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Re aiming a digital level, you asked:
"How do  you propose to read the level do the sextant sight at the same  time"

Several models of these digital levels have a button that freezes  the
reading. You aim at your star and press the button when it's aligned. Point  and
click. But the commercial models are only accurate to +/-0.1 degrees  --plenty
good enough, to the point of over-kill for carpentry applications, but  not so
good for celestial navigation.

"I'm already having enough of a  challenge trying to get sights with
Celestaire's bubble horizon for the Astra  - it's a lot like trying to
stand on a beach ball in the deep end of the  pool.  :-) "

Yep. That's about the same accuracy and has the same  problem. The great
thing about a reflecting sextant is that a little tremor of  the hand makes no
difference at all in the accuracy of the sighting process.  When you give up the
horizon and try to depend on the accuracy of an internal  level, you have to
stabilize the platform somehow.

-FER
42.0N 87.7W,  or 41.4N 72.1W.
www.HistoricalAtlas.com/lunars


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