(meteorobs) Possible meteor activity from the comet 46P trails

[Mikhail Maslov]

I'd like to remind that this year during the period December 10-14
some meteor activity caused by the comet 46P Wirtanen trails is possible. The
Earth will come close to the 1915, 1921, 1927, 1934, 1941, 1947 and
1954 trails of this comet. These trails are not dense, but ejection
velocities of their particles lie in the favorable area of 8.3-13.7
m/s.
Computed maximum times are the following: 14.12.2012 0:02 UT for 1927
trail, 13.12.2012 12:30 UT for 1934 trail, 12.12.2012 10:20 UT for
1941 trail and 11.12.2012 6:21 UT for 1947 trail. The trails are quite
perturbed, so accuracy of these timings are not very high and perhaps
it shows that during 10-14 December 2012 the comet 46P stream is
expected to produce some activity with radiation area around
RA=357.0°, Dec=+3.6°, Vg=8.7 km/s. This point is a bit to the east
from stars hexagon in Pisces. So far, meteors from this shower should
be extremely slow and visible mostly in the evening time almost
equally from both hemispheres.
Intensity prospects are very uncertain. It could be very roughly
estimated as several dozens meteors per hour, probably with several
peaks within 10-14 December.

Some more details and graphs can be found here:
http://feraj.narod.ru/Radiants/Predictions/46p-ids2012eng.html

Best regards, Mikhail Maslov