## Applying Mathematics to Astro Navigation

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- Stars/Planets
- Finding The Stars and Constellations. Part I
- Finding Stars and Constellations Part II
- Finding Stars and Constellations – Part III
- Finding Stars and Constellations – Part IV
- Predicting the Rising and Setting Times and Positions of Stars.
- The Southern Cross
- How To Locate Polaris (Pole Star / North Star)
- Venus – Evening Star or Morning Star?
- Latitude From Polaris

- Moon
- Sun / Earth
- Time.
- Astro Navigation
- What Is Astro Navigation?
- What’s The Point Of Astro Navigation When We Have GPS?
- Why Astro?
- The Accuracy Of Astronomical / Celestial Navigation
- In Defence of Mer Pas
- The Celestial Co-ordinate system.
- Translating a Celestial Position Into a Geographical Position.
- The Importance of Altitude and Azimuth in Celestial navigation.
- Bearing, Azimuth and Azimuth Angle.
- Astro Navigation in a Nutshell Part 1
- Astro Navigation In A Nutshell Part Two
- Astro Navigation In A Nutshell Part 3
- Astro Navigation In A Nutshell Part Four
- Understanding Meridian Passage (Mer. Pas.).
- Applying the Equation of Time when calculating longitude at the Sun’s meridian Passage.
- Meridian Passage Short Method
- Meridian Passage Long Method
- Altitude Correction for Parallax
- Altitude Correction for Semi-Diameter
- Altitude Correction for Dip
- The ‘Where To Look’ Method.
- The Astronomical Position Line
- The Relationship Between Altitude and Zenith Distance
- Planning Star and Planet Observations
- Calculating Latitude From The Midday Sun
- What’s The Point Of Calculating Our Latitude From The Altitude Of The Sun At Midday?
- Calculating Longitude
- Accuracy of Sight Reduction Methods.

- Astro Nav Course
- 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
- Azimuth and Altitude Part 1
- Azimuth and Altitude Part 2
- Azimuth and Altitude Part 3

- Survival Astro
- Astro Navigation In A Survival Situation
- Survival – Polynesian Star Compass (Learning from the Polynesians)
- Survival – Pillars of the Sky (Learning from the Polynesians).
- Survival – A Plan Of Mathematical Perfection. (Learning from the Polynesians)
- Survival – Star Compass 1.
- Survival – The Daytime Star.
- Survival – Finding Direction From The Moon.
- Survival – Calculating altitude without an angle measuring instrument.
- Survival – Latitude From The Midday Sun
- Survival – Latitude From The North Star
- Survival – Find Your Longitude.
- The Survival Sundial.
- Calculating the Sun’s Declination in a Survival Situation
- Survival – Make A Clinometer
- Survival – Declination Table

- General Interest
- Terrestrial Navigation
- Schools
- Why Astro Navigation In Schools?
- The First Point of Aries
- The Ecliptic, The Age of Aquarius and the Tropics.
- Calculating Azimuth And Altitude At The Assumed Position By Spherical Trigonometry.
- Calculating Distance To The Horizon
- Pythagoras
- Spherical Trigonometry
- Applying Mathematics to Astro Navigation
- Exercise 1 – Latitude from the North Star
- Exercise 2 = Application of Spherical Trigonometry
- Exercise 3 – Short Distance Sailing.
- Exercise 4 – Local Hour Angle.
- Exercise 5 – Zone Time (ZT)
- Exercise 6. Calculating Distance Between Meridians of Longitude Along a Parallel of Latitude.
- Trig Tables
- Make A Clinometer

- Books
- Sight Reduction Forms

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