cloud or mist. The halo diminishes in brightness from the centre outwards, and is probably due to the diffraction of See also:light. Under favourable 'conditions four concentric rings may be seen See also:round the shadow of the observer's head, the outermost, which seldom appears, having an angular See also:radius of 400. End of Article: ANTHELION (late Gr. avOil]uos, opposite the sun)Additional information and CommentsThere are no comments yet for this article.
» Add information or comments to this article.
Please link directly to this article:
Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML. Site content, images, and layout Copyright © 2006 - Net Industries, worldwide. |
|
[back] ANTEROS |
[next] ANTHEM |