Length of a Sidereal Day Calculator

Calculate the Length of a Sidereal Day

Calculate the length of a sidereal day from star trails by using simple astronomy calculator online.

Formula:

$T = \frac{360}{θ} \times t$

where,
t = exposure time
θ = average angle
T = sidereal day length

Reference:

uca.edu : https://faculty.uca.edu/njaustin/PHYS1401/Laboratory/sidereal.pdf

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