(meteorobs) PERSEID METEOR SHOWER OBSERVATIONS

Robert Morgan starviewrjm at sbcglobal.net
Fri Aug 13 08:47:44 EDT 2004


DATE: 2004.08.11
BEGIN: 04:04PDT(11:04UT)
END: 05:23PDT(12:23UT)
LOCATION: LONG: 119.45d W LAT: 39.11d N
          elev: 1433m(4700ft)
SITE: CARSON CITY, NEVADA USA
NAME: ROBERT MORGAN

OBSERVED SHOWER: PER
LM: 6.0
BORTLE SCALE: 4
RECORDING METHOD: PAPER AND PENCIL

PERIOD(10 MINUTE INTERVALS)   PER
04:04-04:14PDT                 3
04:14-04:24 "                  1
04:24-04:34 "                  2
04:34-04:44 "                  4    (1 FIREBALL)
04:44-04:54 "                  1
04:54-05:04 "                  1    (FIREBALL)
05:04-05:14 "                  1
05:14-05:23 "                  0 

MAGNITUDE DISTRIBUTION:
-5   -4   -3   -2   -1   0   1   2   3   4   5   6
 0    1    1    0    3   2   0   2   1   2   1   0

COLOR DISTRIBUTION:
WHITE: 9    BLUE-WHITE: 1   ORANGE: 1   YELLOW: 2

BREAKS:  05:16-05:19PDT  (3 minutes) PERSONAL

TOTAL OBSERVATION TIME: 1hr 16min

NOTES: 1) THE -4.0 MAGNITUDE FIREBALL WAS SIGHTED AT
04:36PDT(11:36UT). IT TRAVELED SOUTH TO NORTH FOR
APPROXIMATELY 30d AT A DOWNWARD ANGLE. THERE WAS A
PERSISTENT (2 sec DURATION), TRANSLUCENT BLUE-WHITE,
WIDE TRAIN APPROXIMATELY 20d IN LENGTH. THIS METEOR
FRAGMENTED INTO SEVERAL PIECES.
       2) THE -3.0 MAGNITUDE FIREBALL WAS SIGHTED AT
04:55PDT(11:55UT). IT TRAVELED EAST TO WEST FOR 20d.
THE MAIN CORE OF THE METEOR WAS A VERY BRIGHT WHITE.
THERE WAS A SHORT DURATION (<1.0sec) TRANSLUCENT WHITE
TRAIN. THIS METEOR PRODUCED A SMALL FRAGMENTATION
FIELD.
       3) AT 04:42PDT(11:42UT) A SIMULTANEOUS PASS BY
TWO(2) METEORS WAS SIGHTED. THESE TWO(2) METEORS
TRAVELED ALMOST PARALLEL TO EACH OTHER, THOUGH ONE HAD
A N TO S PATH WHILE THE OTHER HAD A MORE NNE TO SSW
PATH. BOTH METEORS TRAVELED ABOUT 5d; BOTH WERE
MAGNITUDE -1.0; BOTH TRAVELED AT MODERATE SPEED WITH
NO VISIBLE TRAIN; NEITHER FRAGMENTED. ONE WAS WHITE IN
COLOR, THE OTHER WAS YELLOW. THERE WAS A 4d SEPARATION
BETWEEN THE TWO.
       4) NINE(9) OF THE THIRTEEN(13) METEORS SIGHTED
WERE FAST PASSES. THE OTHER FOUR(4) PASSED AT MODERATE
SPEED.

CLEAR SKIES TO ALL
R. MORGAN
 


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