22日凌晨的猎户座流星雨
极限星等3。5的情况下看到十来颗,其中5秒内连续出现3颗,爽死啦~~Activity profileZHRmax = 36 based on 709 reported Orionids, assuming population index r = 2.0.
ZHR (Zenithal Hourly Rate) is the number of meteors an observer would see under a dark sky with the radiant of the shower in zenith.
http://www.arm.ac.uk/~gba/imo/orionids2009/out/ori2009overview.png?time=1256165402
Time (UTC)SolarlonnINTnORIZHR2009-10-13 01:03199.7001011±112009-10-13 21:03200.526963±12009-10-14 07:09200.9429155±12009-10-15 02:51201.756563±12009-10-17 01:30203.68471610±22009-10-18 03:36204.76424399±12009-10-19 04:15205.78465118±22009-10-19 11:59206.104145718±22009-10-19 23:21206.57586228±42009-10-20 03:17206.738119127±32009-10-20 11:33207.080125124±32009-10-20 17:42207.33599536±42009-10-20 23:00207.55485632±42009-10-21 03:59207.76155125±32009-10-21 09:04207.972135631±42009-10-21 13:10208.14255734±4
Time is the middle of the interval in Universal Time (UTC), Solarlon is the position of the earth relative to the sun (equinox J2000.0), nINT is the number of reported observing periods and nORI is the reported number of Orionids.
ZHR = (1 + sum nORI) / sum(Teff/C) where Teff is the effective observing time and C is the total correction for limiting magnitude, clouds and zenith correction 1/sin(hR).
Observer statisticsData has been received from 27 observers in 13 countries. Thank you for your efforts!
Spatial distribution of observersNote: click on the map for an interactive version.
http://www.arm.ac.uk/~gba/imo/orionids2009/out/world_small.png 本来准备停当,打算熬个半夜的,结果白天还是万里无云,晚上就满天云了,希望狮子不要这样。 这几天一到晚上就阴天,郁闷!!!! 昨晚就从阳台看了半个小时 啥也没碰上 就收工了
等下个月的狮子 流星雨吧! 天气不好,下去看了一个钟头,没有看到,就回去睡觉了 这几天一到晚上就阴天,郁闷!!!!
handongyue 发表于 2009-10-22 11:06 http://www.astronomy.com.cn/bbs/images/common/back.gif
有同感::070821_20.jpg:: 我只看了21日凌晨的了,今天凌晨的没有看,楼主幸福啊。。。。期待狮子座流星雨。。。 我两天都有去。。。等的时间不长。。。。看到4.5颗。。。晚上好冷。。。。衣服没穿足。。。。。 楼主可知道台湾的观测者是谁? 晚上8点以前天气出奇的晴朗,早睡,做半夜观测的准备。半夜起来一看只有昂星团在头顶了,依稀几颗星星,再看就连这几颗星也模糊起来了。很是郁闷,只好放弃观看流星雨了。这几年这样的经历有几次了,开始怀疑流星雨影响天气? 本来准备停当,打算熬个半夜的,结果白天还是万里无云,晚上就满天云了,希望狮子不要这样。
phenix 发表于 2009-10-22 08:11 http://www.astronomy.com.cn/bbs/images/common/back.gif
记得看晴天钟预报!非常准的! 问一下lz的图哪里来的?我也想去看看 问一下lz的图哪里来的?我也想去看看
wuyonglin2004 发表于 2009-10-23 03:32 http://www.astronomy.com.cn/bbs/images/common/back.gif
http://www.arm.ac.uk/~gba/imo/orionids2009/
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