# NavList:

## A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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Re: Lat/Lon by "Noon Sun" & The Noon Fix PROVE IT
From: George Huxtable
Date: 2009 Apr 25, 00:06 +0100

```Hewitt and I are converging, gradually...

He wrote-
"In re-studying your earlier noon document today, I now see the reason
for the different look: The top three rows  in "noon 1a" are
extra-long because they have "lat     long      knots" at the end, so
they went beyond TextEdit's margins and flipped to the next line. I've
just printed this document out and now it looks like the numbers
between the lines are the latitude, longitude and speed data for the
top two rows of sextant altitudes."

Yes. It's because all the data won't fit on to a line if your text output is
formatted in "portrait" mode. But if you can twist it round to "landscape"
format, or reduce font size, then it should lay out more nicely, unbroken
across a page..

I provided answers, just for those top two rows, to show what was going on.

"Assuming this to be true. what I now see I can do is use your altitude
data from the top two rows of altitudes in your "noon 1a" to figure
their resultant latitudes and longitudes and compare them to the
Lat/Lons you have at the ends of those two rows."

Yes, that was the idea. But the real test comes in the other rows, after the
first and second, when only I, and not you, know what the answer is supposed
to be!

"I'll take those latter two positions as DRs and go ahead if you like.".

No, they aren't DRs. The only DR information you are given is that the
position is always between 55º30'N and 56º30'N, and between 9ºW and 11ºW, so
you could take a DR to be 56ºN, 10ºW for every set of observations if you
wish.

But for other reasons, which I won't go into unless you ask, I would now ask
you to take, not that earlier set of 20 noons, but the set of 8 (or some of
that set) I offered yesterday, at noon2a.doc, in which all the answers are
hidden, and that set is attached again today. Note that all you are asked
for, for each row, is to deduce the actual lat and long, as well as you can,
and not the speed.

George.

contact George Huxtable, at  george{at}hux.me.uk
or at +44 1865 820222 (from UK, 01865 820222)
or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

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```

File: 108035.noon2a.doc
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