Earth Globe Methods

[lorrden]

Implement equations and algorithms from Meeus chapter 11

• [x] Geocentric rectangular coordinates of an observer
• [x] Test case using Example 11.a
• [x] Radius for parallel of latitude
• [x] Radius for the meridian
• [x] Test case using Example 11.b
• [x] Fast distance between points on surface
  • [x] Equation 11.1
  • [ ] Equation 11.2
• [x] High accurate distance between points on surface
• [x] Test case using Example 11.c