Meteor Shower #157

Overview

# Radiants # Meteors Median Rank MDC # Abbrev. Name Status Technique # Orbits
17 230 7 841 DHE delta-Herculids w C 32

Activity Interval

Source Begin Mean Max End
Sol. Long.
[°]		 Date Sol. Long.
[°]		 Date Sol. Long.
[°]		 Date Sol. Long.
[°]		 Date
#157 19.4 Apr 09 20.3 Apr 10 19.7 Apr 10 21.6 Apr 12
DHE - - 19.5 Apr 10 - - - -

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]
#157 255.7 -0.9 23.6 -0.2 256.1 24.5 250.9 -1.1 230.6 -2.1 46.0 -0.4 251.3 231.6 47.0 50.4 56.0
DHE 256.2 - 23.7 - - - 251.6 - 232.1 - 46.3 - - - - 50.7 -

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
19.4 Apr 09 9 259.0 23.5 2.3 255.3 235.9 46.4 55.0 1.7 33 3.4 64 1.0 0.7
19.5 Apr 10 8 256.8 23.5 1.8 252.4 232.9 46.1 56.5 2.0 29 2.6 52 0.7 0.5
19.6 Apr 10 8 255.7 23.5 2.0 251.0 231.4 46.0 54.0 3.2 35 3.4 63 0.9 0.7
19.7 Apr 10 7 256.1 24.5 2.3 251.3 231.6 47.0 56.0 3.0 42 4.2 74 1.1 0.8
19.9 Apr 10 4 249.9 21.5 1.9 244.0 224.1 43.1 51.5 3.6 29 4.2 49 1.1 0.8
20.0 Apr 10 7 257.6 22.5 2.1 253.6 233.6 45.2 46.5 2.4 19 2.8 34 0.8 0.6
20.1 Apr 10 4 258.1 25.5 1.9 253.8 233.7 48.3 43.0 4.5 19 2.5 33 0.7 0.5
20.3 Apr 10 2 258.7 25.5 1.3 254.6 234.3 48.3 48.5 2.2 26 4.2 46 1.1 0.8
20.4 Apr 10 6 256.6 24.5 1.1 252.0 231.6 47.1 49.0 2.0 17 2.5 31 0.7 0.5
20.5 Apr 11 11 257.1 22.5 1.7 253.0 232.5 45.2 45.5 2.0 21 2.2 39 0.6 0.4
20.7 Apr 11 14 251.8 24.0 2.3 245.8 225.1 45.9 47.0 3.2 39 3.3 64 0.8 0.6
20.8 Apr 11 16 251.5 23.0 2.0 245.7 224.9 44.9 51.5 3.5 27 3.1 45 0.8 0.6
21.0 Apr 11 18 258.0 23.0 1.9 254.1 233.1 45.8 49.5 2.2 22 3.0 41 0.8 0.6
21.1 Apr 11 6 257.3 23.5 2.1 253.1 232.0 46.2 50.5 2.4 22 2.8 41 0.8 0.6
21.2 Apr 11 2 257.3 23.5 1.8 253.1 231.9 46.2 50.5 5.0 24 2.7 43 0.7 0.5
21.4 Apr 12 3 256.1 24.0 1.1 251.4 230.0 46.5 48.0 3.2 17 2.2 32 0.6 0.5
21.6 Apr 12 16 251.3 22.0 2.1 245.6 224.0 43.9 42.0 2.9 18 2.3 30 0.6 0.4

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