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Advanced Earth Curvature Calculator

  • Basics
  • View
  • Target 1
  • Target 2
  • Refraction⇒
  • Std
  • 0
  • Units
  • Save/Restore
  • Reset All

Please read the paragraph on Refraction to get familiar with this panel.

Use this Formular to convert between different lengh units. You can Copy/Paste the results into input fields in the other Forms.

Get App Url Set App State Clear

Use Get App Url to get an URL containing the current App State. Click Set App State oder copy the URL into any browser address field to go to this page and display the current App State.

Curvature Calculator showing Angles
Curvature Calculator showing No Refraction
Curvature Calculator showing Refraction
  • Angles
  • No Refraction
  • Refraction

Note: Values marked with a * are not dependent on Refraction in reality. The marked values show the apparent values if refraction is not zero. So to display the real values, set Refraction = 0. This is true for all Horizon Data as well.

Angular Distance θ: is the angle between the observer, the center of the earth and the nearest target. This angle is used in some Drop calculators, as the Drop x is:

(1)
x = R \cdot \big( 1 - \cos( \theta ) \big)
where'
x ' =' 'drop from the surface level
R ' =' 'radius of the earth
\theta ' =' 'angle between observer, the center of the earth and the target

Note that \theta is the same angle as the Tilt of the target object.

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Erzeugt Wednesday, June 20, 2018
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Geändert Saturday, June 23, 2018
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