Re: The speed of gravity

[Gary Karshner <gkarshner@STMARYTX.EDU>]

Leigh,
        l suspect it is the increased distance that Jupiter away from us.
A longer base line would   allow greater precision. How does one get a hold
of (gr-qc0206022)?

Gary


> It is called an "appulse". The center of Jupiter will pass 3.7
> seconds of arc from the quasar J0842+1835 on 8 September 2002. That
> is less than the apparent radius of Jupiter, I'll note, so this
> could also be called an "occultation"
>
> I confess that the press release gives me no idea why this appulse
> is more propitious than the annual passages of the limb of the Sun
> past quasar 3C279 each October. According to the paper (gr-qc0206022)
> the Shapiro delay will be measured to picoseconds, yielding the
> "speed of propagation of gravity" to a precision of 10% of the speed
> of light. I confess that the paper is well beyond my ability to
> comprehend. Can someone help me?
>
> Leigh