(meteorobs) Observation June 24/25 2006
Pierre Martin
dob14.5 at sympatico.ca
Sun Jun 25 23:30:09 EDT 2006
Hi,
Last night, I took advantage of the nice weather and enjoyed some
early morning meteor observing at the Winchester bog site, south of
Ottawa. About half a dozen observers were still there with their
telescopes when I arrived. The skies were not so transparent as
usual, but it was a very comfortable night. The temperature was just
cool enough to keep from being eaten alive by the mosquitoes,
although there was still a few.
No June Bootids were seen, but overall meteor activity was quite
productive with 13 seen in just over one hour teff. The highlight
was a beautiful antihelion that slowly crawled 30 degrees straight up
across Cygnus. It had a distinct yellow-orange tint.
Clear skies,
Pierre Martin
Ottawa, Ontario
DATE: June 24/25 2006
BEGIN: 0530 UT (0130 EDT) END: 0650 UT (0250 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -75.49 West; Lat: 45.08 North Elevation: 300 ft
City & Province: Winchester, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, plotting & cord align
-----------------------------------------------------------------------
OBSERVED SHOWERS:________________________________________radiant
position
JBO (June Bootids)__________________________14:52 +48
ANT (Antihelion)____________________________19:04 -22
SPO (sporadics)
-----------------------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)_FIELD____Teff__LM_____SPO_ANT_JBO
0530-0650__1836+15__1.23__6.20____11__2___0 = 13
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 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
_______0__+1__+2__+3__+4__+5______AVE
ANT____0___1___0___1___0___0_____+2.00
SPO____1___1___2___1___4___2_____+3.09
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): None
F = 1.00
------------------------
Dead time: 7.5 min (breaks and plots)
Breaks (UT): 5:37-39, 6:47-51, 6:57 (30sec)
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