An antitail is a spike projecting from a comet`s coma which seems to go towards the Sun, and thus geometrically opposite to the other tails: the ion tail and the dust tail. It`s only an optical illusion that is seen from the Earth. The antitail is formed of larger dust particles, which are less affected by the Sun`s radiation pressure and tend ......
Found on
http://en.wikipedia.org/wiki/Antitail
Part of the dust tail of a comet that seems to point, often like a spike, toward the Sun. This rare phenomenon is an illusion caused by the viewing geometry and typically occurs when Earth crosses the plane of a comet's orbit when the comet is relatively close to the Sun. Under these circumstances, ...
Found on
http://www.daviddarling.info/encyclopedia/A/antitail.html
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