(meteorobs) Xi Draconids' velocity

• To: Meteor Observers List <MeteorObs@latradedot com>
• Subject: (meteorobs) Xi Draconids' velocity
• From: Rainer Arlt <100114.1361@CompuServedot com>
• Date: 20 Jun 96 13:33:39 EDT
• Reply-To: meteorobs@latradedot com
• Sender: owner-meteorobs

Thank you, Gary, for clarifying the velocity stuff. The radiant of the
xi-Draconids is about 83 degrees from the apex. The fastest meteoroids producing
a radiant at 90 degrees apex distance can have geocentric velocities up to 30
km/s. sqrt(42^2-30^2). The xi-Draconids should be slightly faster (~33 km/s)
when from this solar system. Hence, I would judge that George's and Bob's
meteors are spurious alignments, but how to explain the outburst observed by
Marco Langbroek who reports medium to fast speeds?

Rainer

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