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(meteorobs) Observation October 22/23 2003
Hi all,
Here's the details for the half hour break between the clouds I was
able to get for some meteor observing last Thursday morning (October
22/23), while at the Frozen Banana star party near North Bay. At about
2:35am EDT the overcast sky slowly started to break up. For the next
15 minutes in roughly 50-75% cloud cover I casually saw 5 Orionids, and
a few sporadics. Then at 2:50am EDT, the skies were 90% clear so I
signed-on for meteor recording. There were a few passing clouds but
the limiting magnitude still managed to reach 6.45.
So for this very brief session, I recorded seven meteors (three
Orionids and four sporadics). The only notable highlight that comes to
mind was a mag 1 yellowish Orionid that left a short wake behind its
path.
Clear skies!
Pierre Martin
Ottawa, Ontario
DATE: October 22/23 2003
BEGIN: 0650 UT (0250 EDT) END: 0717 UT (0317 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -79.368 West; Lat: 46.081 North Elevation: 50m
City & Province: Powassan, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, cord align
-----------------------------------------------------------------------
OBSERVED SHOWERS:_____________________________________radiant position
ORI (Orionids)_________________________________0616 +16 ANT (North
and South Taurids combined)_________0224 +15
DAU (Delta Aurigids)___________________________0652 +50
EGE (Epsilon Geminids)_________________________0708 +27
LMI (Leo Minorids)_____________________________1048 +37
NPX (sporadics from the north apex)____________0744 +36
SPX (sporadics from the south apex)____________0744 +06
SPO (random sporadics)
-----------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)__FIELD___Teff__F_____LM_____ORI_DAU_EGE_LMI_ANT_NPX_SPX_SPO
0650-0717__0620+14__0.45__1.08__6.45____3___0___0___0___0___1___0___3
= 7
The first column (Period UT) refers to observing periods broken down as
close as possible to one hour of true observing, in Universal Time. The
second column (Field) is the area in in the sky where I centered my
field of view. The third column (TEFF) represents effective observing
time (corrected for breaks or any time I did not spent looking at the
sky). The fourth column (F) is a value for obstructions in the field of
view such as clouds (1.00 = 100% clear skies). The next column (LM) is
the average naked eye limiting magnitude, determined by triangle star
counts. All following columns indicate the number of meteors for each
shower observed.
------------------------
MAGNITUDE DISTRIBUTIONS:
SHOWER
____+1__+2__+3__+4__+5_____AVE
SPO__0___0___0___1___3____+4.75
ORI__1___1___1___0___0____+2.00
Note: Magnitude scale is to determine the brightness of sky objects.
Magnitude -8 is comparable to a quarter moon, magnitude -4 with the
planet Venus, magnitude -1 with the brightest star Sirius, magnitude +2
to +3 with most average naked eye stars and magnitude +6 to +7 are the
faintest stars the naked eye can see under typical dark conditions. A
meteor of at least magnitude -3 is considered a fireball. The above
table contains the magnitudes from all observed meteors, and the
average (last column) for showers.
------------------------
SKY OBSCURED (FOV): 10% clouds from 0650-0700 UT, 15% clouds from
0711-0717 UT
------------------------
Dead time: None
Breaks (UT): None
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