Basic survival celestial navigation

When I took my first brick-like Magellan GPS receiver out of its box back in the mid-1990s, I was in Wick, NE Scotland. The fog was thick enough to walk on. Filled with a confidence I had never had be

How the world’s clocks and geographic coordinates came to be set by a small borough of London

BEST TIME TO SEE: Nights of 9/10, 10/11 and 11/12 July A full Moon occurs when the Moon is opposite the Sun in the sky or, in other words, when its ecliptic longitude is 180° from the Sun. The eclipti

Mark Bailey is a freelance writer who has written for The Observer, The Times and National Geographic. marksbailey.com Many people rely on GPS apps to explore new landscapes, but with natural navigati

Solo sailor Owen Moorhouse recalls having to make quick contingency plans at night while battling fatigue

1 Our Moonwatch target (see page 52), the walled plain Flammarion, is well placed this evening and tomorrow evening. You can also catch it on the waning Moon on the morning of 16 August. 2 This evenin