Celestial navigation Celestial navigation Celestial navigation, also known as astronavigation, is the ancient and modern practice of position fixing that enables a navigator to transition through a space without having to rely on estimated calculations, or dead reckoning, to know their position. Celestial navigation uses "sights", or angular measurements taken between a celestial body (e.g. the Sun, the Moon, a planet, or a star) and the visible horizon. The Sun is most commonly used, but navigators can also use the Moon, a planet, Polaris, or one of 57 other navigational stars whose coordinates are tabulated in the nautical almanac and air almanacs.
Luna (yacht) freezing order on Luna. ç Luna (yacht) Luna is the second largest expedition yacht, and is currently at the centre of a dispute between Farkhad Akhmedov and his ex-wife Tatyana Akhmedova after ownership was awarded to her by the UK High Court . At long, "Luna" is the world's second largest expedition yacht and 23rd largest luxury yacht. The yacht's cost has been estimated at over €400m euros (approx. US$545 million as of April 2010). "Luna" was delivered to Russian businessman Roman Abramovich on 10 April 2010. Its exterior was designed by NewCruise of Germany and its interior by Donald