In the field of Geographic Information Science and especially when using the software ArcMap, it is important to pay particular attention to the different coordinate system used when adding different layers to your map.  For instance, distance, and other properties such as shape, true direction and area are affected when the data is projected into a different coordinate system.

Nevertheless, when using ArcMap, the process of project-on-the-fly temporary changes projection settings to align with the existing layers. If those existing layers were not in place the projection would look much different.

Nevertheless, it is possible to solve this by using ArcToolbox project. Through this software’s Transformation commands it is possible to change map projection permanently in order to make the projection more accurate and to adjust all layers to the same coordinate system.