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NLV Pole Star
NLV ''Pole Star'' is a lighthouse tender operated by the Northern Lighthouse Board (NLB), the body responsible for the operation of lighthouses and marine navigation aids around the coasts of Scotland and the Isle of Man. ''Pole Star'' was joined by a new vessel, in March 2007, which replaced the previous vessel of the same name. Although the headquarters of the NLB is in Edinburgh, both vessels can be serviced by a workbase in Oban on the west coast. History ''Pole Star'' was completed in 2000 by Ferguson Shipbuilders on the River Clyde. She is the fourth NLB vessel to carry the name and replaced the 37-year-old MV ''Fingal''. In memory of this vessel, ''Pole Star'' has a workboat onboard named ''Fingal''. In March 2012, the ship engaged in carrying out marine a Multibeam echosounder survey in the area of Shetland with the British Geological Survey on behalf of Marine Scotland. In January 2013, the ship carried out a marine sampling survey and undertook penetration testing i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pole Star (IMO 9211987)
A pole star or polar star is a star, preferably bright, nearly aligned with the axis of a rotating astronomical object, astronomical body. Currently, Earth's pole stars are Polaris (Alpha Ursae Minoris), a bright apparent magnitude, magnitude-2 star aligned approximately with its northern axis that serves as a pre-eminent star in celestial navigation, and a much dimmer magnitude-5.5 star on its southern axis, Polaris Australis (Sigma Octantis). From around 1700 BC until just after 300 AD, Kochab (Beta Ursae Minoris) and Pherkad (Gamma Ursae Minoris) were twin northern pole stars, though neither was as close to the pole as Polaris is now. History In classical antiquity, Beta Ursae Minoris (Kochab) was closer to the celestial north pole than Alpha Ursae Minoris. While there was no naked-eye star close to the pole, the midpoint between Alpha and Beta Ursae Minoris was reasonably close to the pole, and it appears that the entire constellation of Ursa Minor, in antiquity known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
