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(meteorobs) Per. obs. LANMA 13-14 Aug 2002



Hi all,

One day late with my report on the night of August 13-14 (see table with
data below), the 'after-maximum night'. Our team (Koen, Casper, me) moved
eastward to the German-Dutch border area this night, because weather
forecasts indicated that clouds might reach the center of the Netherlands
before dawn, while the eastern half of the country had better chances for a
fully clear night. As it turned out, that was correct, so our decission to
move was right. We did enjoy a full night, and a dark night too!!!
After meeting up with Robert Haas (our multistation pattner operating a
second photographic and video station from Groesbeek) halfway on our route
(in order to exchange some photographic films and video tapes), which was
abit of a ...well....uncoordinated action (we spend some time trying to find
Robert, and he spend some time trying to find us, along the highway....), we
arrived at the observatory of Lattrop and were welcomed by Arnold Tukkers,
who would observe part of the night with us. The sky was very dark with an
impressive milky way. From the parking lot, I saw a nive bright sporadic
descend slowly and 'flickering' towards the horizon. Quite some Perseids
appeared to. We helped Casper to put some films into his camera's and then
we were off to the observing field. We started at 22:10 UTC, with Lm at
+6.9!!! Later during the night some thin low ground fog would develop over
the fields, which had the effect that the Lm dropped a few tens to 6.7-6.6.
We noted a nice number of meteors, amongst which quite some Perseids. A full
night after the maximum, the show was still very entertaining! We did not
see anything brighter than about -2/-3 however. Still, we certainly will
have some photographic hits from this night. I ended up with 224 meteors, of
which were 143 Perseids, in 3.42h effective observing time. I highly enjoyed
this very dark night!

- Marco

-------------------------
Obs: Marco Langbroek     -     LANMA
date: August 13-14, 2002
loc.: Lattrop, the Netherlands, 52d 24' 57" N, 6d 57' 58" E

UTC              Teff    Lm    Per  Aqr Cyg Cap  Spo
22:10-22:30   0.33   6.9    13     0     0     0     4
22:30-22:45   0.25   6.9     7      1     1     1     5
22:45-23:15   0.50   6.8    25     0     0     0     5
23:15-23:30   0.25   6.8    16     2     0     0     8
23:30-23:45   0.25   6.8    16     1     0     0     7
23:45-00:15   0.37   6.7    13     1     0     0     3
00:15-00:30   0.25   6.7     9      0     1     0     8
00:30-00:45   0.25   6.7     8      0     0     0     4
00:45-01:00   0.25   6.7    11     1     0     0     5
01:00-01:15   0.25   6.7    11     0     0     0     8
01:25-01:53   0.47   6.6    14     1     0     0     14

TOTAL         3.42           143    7     2      1     71     tot: 224

strm/mag           -2   -1   0   +1   +2   +3   +4   +5   +6
Per                     1    3   7    18   27   22    38   23    3
Spo                    0    0   0     3     9    20    20   14    5
Aqr                    0    0   0     0     3     2      1     1     0
Cyg                    0    0   0     0     1     1      0     0     0
Cap                    0    0   0     0     0     0     1      0     0
-----------------------------

---
Marco Langbroek                    private: marco.langbroek@wanadoodot nl
Leiden University                     work: m.langbroek@arch.leidenunivdot nl
Faculty of Archaeology
P.O. Box 9515
http://home.wanadoodot nl/marco.langbroek/
NL-2300 RA Leiden
The Netherlands

"What seest thou else
  In the dark backward and abysm of time?"

William Shakespeare: The Tempest act I scene 2
---




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