On the routeplotter page of this website you can create and edit your routes, the length of the route is displayed under the map. Editing routes is only possible when you are logged in. In order to create your login a unique nickname is enough, no personal data is required . On the message page you can congratulate the fine webmaster, when you are logged in other users cannot see your questions. If you are not logged in you can only consult predefined routes and messages can be seen by every visitor.

For the amateurs there is an astronavigation tutorial which you can use for free. This course tries to give you a theoretical background for computations.