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I have never shot the moon with my bubble sextants and it is the only
body that is peeking out from the gloom tonight. It is quite handy
actually as it peers through quite a lot of cloud and a light filter
sharpens it up nicely. As I am sure all of you understand, I have to
make sure that  my balcony has not changed location on the face of the
earth.  I do not own an Air Almanac yet, and I was wondering if it
contained correction tables for the moon and sun that were made for a
bubble sextant. With the sun, I just use the star corrections, or
average the upper and lower limb.

I just got a Mark IX on e-bay for 31 dollars. It is missing the cover
for the averaging clockwork system, and I will have to fill the bubble
system, but it is otherwise fine. I found a reference to a page on this
list that gives me all the details I need to remove and fill the bubble
mechanism.

I now own an A-12, and A-10, and the Mark IX. Can I stop collecting now?

Bruce Hamilton
Vancouver, BC
CN89kg

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