Naked eye

If something can be seen with the naked eye, it means that it can be seen without using a microscope, binoculars, glasses or a telescope. In astronomy, a naked-eye object is something, such as a star, that the general public can see without using these tools.

 Other websites 
 Naked Eye Observing in Astronomy
 Naked-Eye Stargazing: Learning the Sky and its constellations
 Naked Eye Navigation , Polynesia Voyages

Category:Observational astronomy
Category:Vision