a preponderance of punctuation marks (reedrover) wrote,
a preponderance of punctuation marks

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Green comet? -- not a cartoon

COMET SWAN: Last week you had to wake up at dawn for a good look at Comet Swan (C/2006 M4). This week the comet is moving into the evening sky. It's particularly easy to find after sunset on Oct. 13th and 14th. On those two nights, the handle of the Big Dipper curves toward the comet, guiding you right to it. Although Swan is too dim for the unaided eye, it is a good target for backyard telescopes. Seen through the eyepiece, the comet's head glows a pretty shade of emerald green. Why green? Visit http://spaceweather.com for the answer.

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