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Dear Fred,
I just posted my second series of Lunars made 2 hours ago.
(Taking into account all advises I got on the first series)

> Even with that bad point in there your mean is -0.2'
> from the truth
> with a standard deviation of 0.7',
> and a standard error of the mean of
> 0.3'.  Usable.

But do you agree that that bad observation HAD to be rejected?
It was evident to me immediately when I read my sextant.
My reason and all what I know about statistics imply this.

I suppose the reason of that blunder was incorrect time recording.
My (easily solvable) problem is that I have no watch that I
can read in the darkness and without eyeglasses.
So I am just thinking of buying a good large diameter
split-second-hand stop watch, as in Bruce Bauer,
page 141. (I see some of these in my favorite
Ukrainian web store:-)
In the observations I reported I used the
"Old Flegmatic British Merchant Mate" method as described
in Bruce Bauer, same page:-)

> It looks like you made the right choice
> getting that snowy sextant rather than a Husun.

I also like it. Still have to try really large distances.
(It allows to 140 degrees!)
I am afraid I will need another place than my balcony for this:-)

Alex.

   

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