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(meteorobs) obs. LANMA 17-18 Oct 1999 (Ori)
Hi all!
Last night again was such a beatifull clear night. Below a table with my
data.
I counted a Lm of +6.3, very good indeed! Activity was therefore
accordingly good, in 1.72 hours effective between 2:00 and 4:00 UT
(4:00-6:00 local time) I observed 47 meteors. Of these, 11 were Orionids.
My data results in a Orionid ZHR of 8 +- 2; theoretically, it should be 8
(P. Jenniskens: A&A 287 (1994), 990-1013), so the stream is right on
schedule it seems. No particularly attractive meteors though -the best was
a +1 yellow Taurid at 2:32 UT in southern Perseus. Best Orionids were a
+2 in Aries at 3:09 UT and another +2 on the Orion-Monoceros border at 3:34
UT. I also noted 2 (out of 3 in total) +2 Leo minorids both with a
distinct greenish color.
All meteors have been plotted on a gnomonic map.
With 4 degrees C temperature was similar to yesterday night, but there
now was an additional chilling wind which made it less pleasant. At
ground level it has been freezing, since I heard an early car-owner
scraping the ice from his windscreen when I stopped.
I kept this night restricted to 2 hours because I have some things to do
these days for which I need a clear mind and thus some sleep.
Table with data below.
- Marco Langbroek
Dutch Meteor Society
Obs: Marco Langbroek LANMA
Date: 17-18 October 1999
Loc: Voorschoten, the Netherlands, 52d 07'N, 4d 28'E
UT Teff Lm Ori Tau eGem Lmi Spo total Ori ZHR
2:00-3:00 0.87 6.3 4 2 2 2 11 21 6+-3
3:00-4:00 0.85 6.3 7 2 1 1 15 26 10+-4
TOTAL 1.72 6.3 11 4 3 3 26 47 8+-2
strm/mag. 0 +1 +2 +3 +4 +5 <m>
Sporadics 0 0 4 12 5 5 3.42
Orionids 0 0 2 3 5 1 3.45
Taurids 0 1 0 0 3 0 3.25
e Geminids 0 0 0 1 2 0 3.67
Leo minorids 0 0 2 0 0 1 3.00
>>>>>>>
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