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Shadow length

Gives a vertical object shadow length for given coordinates and time. Also calculates shadow growth during whole day.

This page exists due to the efforts of the following people:

Anton

Anton

Timur

Timur

Sun altitude and shadow
Sun altitude and shadow

This simple online calculator gives a vertical object shadow length for specified day and geographic coordinate. The calculator uses Sun position algorithm to calculate sun altitude.
Then it uses this formula to calculate shadow length:

L=h/tan({\alpha}),

where

h - object height,
a - angle between Sun and horizon.

The calcultor gives zero result if there is no shadow. As you know, this may happen at night time :).

PLANETCALC, Shadow length

Shadow length

 
:
°
°
Digits after the decimal point: 2
Shadow length
 

You may also calculate the shadow growth during the whole day using the calculator below:

PLANETCALC, Daily shadow growth

Daily shadow growth

°
°
Digits after the decimal point: 2
Shadow length

Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Shadow length

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