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(meteorobs) Observation on June 6/7.
Hello observers,
I observed on June 6/7. I found that one meteor might be Tau Herculids,
however, no unusual activity has appeared.
<Observation>
DATE UT TIME Total Spor. THE SAG Lm CL Dir Obs. Method
-----------------------------------------------------------------
June/2000
06/07 14:30-15:30 60 6 4 1 1 4.8 0 Her HASTA V P (B)
Time : Observed time interval
Total: Total number of meteors
Spor.: Number of Sporadic meteors
THE : Number of Tau-Herculids meteors
(associated with comet 73P/Schwassmann-Wachmann 3)
HR : Hourly rate
Lm : Limiting magnitude of field stars
CL : Cloud cover
Dir : Observation direction ( Z = Zenith )
Obs. : Observer name shorten by IMO Code.
Meth.: Method (V = Visual, C = Counting, P = Plotting, TV = TV,
S = Single station)
<Observation Site>
HASTA (A) : Shimoyugi, hachioji, Tokyo, Japan 139d22mE , +35d38mN
On Mon, 5 Jun 2000 11:20:12 +0400
"Sergey Shanov" <sergey_shanov@mail.ru> wrote:
> This is a multi-part message in MIME format.
>
> ----------------------------------------------------------------
> Hello John Greaves, Takema Hashimoto and others observers!
>
> I do not have almost doubts, that meteoric showers Tau Herculids and
> Alpha-Bootids belong to one comet (73P/Schwassmann-Wachmann 3). Tau
> Herculids have abandoned a mother comet much earlier and this
> stream with each year weakens. All this is a corollary of variability
> of an orbit of a comet.
>
> Let's compare cometary and meteoric radiants?
>
> THE OBJECT RD(au) RA (deg) Decl (deg) Vg
> 73P/Schwassmann-Wachmann 3 (1930.06.09) 0.002 221 +47 13
> Tau Herculids (1930.06.09) 236 +42
> 73P/Schwassmann-Wachmann 3 (1979.05.31) 0,05 210 +32 12
> May Alpha-Bootids ? ? ?
> Since 1979 the orbit of this comet almost has not varied
I roughly search for the similar radiant From "Astronomical Circular"
(in Japan), the journal of NMS.
<Radinat>
Y M D R.A. Dec. N Obs.
1969 May 17/18 215 +25 5 Y.Takeuchi
21/22 215 +20.5 6 A.Kawagoe
1970 May 30/31 212 +23 4 Ogasawara
30/31 214 +19 7 Ogasawara
1971 May 30/31 215 +20 5 K.Oikawa
Clear skies, Takema.
-----------------------------------
thashi@din.or.jp Hashimoto, Takema
Minor Meteor Shower Circular(MMSC)
URL : http://www.din.or.jp/~thashi/index_E.htm
-----------------------------------
Nippon Meteor Society (NMS)
Association of Meteor Observers in and around Tokyo Area (AMOTA)
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