[Prev][Next][Index][Thread]
Re: (meteorobs) Meteor Hunt of November 4/5, 2002!
November 11, 2002
Greetings Rainer Arlt and Fellow Meteor Enthusiasts!
Thank you for the comments! While I think I am doing
better at recording the paths of meteors, I question
my accuracy at computing the duration of meteors.
Thus, that was why I was hesitant of listing such data
directly. But, if you think the information is within
safe margins of acceptance, then I will start listing
angular velocities directly in the future.
As for the obscured sky data, I am referring to my
field of view and not the whole sky. I did get that
confused before!
Long, glowing, Leonid trains!
Mark Fox
Newaygo, MI USA
--- RainerArlt <rarlt@aipdot de> wrote:
> Hi Mark and meteor observers,
>
> Many thanks for the Taurid report. It looks very
> fine, and it's just some thoughts I'd like to >
mention.
>
> > I encountered some discrepancies with the "Degrees
> > Per Sec." data and thus have declined to list it
> > in this report at least directly. I have
> > included enough information to draw rough > >
estimates.
>
> When computed from the path length and duration, the
> angular velocities are all very plausible. The
> Taurids are generally slow
>
> > GENERAL LOCATION
> > PATH (and/or START
> > # SHOWER LENGTH & END POINTS)
> >
>
-----------------------------------------------------
> > 1 NTA 30 deg. Ended near Fomalhaut (alpha
> Piscis Austrini)
> > 2 NTA? ~10 deg. Per. (Crawled up his
> outstreched leg!)
> > 3 NTA 5 deg. Headed towards Iota Aurigae.
> > 4 SPO ~3 deg. Cass.
>
> > 5 SPO (?)10+ deg. Ended in Cetus.
> > 6 NTA 8 deg. Aries
> >
>
-----------------------------------------------------
> >
> > # DURATION (SEC.)
> > 1 3
> > 2 1.5
> > 3 1.5
> > 4 0.5
> > 5 ~1 (Did not see its whole path.)
> > 6 ~1
>
> This leads to 10, 7, 3, 6, 10+, and 8 degrees/sec.
> All these velocities are relatively slow, but since
> the observation was done in the early evening, also
> the sporadics are expected to be slow in general. >
Looks consistent. You might try to estimate deg/sec >
directly without the detour via path length and >
duration.
>
> > SKY OBSCURED:
> >
> > 20% FROM: 0:33:30 UT
> > TO: 1:49:30 UT
>
> The SKY OBSCURED may be misleading. It sounds like
> an observer should have the entire sky as a field of
> view. The typical field, however, in which 98% of
> the meteors are seen is slightly larger than 100
> degrees in diameter. Only obscuration of this field
> should be noted. Could you tell whether you refer to
> the entire sky or a field of view with these 20%?
>
> Best wishes,
> Rainer
>
> The archive and Web site for our list is at
> http://www.meteorobs.org
> To stop getting all email from the 'meteorobs'
> lists, use our Webform:
> http://www.meteorobs.org/subscribe.html
__________________________________________________
Do you Yahoo!?
U2 on LAUNCH - Exclusive greatest hits videos
http://launch.yahoo.com/u2
The archive and Web site for our list is at http://www.meteorobs.org
To stop getting all email from the 'meteorobs' lists, use our Webform:
http://www.meteorobs.org/subscribe.html
Follow-Ups:
References: