(meteorobs) Observation September 10/11 2010

[Pierre Martin]

Hello all,

I'm now catching up on my observing reports, for the second half of  
the year ;)  September had unusually poor weather here, in general,  
but I was still able to get in two decent nights.  October and  
November were, on the other hand, much better, allowing lots of  
coverage on the dark nights surrounding the New Moon.

Going back to September, I enjoyed a terrific night during a star  
party in Algonquin Park, with pristine 7th mag skies overhead.  Most  
of the night was spent enjoying it with my 12.5" dobsonian, but I set  
aside a couple of hours towards the morning dawn to do meteor  
observing.  The session started well, but was unfortunately cut short  
with a buildup of fog moving in from the lake.  As a result, I got in  
just 45 minutes before calling it quits.  During that time, I recorded  
9 meteors, with the brightest being a mag -1 yellow September Perseid  
that shot into Taurus, leaving behind a 2 sec train.

Pierre Martin
Ottawa, Ontario


DATE:  September 10/11 2010
BEGIN: 07:15 UT (03:15 EDT) END: 08:00 UT (04:00 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -78.521 West; Lat: 45.573 North
City & Province: Mew Lake, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, plotting
----------------------------------------------------------

OBSERVED SHOWERS:_______________________________radiant position
STA (South Taurids)_____________________________00:32 (008) +04
SIC (Sept Iota Cassiopeids- IMO video data)_____02:28 (037) +66
SPE (September Epsilon Perseids)________________03:16 (049) +41
NUE (Nu Eridanids - IMO video data)_____________04:40 (070) +03

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

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

PERIOD(UT)___Teff___LM___SPO_STA_SPE_SIC_NUE

07:15-08:00__0.74___7.00__8___0___1___0___0  =  9


Note: The first column (Period UT) refers to the observed periods, in  
Universal Time. The second column (TEFF) is the effective observing  
time, it is minutes/60. The column (LM) is the average naked eye  
limiting magnitude, determined by the triangle star counts method. All  
following columns indicate the number of meteors for each shower  
observed.
------------------------

MAGNITUDE DISTRIBUTIONS:

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

SPO___0___1___0___0___2___2___3_____+3.63
SPE___1___0___0___0___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  
(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: 0.5 min (plotting)

Breaks (UT): None