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Garry Dymond
登録日: 2006.11.30 記事: 6
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日時: Tue Mar 23, 2010 7:34 am 記事の件名: UA2 understand meteor shower name |
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Hi SonotaCo,
Over the pass couple of days(March19 &21,2010) I been recording some meteors, which when put through UA2 tells me that the meteors are from stream J1_A03? I can't find any information on this stream can you direct to some. Is this your classified and is it a confirmed video stream like your J5 or an unconfirmed stream like your J6? I found some information on J3 and j4 and read your article in the journal of IMO37:2(2009). Thanks for the great software! |
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SonotaCo Site Admin
登録日: 2004.08.07 記事: 12671 所在地: 139.67E 35.65N
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日時: Tue Mar 23, 2010 10:14 am 記事の件名: Re: UA2 understand meteor shower name |
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Hi Garry
Thank you for question.
Garry Dymond wrote: | Over the pass couple of days(March19 &21,2010) I been recording some meteors, which when put through UA2 tells me that the meteors are from stream J1_A03? I can't find any information on this stream can you direct to some. |
J1_A03 was the Antihelion Source in March.
Antihelion Source is not a shower but the aggregation of sporadic or indistinctive showers from anti-hellion direction.
It is used in recent IMO shower calender like http://www.imo.net/calendar/2008 .
But ... I am thinking that ANT or toroidal sources are loosing thier meaning now.
Because over all distribution of sporadic is being revealed.
And we came to know that Sources are only imaginary appearance,
and basic distributions of sporadic are almost smooth
but there are some vacant areas caused by orbit restrictions.
So I rejected all sources from our latest catalogs J5. |
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