御夫座流星雨快报
据最新监测，御夫座流星雨已经有不小的活动：(meteorobs) Aurigids from CA: bright, nice - but not manyMessage List
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Here's the raw deal from Fremont Peak, California, before going to
bed (it's 7:15 a.m. now :-): Three observers saw 30 to 38 Aurigids each
tonight in about 1 1/2 hours under perfect conditions. There was one
striking cluster of three within one second and close to each other,
otherwise there were often long lulls. But the Aur were nearly all
bright and had nice wakes (though no persistent trains). There was no
pronounced maxiumum at either 11:36 or 11:33 (as the latest models
said) UTC, rather here are my counts for 5-minute intervals from
11:10 to 12:20 UTC (several more Aur were seen between 10:38 and
11:10 UTC, but not counted systematically):
2 - 5 - 2 - 2 - 2 - 3 - 0 - 0 - 2 - 2 - 0 - 1 - 0 - 0 (then dawn came).
So for us the peak came early, at 11:15 UTC perhaps. And another
strange observation: In the first half of the outburst, most meteors
were high in the sky - and in the 2nd most every meteor was very low
in the sky. Certainly just a statistical fluke, right ...?
Daniel signing off from San Juan Bautista, CA, USA
Time (UT)SolarlonnINTnAURZHR2007-08-25 20:30152.1643114+-102007-08-25 21:53152.219403+-32007-08-25 22:53152.260219+-62007-08-26 00:30152.324202+-22007-08-26 01:38152.370354+-22007-08-26 02:09152.391234+-22007-08-30 04:30156.3461012+-122007-08-31 03:51157.286108+-82007-09-01 00:53158.133304+-42007-09-01 02:11158.186207+-72007-09-01 04:13158.268214+-32007-09-01 10:40158.5276670+-26
http://www.imo.net/live/alpha-aurigids2007/out/aur2007overview.png?time=1188657901 凌晨看？？？？？？？？？？？？？？？？还是明天看？？？？？？？？？::42:: 我刚才看回来,我这里月光太强烈了,根本什么都没看见
而且东边的光害还很严重 meteorobs) Aurigids quick report from Oregon Message List
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I got out nice and early at 2:30am (0930UT). We had rain showers throughout
Thursday night, so I was just happy to see clear sky. The moonlight was
pretty intense, so I chose to obstruct it behind a tree. Unfortunately, this
also brought some other trees into view, and I lived with a 20-25%
obstructed FOV throughout the morning. In retrospect, I probably could have
seen a few more bright Aurigids around the time of maximum if I had
disregarded the Moon and chose an unobstructed view toward the east. But at
least these data should be consistent.
I was absolutely skunked for the first half hour. My first meteor, 39
minutes into the watch, was a blue -3 ANT that I managed to see behind me.
It was another 13 minutes before the first Aurigid appeared (and 8 minutes
after that the first sporadic came). So I had a pretty solid baseline of
background activity :-). Aurigid rates began to pick up at 1041UT. The
activity didn't build to a sharp maximum, but rather was a series of spurts
and lulls like a major shower maximum. I had several minutes with two
Aurigids, and only one with three (1121-1122UT). No bursts of multiple
meteors. At 1126UT, there were nearly simultaneous -5 and 0 Aurigids. I
thought: "This is really going to get good." Unfortunately, it was almost
over by that time, and activity slowed to a crawl. Overall, I saw 33
Aurigids in 2.7+ hours Teff. The report below contains five-minute intervals
over the most active period.
The Aurigids were bright, with a mean magnitude of +0.5. There were 4
Aurigid fireballs of -3 or brighter, and 8 Aurigids in the negative
magnitudes. The predominant color was orange-red, although there were a
couple of blue ones and the two brightest fireballs were white. The
brightest fireball of -5 left a twisting 30-second train.
In spite of the rather low numbers, this event had a very dramatic feel to
it as I never knew what was going to happen next.
