(meteorobs) Observation June 23/24 2009

[Pierre Martin]

Hi all,

Last month, I had the opportunity to enjoy a night of observing under  
a dark, pristine sky.  Rates were fairly typical (with 11 meteors) but  
there was a few nice meteors.  The best was a long mag -3 meteor that  
flared in the southern sky.  It was almost pure white (Taurid-like).   
It wasn't until later (when I reviewed the plots) that I realized how  
well it lined up with the North June Aquilid radiant (from the IMO's  
video database).

Lets hope for clear skies on summer's increasing meteor activity :)

Clear skies,

Pierre Martin
Ottawa, Ontario



DATE: June 23/24 2009
BEGIN: 05:30 UT (01:30 EDT) END: 07:10 UT (03:10 EDT)
OBSERVER: Pierre Martin (MARPI)
Long: -77 15' West; Lat: 45 1' North Elevation: 800 ft
City & Province: Irvine Lake Airstrip (near Bon Echo Park), Ontario,  
CANADA
RECORDING METHOD: talking clock/tape recorder, plotting
----------------------------------------------------------

OBSERVED SHOWERS:_______________________________radiant position
JBO (June Bootids)_______________________________14:44 +49
ANT (Antihelion)_________________________________18:48 -23
NZC (North June Aquilid) (IMO video database)____20:00 -08
SPO (sporadics)
----------------------------------------------------------

OBSERVING PERIODS: 0 = none seen; / = shower not observed

PERIOD(UT)____FIELD_______Teff____F______LM____SPO_ANT_JBO_NZC

05:30-07:10___19:34 +05___1.58___1.00___6.86____7___3___0___1

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
_____-3__-2__-1___0__+1__+2__+3__+4__+5______AVE

SPO___0___0___0___0___2___2___1___1___1_____+2.57
ANT___0___0___0___0___0___0___0___1___1_____+4.50
NZC___1___0___0___0___0___0___0___0___0_____-3.00

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  
(IMO definition). The above table contains the magnitudes from all  
observed meteors, and the average (last column) for showers.
------------------------

SKY OBSCURED (FOV) (UT): None

------------------------

Dead time: 5 min (for plotting)

Breaks (UT): none