Which type of map projection represents great circles as straight lines?

The gnomonic projection is noteworthy because it represents great circles as straight lines. This characteristic is vital in navigation and aviation, as great circles signify the shortest path between two points on the surface of the Earth. On a gnomonic map, any straight line drawn represents the shortest route, enabling navigators to plot their courses efficiently.

In contrast, other types of projections have different focuses or distortions that prevent them from showcasing great circles as straight lines. For instance, stereographic projections preserve angles but distort area and distance, making great circles appear curved. The orthographic projection depicts the Earth as it would appear from space, not maintaining straight-line paths for great circles. Aphylactic is not a standard map projection recognized in cartography and may refer to an alternate concept that does not exist in typical projection discussions. This distinction of the gnomonic projection is what makes it particularly valuable for certain applications in mapping and navigation.