Observer: Wesley Stone (STOWE)
Location: Chiloquin, OR (42d 35m N, 121d 52m W)
Method: Counting: Watch/Tape recorder
Date: 2007 September 1
0930-1035...Teff=1.00h...F=1.33...LM=5.6...ANT 1...AUR 1...Spo 1
1037-1042...Teff=0.08h...F=1.33...LM=5.8...ANT 0...AUR 1...Spo 1
1042-1047...Teff=0.08h...F=1.33...LM=5.8...ANT 0...AUR 2...Spo 0
1047-1052...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 1...Spo 0
1052-1057...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 1...Spo 0
1057-1102...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 1...Spo 0
1102-1107...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 3...Spo 0
1107-1112...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 3...Spo 2
1112-1117...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 1...Spo 0
1117-1122...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 5...Spo 1
1122-1127...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 4...Spo 0
1127-1132...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 1...Spo 0
1132-1137...Teff=0.08h...F=1.25...LM=5.8...ANT 0...AUR 3...Spo 0
1137-1142...Teff=0.08h...F=1.25...LM=5.9...ANT 0...AUR 0...Spo 1
1142-1147...Teff=0.08h...F=1.25...LM=5.9...ANT 0...AUR 3...Spo 0
1147-1152...Teff=0.08h...F=1.25...LM=5.9...ANT 0...AUR 0...Spo 1
1152-1157...Teff=0.08h...F=1.25...LM=5.9...ANT 0...AUR 1...Spo 1
1157-1202...Teff=0.08h...F=1.25...LM=5.9...ANT 0...AUR 1...Spo 0
1202-1224...Teff=0.37h...F=1.25...LM=5.7...ANT 1...AUR 1...Spo 1
Global Magnitude Distribuitions (0930-1224)
ANT (N=2) -3(1), +2(1)
AUR (N=33) -5(1), -4(1), -3(2), -2(1), -1(3), 0(6), +1(7), +2(7), +3(4),
+4(1)
Spo (N=9) +1(2), +2(4), +3(2), +4(1)
--
Wes Stone
Chiloquin, OR Time (UT) Solarlon nINT nAUR ZHR
2007-08-25 20:30 152.164 3 1 14 +-10
2007-08-25 21:53 152.219 4 0 3 +-3
2007-08-25 22:53 152.260 2 1 9 +-6
2007-08-26 00:30 152.324 2 0 2 +-2
2007-08-26 01:38 152.370 3 5 4 +-2
2007-08-26 02:09 152.391 2 3 4 +-2
2007-08-30 04:30 156.346 1 0 12 +-12
2007-08-31 03:51 157.286 1 0 8 +-8
2007-09-01 00:53 158.133 3 0 4 +-4
2007-09-01 02:11 158.186 2 0 7 +-7
2007-09-01 04:13 158.268 2 1 4 +-3
2007-09-01 08:30 158.440 2 0 3 +-3
2007-09-01 10:33 158.523 8 5 10 +-4
2007-09-01 11:06 158.545 2 9 78 +-25
2007-09-01 11:18 158.553 2 14 111 +-29
2007-09-01 11:36 158.565 2 10 81 +-24
2007-09-01 11:55 158.578 3 4 22 +-10 这是邮件组里的？？？居然到140了。。。。 从初步观测数据来看，这次预报精确到难以想象：
根据Jenniskens和Vaubaillon的预测，极大将发生在北京时间9月1日19时36分，误差为20分钟左右
根据理论推演，这次遭遇的条件和御夫座流星雨1935年、1986年和1994年爆发的条件差不多。这三次爆发的ZHR都达到约200，Jenniskens估计这次的ZHR也在200上下，而Vaubaillon认为至多100。
时间、流量完全一致::070821_15.jpg:: ::070821_02.jpg:: 这是什么东东,还不会看,晕啊! Message: 1Date: Sat, 1 Sep 2007 10:03:17 -0400 (EDT)From: meteors@eclipse.netSubject: (meteorobs) Aurigids and meteorobs this AMTo: meteorobs@meteorobs.orgMessage-ID: <3189.76.98.190.23.1188655397.squirrel@webmail.netcarrier.com>Content-Type: text/plain;charset=iso-8859-1 Just a quick report, full one later. I was out from 1 AM till twilight this morning (0509-0911 UT) with LMsomewhere between 4 and 5, hopefully some stars I noted and the LM areacounts I did will help narrow the range.1 Hour Aurigid totals were 0,1,1, and 2 if my sleepy memory serves me well. Regarding meteorobs, it's interesting.One of the 2 accounts I'm subsribed from has received all the posts, theother hasn't.I've seen this behaviour before, it usually catches up later. Wayne in NJ 那有拍到的没啊？？？？？？？？？？？？？？？ 烏云密布的……可惜了！ 祝贺国外同好！期待猎户。。。::070821_18.jpg:: 现在光害小了,但是仍然没有可见的大流星
20079月2日1:09 都睡觉吧
流量回落很快
基本上看不到了 原帖由 suhuasky 于 2007-9-2 00:27 发表 http://www.astronomy.com.cn/bbs/images/common/back.gif
从初步观测数据来看，这次预报精确到难以想象：
根据Jenniskens和Vaubaillon的预测，极大将发生在北京时间9月1日19时36分，误差为20分钟左右
根据理论推演，这次遭遇的条件和御夫座流星雨1935年、1986年和1994年爆发的条件差 ...
是啊，这次准确了很多，而且流量也不差 http://www.spaceweather.com/meteors/aurigids/01sep07/peterson1_anim.gif
METEOR FLURRY: Congratulations to Peter Jenniskens of the SETI Institute and colleagues who predicted this morning's Aurigid meteor shower. It materialized right on time in a sharp peak shortly before 1130 UT or 4:30 am PDT, Saturday, Sept. 1st. In Guffey, Colorado, Chris Peterson video-recorded this spectacular fireball: 有强月光干扰都这么大的流量，这个峰值的确不小。 实际极大正好在预报误差之内。。。。::070821_15.jpg:: 晕！！::070821_17.jpg::
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