I learnt celestial navigation on an RYA Yachmaster Ocean course in the 1980s, from a woman who lived in rural Oxfordshire and whose name I am sorry I cannot recall. She had many ocean crossings under her belt and had a wonderfully un-mathematical way of understanding the mathematics and an incredible ability to recognise navigational stars as they peeped out from between clouds perhaps by knowing where they should be and their colour and magnitude but with out the need for constellations as a guide.
|Davis Mark 3|
I understand that modern new Chinese Astra sextants are excellent value and in particular lighter, but a good Tamaya is probably the best value to be found second hand.
I look forward to trying my new one at sea!