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Question: Judging High Tide by the Moon
Wally wrote: Navigator wrote: What location has moon rise and set 12 hours apart? Virtually anywhere, I'd guess - just had a look at moon rise and set for some random locations (Glasgow, Jerusalem and Canberra), for today, and they're all a shade over 12 hours apart. If rise/set are close to due east/west, then the time for the moon to traverse the sky will be about 12 hours - think about the solar equinoxes, where the sun rises/sets due east/west. I dare say this princple won't hold at extreme latitudes. The moon passes the due east/west points twice in its mo(o)nthly cycle. The devil _is_ in the detail and is it ever 12 hours???? Cheers |
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