这个月的月面撞击观测（英文，转载）
From: "brian_cudnik" <brian_cudnik@yahoo.com>To: lunar-impact@yahoogroups.com
Date: Wed, 21 Jul 2004 17:50:39 -0000
Subject: Impact Alert 21 July 2004
IMPACT ALERT 21 JULY 2004
=========================
A reminder of the Delta Aquarid event coming up on the 27-28 July
(next week). At least one other group plans to mobilize up to (even
more than) 60 observers for this event. An individual from the
Transient Lunar Phenomena group believes that the probability of
observing impact flashes is higher than what is indicated by the
Impact plots on the website.
His information is as follows:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Shower: SDA (Southern Delta Aquarids)
Shower starts on 2004-07-27, radiant max peak is 7-28
The max peak occures at 22:36 UT, meteor show starts at 18:35 UT +/-
2 hours. The moon sets abot 8.1 hours after sunset, so I figure about
40-43 % of the unlit side of the moon will be hit. 20 or more meteors
will be seen per hour, so again I estimate about 5-7 will strike the
moon in a given time. Also the velocity of the meteors is high, so
impacts will cause some bright (hopefully) flashes.
It is also good to remember too that the drift of the radiant is
large for this meteor shower (-16 degrees a day) so the best
observational results will come on the above given dates.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
In summary, please observer the moon as long as possible on the night
of July 27-28 (Tuesday evening). Thanks.
Brian Cudnik
Lunar Meteoritic Impact Search
Association of Lunar & Planetary Observers
Yahoo! Groups Links 如果你能够翻译成中文，或许更方便！ 很可能看懂的人也不见得能观测的了。。
所要求的设备口径较大。。 至少可以见识一下啊！你说呢？
我试试看。。
实在不行就得另请高明了。。 最初由 meteorobs 发表所要求的设备口径较大。。
请问多大？ 楼主，请求转载你的文章！
要是天气好，我们会观测，镜子应该不成问题，肉眼—65cm的这边都有:)
随便啊~~
需要的话就转。。 有关月面闪光观测的网址：http://www.lpl.arizona.edu/~rhill/alpo/lunarstuff/lunimpacts.html今年的观测图：
http://www.lpl.arizona.edu/~rhill/alpo/lunarstuff/IMPACT04.pdf
SDA的图见附件。 谢谢楼主！！：） 不必客气。。
以后常来牧夫哦~~ 呵呵，以后会常来的！
随便问一下，
你这是天文的邮件组吧，
请问怎么样才能加入这个邮件组？ 有条件的同好抓紧时间啊！
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