51.508433 -0.077187

N 51.508433 W 0.077187

51.508433° -0.077187°

N 51.508433° W 0.077187°

51°30.506' 0°4.631'

N 51°30.506' W 0°4.631'

51°30'30.36" 0°4'37.87"

N 51°30'30.36" W 0°4'37.87"