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Isonomia wrote:
> I did however, try a few lower stars, and for the record, it is quite
> possible to view the cross hairs, by shining a small torch into the
> front of the telescope. WIth the x30 optics, I got a very clear image
> of the star with a orange glow background (my torch had a red LED
> setting which I preferred to white)

Another way is to wrap a hand around the muzzle of the flashlight, with
your index finger protuding into the beam. Then stick this illuminated
finger into the telescope's field of view. I've found this method easier
to manage than shining the beam directly into the scope.

You may enjoy this solar observing FAQ:
http://jeff.medkeff.com/astro/faq/

Surveying textbooks explain how to determine latitude, longitude, and
true north with a theodolite. Books before the GPS era tend to be more
thorough on astro techniques. You can probably find a good one at a
library, or online (e.g., Google Books) in scanned form.

In addition, these books have instructions on adjusting an instrument.

> Is there any way to view the image at 90? .... Don't tell me a false
> horizon!

What you are calling a "false horizon" is something navigators call an
"artificial horizon".

There are right angle eyepieces for theodolites, but they're scarce. One
exception is the theodolites now being sold by a Chinese manufacturer.
These come with a solar filter and right angle eyepiece. But I suspect a
new instrument would be too expensive for your purposes.
http://www.southsurveying.net/SouthET.html

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