Meteor Shower #255

Overview

# Radiants # Meteors Median Rank MDC # Abbrev. Name Status
20 772 8 331 AHY alpha-Hydrids e

Activity Interval

Source Begin Mean Max End
Sol. Long.
[°]
Date Sol. Long.
[°]
Date Sol. Long.
[°]
Date Sol. Long.
[°]
Date
#255 270 Dec 22 279 Dec 31 280 Jan 01 289 Jan 09
AHY - - 286 Jan 06 - - - -

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]
#255 124.1 0.7 -7.1 -0.2 124.9 -7.0 128.3 0.8 -26.1 0.0 129.1 -25.8 44.7 43.0
AHY 127.6 - -7.9 - - - 132.3 - -26.0 - - - 45.0 -

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
270 Dec 22 42 118.0 -5.5 1.8 121.3 -25.9 44.0 2.6 65 1.8 198 0.8 0.8
271 Dec 23 28 118.4 -4.5 2.4 121.5 -24.9 46.0 2.2 68 1.9 195 0.8 0.8
272 Dec 24 12 120.3 -6.5 2.2 124.0 -26.4 47.0 1.8 74 2.7 212 1.1 1.1
273 Dec 25 9 119.7 -8.0 2.0 123.8 -28.0 45.0 1.7 68 2.7 190 1.1 1.1
274 Dec 26 37 121.1 -5.5 2.2 124.7 -25.3 45.0 2.0 50 1.8 133 0.7 0.7
275 Dec 27 8 121.5 -7.5 2.1 125.6 -27.1 45.0 1.8 88 2.6 266 1.2 1.1
276 Dec 28 5 122.4 -7.0 2.0 126.4 -26.4 45.0 1.7 103 3.0 313 1.4 1.2
277 Dec 29 7 122.9 -7.0 2.2 127.0 -26.3 44.0 1.8 115 3.4 350 1.6 1.4
278 Dec 30 5 122.8 -6.5 2.2 126.7 -25.9 45.0 1.7 121 3.4 345 1.4 1.3
279 Dec 31 7 124.9 -7.0 2.2 129.1 -25.8 44.0 1.8 128 3.9 359 1.6 1.5
280 Jan 01 6 124.9 -7.0 2.2 129.1 -25.8 43.0 1.9 102 4.2 288 1.8 1.6
281 Jan 02 7 125.9 -8.5 2.1 130.6 -27.0 42.0 1.9 50 3.2 148 1.4 1.3
282 Jan 03 10 126.8 -6.5 2.0 131.0 -24.9 45.0 1.8 51 1.7 142 0.7 0.6
283 Jan 04 8 126.9 -7.0 1.9 131.2 -25.3 45.0 1.8 95 1.8 271 0.8 0.7
284 Jan 05 8 127.6 -7.5 2.1 132.1 -25.6 45.0 1.9 83 2.2 237 0.9 0.8
285 Jan 06 9 127.8 -9.5 2.3 133.0 -27.5 45.0 2.1 43 2.2 147 1.1 1.0
286 Jan 07 5 129.1 -9.0 2.3 134.2 -26.6 41.0 1.5 43 2.8 140 1.4 1.2
287 Jan 08 5 129.4 -8.5 1.7 134.3 -26.1 45.0 1.6 46 2.9 145 1.4 1.2
288 Jan 08 7 130.9 -8.5 1.6 135.9 -25.7 45.0 2.0 53 2.3 165 1.1 0.9
289 Jan 09 27 130.9 -8.5 1.8 135.9 -25.7 49.0 2.2 44 1.8 137 0.8 0.7

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