Antimeridian And Prime Meridian Better [ Top 20 LIMITED ]

Today, the true zero-longitude line is actually about 100 meters east of the original Greenwich telescope, due to modern GPS using the International Reference Meridian (IRM), which aligns with satellite measurements. But the historic line still draws tourists. 2. The Antimeridian (180° longitude) What it is: Exactly halfway around the world from the Prime Meridian: 180° east / 180° west — they’re the same line.

Here’s a solid, self-contained post explaining the and prime meridian — two fundamental but often misunderstood lines of Earth’s coordinate system. 🌍 The Prime Meridian & Antimeridian: Earth’s Two Most Important Invisible Lines When we talk about location on Earth, most people know the Equator. But just as important are the vertical lines running from North Pole to South Pole: meridians . Among them, two stand out as special: the Prime Meridian and the Antimeridian . antimeridian and prime meridian

(e.g., plotting earthquakes or shipping routes), if you center a map on the Atlantic, the Pacific gets split — but if you center on the Pacific, the Atlantic gets split. No perfect flat map avoids the antimeridian problem. Today, the true zero-longitude line is actually about