问天者
发表于 2005-5-28 09:06
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来自: 中国–四川–成都 教育网/成都理工大学教育网
双影凌木好象没人提呢?是我的消息不够准确,还是中国看不到?
“5月30日晚上10:45的双影凌木.当木卫在木星的表面经过,我们称之为木卫凌木,而双影凌木,则比简单的凌木更为有趣,主因是这次在木星表面经过的,不再是木卫,反而是木卫的影子,在相对浅色的木星表面经过,这样的反差,当然较单纯的凌木更加明显.今年的双影凌木主要集中在5、6月. ”
Jupiter "double shadow" events for 2001 to 2010
Following are times when two (or, in one case, three) shadows will appear on Jupiter simultaneously. All times are in Universal Time (UT).
For each event, the letters for the satellites involved (I=Io, E=Europa, G=Ganymede, C=Callisto) are given, along with the time the "double" (or triple) event begins. For example, on 8 January 2001 at 3:13, Io and Ganymede were both casting shadows on Jupiter.
We get one "triple event", on 28 March 2004. The last such event was on 11 November 1997. Click here for more info on triple-shadow events, and for the reason there can never be a no four-shadow event.
IE 16 May 2005 10:48
IE 19 May 2005 23:46
IE 23 May 2005 12:43
IE 27 May 2005 1:40
IE 30 May 2005 14:37
IE 3 Jun 2005 3:35
IE 6 Jun 2005 16:32
IG 8 Jun 2005 11:01
IE 10 Jun 2005 5:29
IE 13 Jun 2005 18:39
IG 15 Jun 2005 14:33
IE 17 Jun 2005 7:58
IE 20 Jun 2005 21:17
IE 24 Jun 2005 10:35
IE 27 Jun 2005 23:54
IE 1 Jul 2005 13:13 |
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