(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)










More information about the Meteorobs mailing list