Encyclopedia > Nadir

Article Content

Nadir

In astronomy, Nadir refers to the point just below your feet. More precisely, it is the point on the sky with an altitude of -90 Degrees, or opposite to Zenith.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Islandia, New York

... village. The population density is 529.3/km² (1,369.6/mi²). There are 1,031 housing units at an average density of 178.5/km² (461.9/mi²). The ...