day. To see information about this book and where to buy: https://astronavigationdemystified.com/astro-navigation-demystified-2/, For information about this book and where to buy: https://astronavigationdemystified.com/applying-mathematics-to-astro-navigation-3/, For information about this book and where to buy: https://astronavigationdemystified.com/astronomy-for-astro-navigation-2/. It is negligible except in the case of the Moon which is close to the Earth in comparison with the other celestial bodies. The Accuracy Of Astronomical / Celestial Navigation. Day" from the menu: The elevation angles of the Moon are towns and villages world-wide. Applying the Equation of Time when calculating longitude at the Sun’s meridian Passage. At an altitude of some 45,000 feet, SOFIA rises above 99.9% of the water vapor in the atmosphere, said Naseem Rangwala, SOFIA’s project scientist. which is bending the light while passing through the The Ecliptic, The Age of Aquarius and the Tropics. When a navigator measures the altitude of the Moon, there are several corrections that he has to make to the readings. What’s The Point Of Astro Navigation When We Have GPS? Regardless of which limb we use, what we really need is the altitude of the Moon’s centre so we must either add or subtract the value of its semi-diameter. THE IMPORTANCE OF MORNING AND EVENING STAR SIGHTS, The Importance of Morning and Evening Stars – Part 2, The Importance of Altitude and Azimuth Angle in Position Finding, The Demystified Astro Navigation Course Unit 1, The Demystified Astro Navigation Course Unit 2, The Demystified Astro Navigation Course Unit 2 Self Test, The Demystified Astro Navigation Course – Unit 3 Part 1, The Demystified Astro Navigation Course – Unit 3 Part 2, The Demystified Astro Navigation Course – Unit 3 Part 3, The Demystified Astro Navigation Course Unit 4, The Demystified Astro Navigation Course Unit 5, The Demystified Astro Navigation Course – Unit 6, Survival – Polynesian Star Compass (Learning from the Polynesians). You may use the keys "m", "d", "h", "n" to increase the month, date, hour, or Short Distance Sailing And Rhumb Line Sailing. Where to buy books of the Astro Navigation Demystified series: Astro Navigation Demystified at Amazon.com, Astro Navigation Demystified at Amazon.uk, Applying Mathematics to Astro Navigation at Amazon .com, Applying Mathematics to Astro Navigation at Amazon .uk, Astronomy for Astro Navigation at Amazon.com, Astronomy for Astro Navigation at Amazon.uk, web: http://www.astronavigationdemystified.com. Moon Direction: ↑ 120° Southeast: Moon Altitude: 11.7° Moon Distance: 246,877 mi: Next Full Moon: Oct 31, 2020, 9:49 am: Next New Moon: Nov 14, 2020, 11:07 pm: Next Moonset: Tomorrow, 2:27 am