A minute ago I wrote:
> Except for a new (which you can't see) or full moon, you can use the
> terminator as an indicator of a perpendicular direction to the plane
> of the ecliptic.  Follow the implied ecliptic to either horizon to get
> a sense of east and west.  If you're familiar with astronomy and can
> anticipate whether the ecliptic should be north or south of the
> celestial equator for the current date and time you can refine this
> indication of east or west direction.

I should have been a little more specific here:

    If you're familiar with astronomy and can anticipate whether
    the ecliptic should be north or south of the celestial equator
    at the two horizon points for the current date and time you
    can refine this indication of east or west direction.

Jim
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