In astronomy, an analemma (/ˌænəˈlɛmə/; from Ancient Greek ἀνάλημμα (analēmma) 'support') is a diagram showing the position of the Sun in the sky as seen...

figure-8. An analemma can be pictured by superimposing photographs taken at the same time of day, a few days apart for a year. An analemma can also be...

Orthographic projection (also orthogonal projection and analemma) is a means of representing three-dimensional objects in two dimensions. Orthographic...

Sun, and the Earth and Moon's paired revolutions around each other. The analemma can be used to make approximate predictions of the time of sunrise. In...

inverse proportion of their masses. This system has been proposed for the Analemma Tower concept, which employs the system to suspend a building from a cable...

have done for a heliocentric one, presumably for didactic purposes. The Analemma is a short treatise where Ptolemy provides a method for specifying the...

mean of zero. The equation of time is the east or west component of the analemma, a curve representing the angular offset of the Sun from its mean position...

to the analemma. The dial of Brou in front of the church of Brou in Bourg-en-Bresse, France is an example of the erroneous use of the analemma in the...

position in the sky during the course of the year (see Equation of time and Analemma). Sun-synchronous orbits are mostly selected for Earth observation satellites...

through the year, along with solar noon. These effects are plotted by an analemma. Neglecting atmospheric refraction and the Sun's non-zero size, whenever...