Nadir is employed during remote sensing of the atmosphere, as well as when an astronaut faces the Earth while performing a spacewalk. The term nadir can also be used to represent the lowest point reached by a celestial body during its apparent orbit around a given point of observation. This can be used to describe the location of the Sun, but it is only technically accurate for one latitude at a time and only possible at the low latitudes. The sun is said to be at the nadir at a location when it is at the zenith at the location's antipode
Homage to the Highest Power Homage to the Highest Power Homage to the Highest Power (朝元圖) is a prime example of Daoist paintings in the Royal Ontario Museum collection. The wall painting was created during the late Yuan Dynasty, c. 1271 – 1368 AD. The painting is colored pigments mixed with clay and plaster. It measures 306.5 cm high and 1042 cm in length. This painting is similar to those found in Sanqing Hall of the Yongle Monastery in Shanxi province. The Sanqing Hall paintings are dated by an inscription to 1325 AD. Based on the strong stylistic affinities, this work can also be dated