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Dear Jean-Philippe,

1. The sextant is "right out of the box".
With one exception: the bulb illimination originally did not
work. Trying to fix the problem I first inspected the switch.
The switch was OK. Then I disassembled the sextant into two halves,
and found that the bubble illumniation is wired through the averager.
I opened the averager, but could not see where the problem is,
and did not want to meddle with its complicated mechanism.
So I just shortened the bubble illumination, so that now it
does not go through the averages, but only through the switch.

2. I did not do any adjusting, including Index error, and I do not
know how. Interestengly, there is a label on the box that says that
index error is zero:-)

3. Unfortunately, not all my observations are so good as posted:-(
I just posted the first successful Sun observation, just after two
preliminary trials to see how it works.
But the same evening I tried some stars,
and was sometimes 3-4 minutes
off. The problems I see so far are the following:
a) the bubble illumination is not bright enough and not uniform.
b) the bubble grows as I observe. Small bubbles come from time to time
from the 10 oclock place in the field of view (the usual birth place of
the bubble) and join the main bubble which as a result increases is size.
So I have to adjust the bubble frequently.

Alex.

P.S. It is also terribly cold in Lafayette now:-)
With all my warmest
cloth on I cannot stay on the balcony for an extended
time.


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