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发表于 2006-8-2 15:39 | 查看: 3375| 回复: 5来自: 广东省广州市白云区 电信
Good news...
As mentioned in the last news item, the SWAN instrument on-board SOHO recently discovered it eighth comet. The good news is that this comet will definitely be crossing both LASCO C3 and C2! Unfortunately, the comet is remaining relatively faint (about mag 9 as of late-July, 2006), and will not reach perihelion (closest approach to the Sun) until a few weeks after it has left the LASCO field of view, so we are quite confident that this will not be a sensational comet transit. However, even at its current brightness it should show up in the images.
So, where and when will it appear? Well, the below images show the approximate path of the comet through our images. (Note that subsequent alterations to the current orbit, could change these times by as much as a few hours and the positions by as much as a few pixels.)    
(The origin text is from    http://ares.nrl.navy.mil/sungrazer/index.php?p=latest_news)
C2_2006_m4_latest.gif
C3_2006_m4_latest.gif
发表于 2006-8-2 15:56 来自: 广西桂林市 电信
横穿C2、C3视场还是穿过太阳?

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发表于 2006-8-3 12:55 来自: 湖北省武汉市硚口区 电信
期待精彩表现! ^^

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发表于 2006-8-3 13:02 来自: 陕西省西安市 西安理工大学金花校区
期待...

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发表于 2006-8-3 14:20 来自: 天津市 联通
期待ing......

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发表于 2006-8-3 15:01 来自: 广东省广州市 电信
横穿C2、C3视场还是穿过太阳?

过视场,穿过时彗星不会太亮,约为9等上下。有兴趣的到MPEC上看看。

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