[time-nuts] finding time astronomically.

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Jan 23 15:05:18 EST 2012

In message <4F1DBCC9.9040900 at earthlink.net>, Jim Lux writes:

>How well could you do with something like the camera in the iPhone4 
>facing up. The front camera is VGA resolution.

Very badly.

The major trouble is actually not getting the light from the star,
but making sure your camera/telescope/transit-circle has a known
and stable geometric relationship to the planet Earth.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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