Meteor Shower #109

Overview

# Radiants # Meteors Median Rank MDC # Abbrev. Name Status Technique # Orbits
13 238 6 572 TOH 21-Herculids w T 11

Activity Interval

Source Begin Mean Max End
Sol. Long.
[°]
Date Sol. Long.
[°]
Date Sol. Long.
[°]
Date Sol. Long.
[°]
Date
#109 348.0 Mar 09 348.7 Mar 10 349.2 Mar 10 349.5 Mar 10
TOH - - 350.0 Mar 11 - - - -

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
[°/°]
SC Long.
[°]
Drift SC Long.
[°/°]
Lat.
[°]
Drift Lat.
[°/°]
Long.
[°]
SC Long.
[°]
Lat.
[°]
Vinf
[km/s]
Vinf
[km/s]
#109 239.3 2.1 4.7 -2.8 243.5 -1.0 236.0 3.0 247.2 2.0 24.5 -2.2 241.7 252.5 19.9 65.5 64.0
TOH 246.2 0.3 7.6 0.1 - - 242.8 0.3 252.8 -0.7 28.8 0.2 - - - 64.7 -

Individual Radiants

Sol. Long.
[°]
Date Rank Equatorial Coord. Ecliptical Coord. Velocity # Meteors
RA
[°]
Decl.
[°]
+/-
[°]
Long.
[°]
SC Long.
[°]
Lat.
[°]
Vinf
[km/s]
+/-
[km/s]
Abs. Rel. Abs. Norm. Rel. Norm. Rel. Norm. SPO
348.0 Mar 09 6 240.3 9.5 2.1 235.8 247.8 29.5 62.5 2.6 47 2.6 129 1.1 0.7
348.1 Mar 09 5 239.8 9.5 2.5 235.3 247.2 29.4 62.5 3.1 53 3.6 143 1.5 1.0
348.3 Mar 09 1 238.8 7.0 2.0 234.9 246.6 26.7 66.5 1.9 32 3.1 89 1.3 0.9
348.4 Mar 09 6 239.1 5.5 2.5 235.6 247.2 25.3 62.0 2.4 21 3.2 61 1.4 0.9
348.6 Mar 09 19 236.0 0.5 2.8 233.6 245.0 19.7 62.5 2.1 26 3.0 82 1.4 1.0
348.7 Mar 09 9 237.8 8.0 1.9 233.5 244.8 27.5 66.5 3.4 20 1.9 53 0.8 0.5
348.8 Mar 10 8 238.1 2.0 2.2 235.4 246.6 21.7 68.5 3.0 40 3.1 126 1.4 1.0
349.0 Mar 10 6 233.6 -2.0 2.4 231.7 242.7 16.7 66.5 2.8 62 4.1 198 2.0 1.4
349.1 Mar 10 6 242.4 5.0 2.2 239.2 250.1 25.5 67.0 2.8 41 3.4 128 1.6 1.1
349.2 Mar 10 6 243.5 -1.0 2.0 241.7 252.5 19.9 64.0 3.1 36 4.2 137 2.4 1.7
349.3 Mar 10 3 241.1 7.5 2.0 237.2 247.9 27.7 70.0 1.8 39 5.0 115 2.2 1.5
349.4 Mar 10 7 240.1 8.5 2.0 235.9 246.5 28.5 65.0 2.1 19 3.0 52 1.2 0.8
349.5 Mar 10 36 244.1 4.0 2.0 241.3 251.8 24.9 69.0 2.6 18 2.0 56 0.9 0.6

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