Hi Lee and all,
in fact there is a 27.5 day rotation, (siderean revolution). These days are
referred to the moon, and they are the days it travels across its orbit, and
these days are the same it completes a turn itself, (so we always see the same
face of the moon!). But in fact, there is another 29 day rotation untill the
moon is again at the same possition respect to the sun, called "sinodic
revolution". Between them, the difference is almost 2 days, because sun is
moving from it´s orbit while moon travels acrooss its own, and since I do not
think that 160m "science" is so exact, a couple of days before and after this
phenomenon occurs, we have to be ready..! I mentioned 28 days because this is
very close to that numbers, and one have to be aware around 25 and 30 days...
Thank you for suggestion,
Josep
EA6BF
----- Original Message -----
From: Lee Wical
To: Josep
Sent: Tuesday, February 27, 2007 2:34 AM
Subject: Re: Topband: 27 days rotation
Josep EA6BF:
Actually it is a 27.5 day rotation
which, according to your calculations was
28-days. Suggest you use 27.5-days instead.
I hope this helps you.
ALOHA,
Lee KH6BZf
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