Long distance observations
Long-distance observation is any visual observation, for sightseeing or photography, that targets all the objects, visible from the extremal distance with the possibility to see them closely. The long-distance observations can't cover:
- The celestial objects, because they are always far away from the observer. Usually, the subject of their observations is Astrophotography.
- Aircraft spotting, as it refers mostly to aircraft observed in the vicinity of the airport only.
- Satellite watching, which is the subject of Astrophotography.