Light speed 299792458 m/s | 1079252848.8 km/h
C = 299792458

# RedLight Wavelength ~= (700 nm) and frequency ~= 430Ghz (428571428571) Hz
fr = C / 0.0000007

# Green Wavelength ~= (550 nm) and frequency.
fg = C / 0.00000055

# vx = ((fr * C) / fg) - (C-vt) ; vt = 0
vx = ((fr * C) / fg) - C

vx = 64241241.0 m/s or 231268467.6 km/h