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    Re: Longitude by asteroid
    From: Peter Monta
    Date: 2017 Dec 9, 00:02 -0800
    Thanks for the heads-up on the Phaethon close pass.  Here's an image of the asteroid taken just now with one of the itelescope.net scopes.  Pretty zippy already---this is a 3-minute exposure.  The internet telescopes are great for spur-of-the-moment imaging with really nice cameras (but pricey---this image cost me $7).

    Knowing that the streak is a 3-minute exposure already gives some indication of what timing precision might be possible.

    Cheers,
    Peter

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