福尔摩斯彗星比太阳还大!!!
Comet Holmes Bigger Than The SunSummary
Formerly, the Sun was the largest object in the Solar System. Now, comet 17P/Holmes holds that distinction.
Spectacular outbursting comet 17P/Holmes exploded in size and brightness on October 24. It continues to expand and is now the largest single object in the Solar system, being bigger than the Sun (see Figure). The diameter of the tenuous dust atmosphere of the comet was measured at 1.4 million kilometers (0.9 million miles) on 2007 November 9 by Rachel Stevenson, Jan Kleyna and Pedro Lacerda of the University of Hawaii Institute for Astronomy. They used observations from a wide-field camera on the Canada-France-Hawaii Telescope (CFHT), one of the few professional instruments still capable of capturing the whole comet in one image. Other astronomers involved in the UH program to study the comet include Bin Yang, Nuno Peixinho and David Jewitt. The present eruption of comet Holmes was first reported on October 24 and has continued at a steady 0.5 km/sec (1100 mph) ever since. The comet is an unprecedented half a million times brighter than before the eruption began. This amazing eruption of the comet is produced by dust ejected from a tiny solid nucleus made of ice and rock, only 3.6 km (roughly 2.2 miles) in diameter.
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[ 本帖最后由 赵晋_木木 于 2007-11-11 20:24 编辑 ] 狂刷元气蛋！！！！！！！！！！！！！！！！！！！::070821_04.jpg:: 再接再厉
创造太阳系之最
写进吉尼斯世界记录
（想问一下，吉尼斯收录这些记录吗？）::070821_13.jpg:: 还真不是盖的,再接再厉,写进吉尼斯世界记录
::070821_18.jpg:: 貌似吉尼斯什么都收吧，特别是一些奇怪的东西。 HOHO，一颗蓝的，一颗黄的，美丽 酷啊酷............................. “吉尼斯世界记录”
世界指得是地球吧。 原帖由 iodblll 于 2007-11-11 13:38 发表 http://www.astronomy.com.cn/bbs/images/common/back.gif
有档次，楼主的头像也有档次～～::070821_09.jpg::
大朋友是北馆的啊 MS它还不是有记载以来最大的彗星吧 真是漂亮呀 用什么镜子才能看到这样的效果呢 ::070821_11.jpg::貌似太大了点吧! ::070821_12.jpg::::070821_12.jpg::::070821_12.jpg::
吓人！
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