Hallo,

I am in the process of fabricating a “Bris Sextant”.

http://en.wikipedia.org/wiki/Bris_sextant

Although I have been sailing for years, I’m not very familiar with astronomical navigation.

Is there anybody out there who could provide me with the information and calculations required to determine actual position (longitude and latitude) at sea using this “Bris Sextant”.

Thanks in advance,

Rick Kranen
The Netherlands