(meteorobs) Observation November 1/2 2010
Pierre Martin
pmartin at teksavvy.com
Fri Dec 3 01:28:33 EST 2010
Here's my report for the late evening of November 1. I was on for two
hours before local midnight under decent skies, at the Fred Lossing
Observatory site near Almonte. Present was Ron St-Martin and Sanjeev
Sivarulrasa. Temperature was +3C.
In the two hours of effective time, I saw 19 meteors (10 sporadics, 5
North Taurids, 3 South Taurids and one possible Eta Taurid as
described from Bob Lunsford's weekly meteor outlook).
Two fireballs were seen. The first was a mag -3 South Taurid at
11:49pm EDT that traced a long 30 degrees path near Jupiter. It has
no flares or wake at all... just a very smooth brightness along the
way. The second was seen just 6 minutes late... a mag -3 possible Eta
Taurid that scooted past the bright star Capella.
Pierre Martin
Ottawa, Ontario
DATE: November 1/2 2010
BEGIN: 02:00 UT (22:00 EDT) END: 04:10 UT (00:10 EDT)
OBSERVER: Pierre Martin (MARPI)
LOCATION: Long: -76 15' 50" West; Lat: 45 15' 2" North
City & Province: Almonte, Ontario, CANADA
RECORDING METHOD: talking clock/tape recorder, plotting
----------------------------------------------------------
OBSERVED SHOWERS:_______________________________radiant position
NTA (North Taurids)_____________________________03:12 (048) +21
STA (South Taurids)_____________________________03:16 (049) +12
ORI (Orionids)__________________________________06:48 (102) +16
ETT (Eta Taurids - IMO video)___________________04:04 (061) +24
BCN (Beta Cancrids - IMO video)_________________07:32 (113) -10
----------------------------------------------------------
OBSERVING PERIODS: 0 = none seen; / = shower not observed
PERIOD(UT)___Teff___LM____SPO_NTA_STA_ORI_ETT_BCN
02:00-03:05__1.02___6.45___6___3___1___/___0___/
03:05-04:10__1.04___6.48___4___2___2___/___1___/
TOTALS:______2.06_________10___5___3___/___1___/ = 19
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
_____-3__-2__-1___0__+1__+2__+3__+4__+5______AVE
SPO___0___0___0___0___2___1___1___4___2_____+3.30
NTA___0___0___0___0___0___3___0___2___0_____+2.80
STA___1___0___0___0___1___0___0___0___1_____+1.00
ETT___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: 2.5 min (breaks) + 3.81 min (plotting) = 6.31 min
Breaks (UT): 2:37-39, 3:08 (30 sec)
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