Shadow length

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

Esta página existe graças aos esforços das seguintes pessoas:

Anton

Timur

Timur

Michele

Michele

Criado: 2012-03-29 18:52:42, Ultima atualização: 2020-11-09 16:14:49

Sun altitude and shadow
Sun altitude and shadow

This simple online calculator gives a vertical object shadow length for a 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 - the angle between Sun and horizon.

The calculator gives zero results 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
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PLANETCALC, Shadow length

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