Shadow Length Calculator
You are at 0 0
N
E
You are at 0 0
Your shadow will be 0m long
The current date and time is 0
Zenith is at Dec:0 RA:0
Sun is at Dec:0 RA:0
The angle between the two is 0
You are at 0 0
N
E
You are at 0 0
Your shadow will be 0m long
Zenith is at Dec:0 RA:0
Sun is at Dec:0 RA:0
The angle between the two is 0
Gives a vertical object shadow length for given coordinates and time. Also calculates shadow growth during the whole day.
This simple online calculator gives a vertical object shadow length for a specified day and geographic coordinate. The calculator uses the Sun position algorithm to calculate sun altitude.
Then it uses this formula to calculate shadow length:
L = H / tan (a)
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.