I'm not being "evasive," I just don't feel the need to prove myself to you,
especially given that you've already demonstrated a less than beginner's
understanding of this. A question was asked; I gave the correct answer, you
spoke gibberish. Now you're trying to save face by posing riddles until I
falter - sorry, not playing.

One of the links I provided yesterday shows on one screen all the
moonrise/moonsets for a location for a year. It is pretty clear from that the
time is not constant. Its also clear that a 12 hour "lunar day" is quite
possible, though not common. Its also possible for this to occur with moonrise
are 4 pm. You, on the other hand have claimed this is not possible. Come back
when you have worked it out.

-jeff

p.s. Of course its not constant for a day of the year.


"Navigator" wrote in message
...
So why not answer the question "is the period from rise to set at a
fixed location constant?" Why be so evasive? I'll give you a hint and
then add to it: Is it constant at a fixed location on the same day each
year? If not why?

Cheers


Jeff Morris wrote:

I know the answer, having worked it out (for the nth time) a few minutes
after
reading the question. But it seems like you have some difficulty with the
concepts. After all, I had the correct answer to the problem; all you've
offered is nonsense.


"Navigator" wrote in message
...

So you don't know the answer?

Cheers

Jeff Morris wrote:


After you've thought about it a bit, you can report back.


"Navigator" wrote in message
...


Jeff Morris wrote:


Are you claiming its broken?

There are a number of factors that determine the time between moonrise
and
moonset. However, there is no reason why a 12 hour duration can't occur,

and no


reason why it can't happen from 4pm to 4am.


Yes, but is the period from rise to set at a fixed location constant?
And yes I'm trying to get some thinking going.

Cheers