Comet C/2006 M4 SWAN (τελική σύνθεση)

Από KC

Οκτώβριος 29, 2006
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spaceweather.com report on 26.10.2006:

Only a few days ago you needed a telescope to see Comet Swan. Not anymore. The comet has suddenly brightened to naked eye visibility. The cause of the outburst: Probably, a crack has opened in the comet's nucleus, exposing a fresh vein of volatile ice to vaporizing sunlight.