That's a good way to do it when the seas are rough and
the horizon hard to judge. We call that extrapolation.

S.Simon


"otnmbrd" wrote in message ink.net...
Sorry Neal, I never used that method to take LAN ..... too hard to judge
the right moment .... if you're going to use this method, best to take a
sight 10+ minutes prior to LAN and note the time and sextant altitude,
the take LAN (no close time really needed) then a third sight and time
when the sun returns to the altitude of your first sight, and work time
for LAN from that.

otn

The higher the sun is a LAN, the more accurate you may get, using your
method. However, the lower the sun at LAN, the less accurate.
It has less to do with rough seas and poor horizons.
Biggest problem with your method is getting an accurate time for LAN.

otn

Simple Simon wrote:
That's a good way to do it when the seas are rough and
the horizon hard to judge. We call that extrapolation.

S.Simon

Does your sextant show the entire disk of the sun in the mirror?

Mine does. There's a fancy name for this trick that I forget
what they call it but it makes it pretty easy to tell when the
Sun stops climbing and starts descending in the heavens.

S.Simon


"otnmbrd" wrote in message ink.net...
The higher the sun is a LAN, the more accurate you may get, using your
method. However, the lower the sun at LAN, the less accurate.
It has less to do with rough seas and poor horizons.
Biggest problem with your method is getting an accurate time for LAN.

otn

Simple Simon wrote:
That's a good way to do it when the seas are rough and
the horizon hard to judge. We call that extrapolation.

S.Simon

ROFL Shame I have to go out tonight. I'll answer you tomorrow Neal.
Gawd, what a frawd.

otn

You don't have a clue as to what I'm saying or talking about, do you?
Of course my sextant shows the entire disc of the sun, but it has
nothing to do with my sextant and everything to do with my latitude in
relation to the declination of the sun.

ton

Simple Simian wrote:
Does your sextant show the entire disk of the sun in the mirror?

Mine does. There's a fancy name for this trick that I forget
what they call it but it makes it pretty easy to tell when the
Sun stops climbing and starts descending in the heavens.

S.Simon


"otnmbrd" wrote in message ink.net...

The higher the sun is a LAN, the more accurate you may get, using your
method. However, the lower the sun at LAN, the less accurate.
It has less to do with rough seas and poor horizons.
Biggest problem with your method is getting an accurate time for LAN.

otn

Simple Simon wrote:

That's a good way to do it when the seas are rough and
the horizon hard to judge. We call that extrapolation.

S.Simon