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Re: (meteorobs) Re: Call for Observations for delta Cancrids
On Mon, 7 Jan 2002, Rob McNaught wrote:
> Huang had written that Vg for 2001 YB5 was 30 km/s and the DCA were 28 km/s
> so there is only a small discrepancy. The heliocentric velocity is 38 km/s.
I got this wrong I think. Presumably the DCA's 28 km/s is an atmospheric
velocity. The atmospheric velocity for YB5 would be 32.4 km/sec. This
is a little bit of a discrepancy, bearing in mind that the DCA's velocity
was derived instrumentally (radio and photography).
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