Meteor Shower #172

Overview

# Radiants # Meteors Median Rank MDC # Abbrev. Name Status
6 607 23 225 SOR sigma-Orionids w

Activity Interval

Source Begin Mean Max End
Sol. Long.
[°]
Date Sol. Long.
[°]
Date Sol. Long.
[°]
Date Sol. Long.
[°]
Date
#172 185 Sep 28 188 Oct 01 189 Oct 02 190 Oct 03
SOR - - 192 Oct 05 - - - -

Position and Velocity

Source Equatorial Position Ecliptical Position Velocity
Mean @ Max Mean @ Max Mean @ Max
RA
[°]
Drift RA
[°/°]
Decl.
[°]
Drift DE
[°/°]
RA
[°]
Decl.
[°]
Long.
[°]
Drift LON
[°/°]
Lat.
[°]
Drift LAT
[°/°]
Long.
[°]
Lat.
[°]
Vinf
[km/s]
Vinf
[km/s]
#172 92.5 -0.2 4.6 1.4 94.2 3.5 92.6 -0.2 -18.8 1.4 94.5 -19.9 70.5 71.0
SOR 86.0 - -3.0 - - - 85.5 - -26.4 - - - 66.0 -

Individual Radiants

Sol. Long.
[°]
Date Rank Equatorial Coord. Ecliptical Coord. Velocity # Meteors
RA
[°]
Decl.
[°]
+/-
[°]
Long.
[°]
Lat.
[°]
Vinf
[km/s]
+/-
[km/s]
Abs. Rel. Abs. Norm. Rel. Norm. Rel. Norm. SPO
185 Sep 28 50 93.5 0.0 1.9 93.8 -23.4 71.0 2.0 124 2.2 592 1.6 2.0
186 Sep 29 34 92.6 2.5 2.3 92.8 -20.9 71.0 2.1 170 2.5 735 1.7 2.1
187 Sep 30 22 91.2 4.0 2.1 91.3 -19.4 71.0 2.2 178 2.6 710 1.5 2.0
188 Oct 01 23 92.7 7.0 2.2 92.8 -16.4 68.0 2.4 182 2.9 678 1.6 2.1
189 Oct 02 18 94.2 3.5 2.4 94.5 -19.9 71.0 2.6 193 3.3 781 2.0 2.6
190 Oct 03 16 91.0 8.5 2.0 91.0 -14.9 71.0 2.1 213 3.6 707 1.8 2.3

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