(meteorobs) Ursid and video meteors of December 21/22, 2008
Enrico Stomeo
stom at iol.it
Mon Dec 22 16:42:44 EST 2008
I observed during the night of December 21/22 from my location
near Venice. During a Teff of 10.433h, I recorded 64 meteors,
of which 31 Ursids.
In http://www.astrovenezia.net/stoen/ursid_2008_hr_stomeo.gif
is a graphic showing the activity of Ursids, computed with
URS/Teff/sin(Hrad). I find a little burst on December 22,1 UT
approximately.
This is the prospect of my observation of December 21/22:
200812 Start End Teff vLm Cf
------------------------------------------------------------------
21.828 1921-2024 1.034 4.40 1.00 Tot:4 SPO:2 URS:2
21.872 2024-2127 1.049 4.40 1.00 Tot:3 SPO:3
21.916 2127-2230 1.049 4.40 1.00 Tot:3 URS:2 *LN:1
21.959 2230-2333 1.049 4.40 1.00 Tot:8 SPO:2 URS:3 *UR:1 *CB:2
22.003 2333-0036 1.049 4.40 1.00 Tot:6 SPO:3 URS:2 *UR:1
22.047 0036-0139 1.048 4.40 1.00 Tot:8 SPO:5 *UR:2 *CB:1
22.091 0139-0242 1.046 4.30 1.00 Tot:14 SPO:2 URS:6 *UR:5 COM:1
22.134 0242-0345 1.047 3.60 1.02 Tot:9 SPO:2 URS:1 *UR:3 *CB:2 *TG:1
22.178 0345-0448 1.048 3.40 1.11 Tot:5 SPO:2 *UR:1 *CB:2
22.221 0448-0549 1.015 3.58 1.01 Tot:4 SPO:2 URS:1 *UR:1
------------------------------------------------------------------
*** UT 1921-0549 10.433 4.13 1.01 Tot:64
RADIANTS (name, radiant, max, shift, vel)
SPO: 23 Sporadics
URS: 17 Ursids-IMO 217,75 Dec.23 0.0,0.0 33
*UR: 14 Ursids 220,75 Dec.22 0.0,-0.4 33
*CB: 7 COM 167,27 Dec.25 +0.8,-0.2 65
COM: 1 Coma-Berenicids-IMO 194,17 Jan.10 +0.8,-0.3 65
*TG: 1 theta-GEM 098,31 Dec.25 +1.3,+0.2 26
*LN: 1 Lyncids 138,43 Dec.21 +1.0,-0.1 50
MAGNITUDE DISTRIBUTION
Tot : 1.5(-2) 2(-1) 12(0) 26.5(1) 22(2) mean: 1.02
SPO : 0.5(-1) 2.5(0) 11.0(1) 9.0(2) mean: 1.24
URS : 0.5(-1) 4(0) 7.5(1) 5.0(2) mean: 1.00
*UR : 1.5(-2) 0.5(-1) 1.5(0) 5.0(1) 5.5(2) mean: 0.89
*CB : 3.0(0) 2(1) 2(2) mean: 0.86
COM : 0.5(-1) 0.5(0) mean: -0.50
*TG : 0.5(0) 0.5(1) mean: 0.50
*LN : 0.5(1) 0.5(2) mean: 1.50
NOTES
Moon from 1921 UT to 1154 UT
-2m Ursid at 022759 UT
Obs: Enrico STOMEO (STOEN)
Loc: Scorze'(VE), Italy, +45.56726 -12.11395 +20 (IMO code 14083)
VideoCamera ccd: MIN38 Ob.3,8 (zenithal field 89.2x68.6) + MetRec_41
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