Continuous activity at Pegasuss early in Aug.
M.Sakaguchi observed a meteor shower at Pegasuss during July 31 - August 5. The activity was continuous about HR=3. The maximum occured about CHR=10 at August 2. Meteors are extremely bright or faint. The bright ones had a train. The speed was rapid and the color was blue. She could not observe because of the full moon during August 6 - 10. After that, she observed it again on August 11 and 12. The shower had a continuous activity, but other observers did not notice the event in Japan. I suppose that its activity may possibly be Upsiron-Pegasids.
Observer:
Mitsue Sakaguchi : SAKMI
Observation site:
Higashi-Hiroshima, Hiroshima, Japan
E:132.6 deg, N34.5 deg
Observation method:
Visual , Plotting
Observational Data:
DATE UT TIME Total spor. Peg HR CHR Lm CL Dir Obs Meth
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Jul.
31 16:45-17:45 60 17 9 1 1.0 1.3 5.9 0 Del SAKMI V
31 17:45-19:00 75 22 17 2 1.6 2.1 5.9 0 Aqr SAKMI V
Aug.
01 15:45-16:45 60 12 6 3 3.0 3.8 6.0 0 Aqr SAKMI V
02 15:00-16:00 60 24 18 4 4.0 4.4 6.3 0 Peg SAKMI V
02 16:00-16:20 20 8 6 1 - - 6.3 0 Peg SAKMI V not used
02 16:20-18:10 50 7 3 2 - - 6.3 6 Peg SAKMI V not used
02 17:10-17:50 40 15 8 4 6.0 9.4 6.3 3 Peg SAKMI V
02 17:50-18:00 50 15 10 2 2.4 2.6 6.3 0 Peg SAKMI V
03 15:30-16:00 30 8 7 1 2.0 2.9 5.7 0 Aqr SAKMI V
03 16:00-17:00 60 22 14 4 4.0 4.8 6.1 0 Peg SAKMI V
03 17:00-18:30 90 36 29 5 3.3 3.7 6.3 0 Peg SAKMI V
04 17:20-18:20 60 20 11 3 3.0 3.3 6.3 0 Peg SAKMI V
04 18:20-19:10 50 20 16 4 4.8 5.3 6.3 0 Peg SAKMI V
05 17:40-19:05 85 30 16 4 2.8 3.3 6.2 0 Peg SAKMI V
11 15:20-06:20 60 18 6 2 2.0 3.5 5.3 0 Cas SAKMI V
11 16:20-17:20 60 12 5 1 1.0 1.8 5.3 0 Cas SAKMI V
11 17:20-18:20 60 18 9 1 1.0 1.8 5.3 0 Cas SAKMI V
11 18:20-19:20 60 24 12 2 2.0 3.2 5.5 0 Cas SAKMI V
12 14:40-15:40 60 21 13 0 - - 4.2 4 Cas SAKMI V not used
Radiant
Date(UT) CONST R.A DEC N d Wt Vel Mag HR Obs. Meth.
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1998/08/01.69 Alpha -Peg 348 +15 3 2 P R 3.7 3.0 SAKMI V
1998/08/02.71 Alpha -Peg 348 +16 13 3 2 rR-R 1.9 3.5 SAKMI V Tail,Tr
1998/08/03.71 Alpha -Peg 351 +17 9 2 2 rR-R 2.0 3.0 SAKMI V
1998/08/04.75 Upsiron-Peg 352 +20 7 3 1 R 4.7 3.8 SAKMI V
1998/08/05.75 Upsiron-Peg 353 +21 4 1 P rR-R 3.0 2.8 SAKMI V
Magnitude Distribution
|Mag| -3 -2 -1 0 1 2 3 4 5 6 |Tatal| Ave |Obs.
+---+----------------------------------------+-----+-----+-----
(Aug. 2)
|Peg| 1 2 0 0 0 1 2 7 - - | 13 | 2.2 |SAKMI
|Spo| 0 0 0 1 1 1 3 2 - - | 8 | 2.5 |SAKMI
(Aug. 3)
|Peg| 0 1 0 0 2 1 1 4 1 - | 10 | 2.6 |SAKMI
|Spo| 0 1 1 1 4 1 4 2 0 - | 14 | 1.6 |SAKMI
(Aug. 4)
|Peg| 0 0 0 0 0 0 1 0 6 - | 7 | 4.7 |SAKMI
|Spo| 1 0 1 0 2 2 2 4 0 - | 12 | 2.0 |SAKMI
Time : Observed time interval
Total: Total number of meteors
Spor.: Number of Sporadic meteors
Lm : Limiting magnitude
CL : Cloud cover
Dir : Observation direction
d : Diameter (deg)
Vel : Velocity (v=Very,r=rather, S=slow, M=moderate, R=rapid)
Mag : Mean magnitude