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Re: (meteorobs) Huan Meng
Hi, Kim and Jin,
Many thanks for your reply. I'm very very very sorry that my English is so
weak, that few man can understand the article clearly. And I sent the
article about the "radiant" only once to MeteorObs, IMO-News and LEO2001
mailing list, but I don't know why it was sent to MeteorObs again from
LEO2001.
It seemed that Kim and all some others couldn't understand that article.
Now I try explaining that my meaning more minute again.
From 1998, I started to observe LEO shower. In 1998 and 1999, I draw all
the meteors on some maps. Later I found that there appeared too many meteors
from northern sky, the Year 1999 especially. I thought it must be a unknown
radiant in northern sky at that moment. When I was observing LEO in 2000, I
found there were still many sporadics from the northern sky. In my report
for LEO 2000 which to IMO, I also reported the radiant in the remarks. In
the process I observed, I found the radiant might be in Auriga. (That time,
I observed by tape, no maps. But I made a mistake in my input -- I input
most sporadics from "Cygnus", but I should input "Auriga".)
From then on, I began to sort out all my maped data before, and looked for
more dara from all the country. Then I found 30 meteors came from one point.
(The coordinate of it was given in the article about " new radiant".) And
the point was just in Auriga. Besides this radiant, I found there may be
another two radiants, I gave there radiant in that article, too.
At the end of that article, it was my intention to ask more people to pay
attention at the possible radiants.
End
Can more men understand my meaning better this time?
All best wishes and Clear skies!
Huan Meng meteorobs@263dot net
----- Original Message -----
From: Kim Youmans <ksyo@pinelanddot net>
To: Lewis Gramer <meteorobs@jovian.com>; Robert Lunsford
<lunro.imo.usa@home.com>
Sent: Tuesday, February 06, 2001 7:26 AM
Subject: (meteorobs) Huan Meng
> Hey Guys,
> Just wondering if anyone has made any kind of response
> to Huan's post. He's sent the same post several times, even refers to
> Bob in his footnotes. Personally I can't quite get the gist of what
> he's trying to say about his "new radiant." Maybe perhaps some kinda
> acknowledgement would be nice by someone who might know more clearly
> about what he's saying. Looks like he's spent a lotta time on it, I'd
> hate to see a language barrier wash him out, especially if he is onto
> something.
> Just my two cents.
>
> Kim
> ***********************************************************
>
> About the New Radiants in Novembers
>
> >From 1998 to present, I observed Leonids every year. In 1998 and 1999,
> I
> maped all the meteors which I saw on sky-maps. In 2000, there
> appeared too much sporadics from northern sky in particular. I guess
> there
> must be an unknown radiant, so I found out all the data I make in other
> Novembers to study. In my surprised, in about 18 hours, totally 30
> meteors came from a same radiant (AUP). A few months later, I got some
> more
> data in that dates(from November 15th to November 19th) in very
> different
> place. I found that all the new data had meteors who were from the New
> Radiant. This is the most major radiant, besides this one, there's
> possible
> another two minor ones, too.
> For these problems above, I sorted out all the data again carefully.
> Then
> the same result was got. I named them names for facility. The data of
> all
> the new radiants is below.
>
> AUP
> Active : November 16-20;
> Maximum: November 17/18 (or later soon, it can last a few days);
> ZHR = 20 (between 5 and 60, it's most possible to be 10 to 25);
> Radiant: Alpha=76 deg; Delta=+36 deg. (Comprehensive result, to max.);
>
> V = unknown (about 60 km/s, perhaps);
> r = unknown (2.5, tentative);
> Remarks: Alpha=70 deg; Delta=+35 deg; (Huan Meng,1998 Nov. 16th/17th)
> Alpha=80 deg; Delta=+37 deg; (Huaiming Sun, 1999 Nov.
> 15th/16th)
> Alpha=75 deg; Delta=+43 deg; (Huan Meng, 1999 Nov. 17th/18th)
>
> Alpha=74 deg; Delta=+42 deg; (Sixiaoxiao Ning, 1999 Nov.
> 17th/18th)
> Alpha=73 deg; Delta=+45 deg; (Xuefei Gong, 1999 Nov.
> 17th/18th)
> AUP: Aurigids-Perseids.
> CAC
> Active : unknown;
> Maximum: unknown;
> ZHR = unknown (between 1 and 10, perhaps);
> Radiant: Alpha=85 deg; Delta=+74 deg. (Comprehensive result, to Nov.
> 17/18);
> V = unknown;
> r = unknown;
> Remarks: CAC: Camelopardalids-Cepheids.
> OPS:
> Active : unknown;
> Maximum: unknown;
> ZHR = unknown (between 1 and 5, perhaps);
> Radiant: Alpha=11 deg; Delta=+10 deg. (Comprehensive result, to Nov.
> 17/18);
> V = unknown;
> r = unknown;
> Remarks: OPS: Omega-Piscids.
>
> In 2000, I observed the Leonids again. This time I make a tape record,
> and
> make no maps. But the number of spordics was still too much. In the
> tape, I
> said: There seemed to be a new radiant in the area between Auriga and
> Perseus. Attention: The time I knew the coordinate of the new radiant is
> one
> and half months later than the time I observed Leonids 2000.
> After all the work, I found there may be another problem-- The Radiant
>
> Opposite to the Sun. The radius of it should be very large. Jin Zhu from
>
> Beijing Astronomical Observatory told me that the radius of it could
> reach
> more than 10 degrees. There the new radiant maybe attached to
> it. But the area of the Opposite Radiant spread to the east, but the new
>
> radiant is to the northwest. The other reason, if we labeled all of them
>
> into NTA or STA, we'd find the ZHR of it will be much higher than
> normality.
>
> Then I looked up other helpful visual data in Visual Meteor Database,
> but
> found none. That's because when the Leonids were shown, almost all the
> observers recorded ONLY LEO, but didn't record others as carefully as
> LEO,
> they even mixed all the meteors which wasn't LEO into SPO, and didn't
> pay
> attention to the source of that kind of meteors!
> The work to make sure the new radiant is now finished. I used totally
> 4
> slights of data to make sure the coordinate, and 5 to make sure the ZHR.
>
> I think we should check out the showers result in this and next years
> again to know more about them. Call for more observation at different
> places
> in this and next years. It will be very important.
>
> Endnotes
> [1]Robert Lunsford, "IMO-news", Meteor Activity Outlook for November
> 3-9,
> 2000, (2000 Nov. 2).
> [2]Robert Lunsford, "IMO-news", Meteor Activity Outlook for November
> 17-23,
> 2000, (2000 Nov. 15).
> [3]Huan Meng, "BBS SMTH Tsinghua, Board Astronomy", [Meteor] the
> Conclusion
> of the New Radiants, (2000 Dec. 6), 6524.
> [4]Huan Meng, "BBS SMTH Tsinghua, Board Astronomy", The New Radiant of
> Meteor Had Made Sure, (2001 Jan. 1), 6935.
>
>
>
>
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