(meteorobs) 2012 Geminids
Skywayinc at aol.com
Skywayinc at aol.com
Tue Dec 11 11:06:20 EST 2012
I for one am now a little confused concerning the time of peak activity
for the 2012 Geminids.
Although most sites are promoting 0 hours on December 14 as the peak for
this year's display, this plot by Jeremie Vaubaillion clearly shows that the
best interaction between Earth and material shed by 3200 Phaethon occurs
about 24-hour later . . . at around 0 hours on December 15.
See:
_http://www.imcce.fr/langues/en/ephemerides/phenomenes/meteor/DATABASE/Geminids/BIN-tout/Noeuds-Earth2012.jpg_
(http://www.imcce.fr/langues/en/ephemerides/phenomenes/meteor/DATABASE/Geminids/BIN-tout/Noeuds-Earth2012.jpg)
Perhaps Jeremie can explain the discrepancy between his plot and the other
forecasts for peak activity?
We know, for instance, that the brighter Geminids come after the peak . .
. so perhaps what Jeremie's plot is showing are the larger
particles/nuggets that lead to a greater preponderance of brighter meteors . . . though not
necessarily higher ZHRs?
This is just a guess on my part . . .
-- joe rao
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