Processing
Pictography painted in oil on panel ‘Picta’ category. Hand-painted in two layers with Maimer and Winsor & Newton colours and worked with magnifying glass. Reliefs in hot chalk, gilding in pure gold leaf; solid wood board with anti-imbalancing crossbars. Solid wood frame gilded in gold leaf. Aging process with colour fading and missing parts. Total dimensions with frame: 70 x 70 cm.
History
Copernican theory is named after Nicholas Copernicus, who in 1543, the year of his death, published the book *De revolutionibus orbium coelestium* (On the Revolutions of the Heavenly Bodies). In this work, Copernicus postulated that the Sun was immobile near the center of the solar system and the universe. In contrast, the Earth, like the other planets in the solar system, occupies an off-center position and makes a motion of annual revolution around the center of its orbit, as well as a motion of daily rotation around its axis, which is inclined about 23° from perpendicular to the Earth's orbital plane. In addition, Copernicus introduced a third fictitious motion, called declination motion, to explain the very slow circular motion of the Earth's axis with respect to the sky of the fixed stars. The resulting effect of this motion is a real precession of the Earth's axis, which makes one complete revolution every approximately 25,800 years, a phenomenon known as the precession of the equinoxes.
Andrea Cellarius, Copernican Planisphere