--- Alan Gornik <[EMAIL PROTECTED]> wrote:
>
> With Spring (and Summer) approaching up here in the northern
> hemisphere, I just wanted to make sure that in fact the sun is
> supposed to be a bit higher in the sky each day! So I set my CDC
> clock to noon today and animated forward daily for 6 months for a
> succession of views of the southern sky at noon each day. It looks
> like the sun indeed should be higher and max out in late June, so CDC
>
> is right on! A couple of questions though:
>
> 1) Can I tell from this view when the vernal equinox is? Nothing
> seemed to be unique about March 20 just by simply looking at the
> animation of the sun at noon over time.
It's half way between the high mark and the low mark.
Another useful animation is to show the sun at intervals of, say, 15
minutes, through a given day, and see how the path varies for different
times of the year. At the equinoxes, the sun rises due east, crosses
the meridian perpendicularly, and sets due west.
-John
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