IMO以与铱星过境查询教程.docx

查找铱星，国际空间站ISS 以及当年的彗星等1. 登录网站/2. 第一次登录申请账号，以后登录的话点击如图 点击这一部分当中的 Registered user login ，随后参考下图 申请账号的时候会让你输入经纬度，依学校的经纬度为准，tianjin, 39.1667N, 117.1833接下来就可以查我们所需要的数据了。以查7天内的过境的铱星为例： 这一部分全部都是查找人造天体的，如果神舟上天什么的，到时候也会显示在这儿。图中第六行的Iridium就是铱星的意思！ 点击下，结果如下图 这里显示了3天内的，天津的铱星过境情况 ，各列的意思分别为时间 亮度 高度 方位 铱星编号接下来我们点击最后一个，-5等的那个，结果如下图所示 这个是卫星的轨道数据，一般来说不用考虑！ 这个是在当地地球表面的过境图查找流星雨1. 登录网站/imo/list如图所示：2. 以查找2012年10月的流星雨为例！点击上图中的2012，然后看最右边，如图所示3.然后点击Orionids(ori)(猎户座流星雨群) 这个是流星雨的参数，包括了极大值日期，最高值流量ZHR等等，具体的东西有兴趣的可以再扣扣问我 还有流星雨的辐射点：最后还有一段这场流星雨的介绍（ps:一般我都是不看的。不认识的词太多，比较懒。不愿意查。嘿嘿）Octobers waxing Moon favours the Orionid peak in 2012 too. The showers radiant, near the celestial equator, is at a useful elevation by around local midnight in either hemisphere, somewhat before in the north, so most of the world can enjoy the shower. Each return from 2006 to 2009 produced unexpectedly strong ZHRs of around 4070 on two or three consecutive dates. An earlier IMO analysis of the shower, using data from 19842001, found both the peak ZHR and r parameters varied somewhat from year to year, with the highest mean ZHR ranging from 1431 during the examined interval. In addition, a suspected 12-year periodicity in stronger returns found earlier in the 20th century appeared to have been partly confirmed. That suggested better returns in the 20082010 interval, falling thereafter towards 20142016, so perhaps with ZHRs of about 25 this year. The recent strong returns seem to have had a separate resonant cause, though nothing further is anticipated for 2012. The Orionids often provide several lesser maxima, helping activity sometimes remain roughly constant for several consecutive nights centred on the main peak. In 1993 and 1998, a submaximum about as strong as the normal peak was detected on October 17/18 from Europe, for instance. All observers should be aware of these possibilities, as circumstances are equally favourable for covering October 17/18 under dark skies this time too. Several visual subradiants had been rep