Focus on this artwork and explain the Description.
The central roundel represents God, the Father, surrounded by putti, effectively foreshortened in an impetuous gesture, harking back to Michelangelo, which seems to give rise to the entire motion of the universe below. Eight mosaic panels show the Sun, the Moon, the starry sky and the six known planets as pagan deities depicted in half-length, each accompanied by an angel with colourful feathered wings. The figures are accompanied by the signs of the zodiac.
The sequence of the panels is as follows: the sky; Mercury, the god holding the caduceus (with Virgo and Gemini); Luna, the crescent moon jewelled goddess holding a bow (with Cancer); Saturn, the bearded god holding the scythe (with Aquarius and Capricorn); Jupiter, the king of the gods with his eagle holding a thunderbolt (with Sagittarius and Pisces); Mars, the god of war holding a sword and a shield (with Scorpio and Aries); Sol, the sun-jewelled god holding a bow (with Leo); Venus, the goddess of love with Cupid holding a torch as the Evening Star (with Taurus and Libra). A French engraver, Nicolas Dorigny created a series of plates depicting the mosaics in 1695 for Louis, Duke of Burgundy.
The mosaic panels are surrounded by richly gilded stucco decoration. The blue background creates an optical illusion giving the impression of an architectural framework opening to the sky above the chapel. The panels look like illusionistic skylights between the gilt stucco ribs while God is standing on the edge of the central oculus.The traditional interpretation of the dome is that the composition shows the Creation of the World. Another (disputed) interpretation claims that it represents the cosmos as described by Plato in a Christianized Neoplatonist form. This idea had a widespread popularity in the Renaissance. In this case the dome is a depiction of the Realm of the Soul after Death with God, the Father receiving the soul (of Agostino Chigi) in his new home. The presence of the signs of the zodiac corroborates this interpretation because the signs were symbols of the passage of time in eternity, and they appeared in antique funeral art around the image of the departed.
Nicole Riegel emphasized the role of the angels in the composition: "In view of the important, anything but accessory position of the angels in the panels, there is an unmistakable effort for a reconciliation or interfusion of the Pagan and Christian life view."
Saturn mosaic Cupid Libra Gemini Nicolas Dorigny Scorpio Leo Agostino Chigi Capricorn Sol Cancer Louis, Duke of Burgundy Mercury Taurus Sagittarius Luna Jupiter Virgo Neoplatonist caduceus Plato Mars Aries Pisces Michelangelo Aquarius Venus