(meteorobs) Observation September 8/9 2007 (Bootland Farm)
Pierre Martin
dob14.5 at sympatico.ca
Fri Oct 12 01:34:47 EDT 2007
Here's a short hour and a half session at Bootland Farm from the
evening of September 8. It was a routine session, with just 10
meteors. Nothing really exceptional. The highlight was a second mag
yellow-green sporadic that travelled 20 degrees and flared three
times on its path.
Pierre Martin
Ottawa, Ontario
DATE: September 8/9 2007
BEGIN: 0235 UT (2235 EDT) END: 0404 UT (0004 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -76 29' West; Lat: 45 23' North Elevation: 400 ft
City & Province: Bootland Farm, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, cord align
----------------------------------------------------------
OBSERVED SHOWERS:_______________________________radiant position
ANT (Antihelions)_________________________________23:56 +01
SPE (September Perseids)__________________________03:56 +47
LYN (Lyncids)_____________________________________07:36 +56
SPO (sporadics)
----------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)___FIELD____Teff____F______LM___SPO_ANT_SPE_LYN
0235-0404___0104+61___1.48___1.11___6.38___8___1___1___0 = 10
Note: 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 not spent
looking at the sky). The 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
_______0__+1__+2__+3__+4______AVE
SPO____1___0___3___2___2_____+2.50
ANT____0___0___0___0___1_____+4.00
SPE____0___1___0___0___0_____+1.00
Note: 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) (UT): 20% clouds from 3:30-4:04
------------------------
Dead time: 0.5 min (breaks)
Breaks (UT): 2:38 (30sec)
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