Ficheiro:Prime-meridian.jpgDescriptionPrime-meridian.jpg the Prime Meridian , Royal Observatory Greenwich Date 4 December 2005 Source Takasunrise0921 Author Takasunrise0921 Permission
Ficheiro:USBLM meridian map 5th PM.jpg5th Prime Meridian 398 137 57 125 850 800 4th Prime Meridian 470 340 37 120 850 800 3th Prime Meridian 547 336 53 104 850 800 2th Prime Meridian English