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Re: (meteorobs) A weak Ursids outburst possible in 2002
Dear Derek,
Here are a few sources for the Ursids:
Meteor Showers Report for Ursids 2002
Date Meteor Shower ZHR RA DEC Illum. Frac. Longitude 23/12/2002 Ursids 5 14h28m 78° 0.86 271°
Source: http://www.asnsw.com/almanac/1202.htm
Starts: 12/22/2002 Ursids (URS)
Active: Dec 17-Dec 26
Max: Dec 22
Radiant: 217 +76
Diameter: 5
Drift: 0.0 -0.4
Velocity: 33
Population Index: 3.0
ZHR: 10NOTES: This shower has been poorly observed although at least two major outburst have occurred in 1945 and 1986, and several other enhanced rates, most recently in 1988 and 1994. The parent comet of this shower is Comet Tuttle, which last reached perihelion in 1994. An odd feature of this shower is the apparent existence of a small condensation of material opposite the comet. A short but strong display has been seen three times while Comet Tuttle was near aphelion, with the last burst of activity occurring in 1986. Thus the year 2000 may provide the next possible strong display of Ursid meteors. A great majority of the Ursid activity occurs on the morning of December 22. The Ursids display variable activity with ZHRs of around 50 being recorded on occasion. This shower is difficult to photograph due to the low numbers and the faintness of its meteors. This shower is invisible in the Southern Hemisphere.Source -http://www.weathergab.com/pop_event.asp?event_id=113
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Ursids (URS) Active: Dec 17-Dec 26 Max: Dec 22
Radiant: 217 +76 Diameter: 5 Drift: 0.0 -0.4
Velocity: 33 Population Index: 3.0 ZHR: 10
Source - http://www.namnmeteors.org/appendixA.html
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Ursids 2003
Source:http://www.imodot net/calendar/cal03.html#Ursids
Ursids
Active : December 17-26;
Maximum : December 23, 1h UT (sol = 270.7);
ZHR = 10 (occasionally variable up to 50);
Radiant : alpha = 217°, delta = +76°; Radiant drift: see Table 6;
V = 33 km/s;
r = 3.0;
TFC : alpha = 348°, delta = +75° and
alpha = 131°, delta = +66° (beta > 40° N);
alpha = 063°, delta = +84° and
alpha = 156°, delta = +64° (beta 30° to 40° N)
Cheers!
Chris