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Comet ISON Grows Wings; Comet Lovejoy, a Fountain

Monday, November 18, 2013 7:02
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(Before It's News)

Comet ISON on Nov. 17 with a tail nearly 8 degrees long and small, highly condensed coma! It looks more like a jet contrail. Credit: Michael Jaeger

Comet ISON on Nov. 17 with a tail nearly 8 degrees long streaming from a small, strongly condensed coma. Click to enlarge. Credit: Michael Jaeger

Wonderful photos of Comets ISON and Lovejoy with their swollen comas and developing tails  have appeared on these pages, but recently, amateur and professional astronomers have probed deeper to discover fascinating dust structures emanating from their very cores. Most comets possess a fuzzy, starlike pseudo-nucleus glowing near the center of the coma. Hidden within this minute luminous cocoon of haze and gas lies the true comet nucleus, a dark, icy body  that typically spans from a few to 10 kilometers wide. Comet ISON’s nucleus could be as large as several kilometers and hefty enough (we hope!) to survive its close call with the sun on Nov. 28.
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© Bob King for Universe Today, 2013. |
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Post tags: coma, Comet ISON, Comet Lovejoy, dust fountain, hood, jet, nucleus

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Source: http://www.universetoday.com/106477/comet-ison-grows-wings-comet-lovejoy-a-fountain/

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