Apse

This article is about an architectural feature; for the astronomical term see apsis.

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In Romanesque, Byzantine and Gothic Christian abbey, cathedral and church architecture, the apse (Latin absis "arch, vault"; sometimes written apsis; plural apses) is the semi-circular or polygonal section of the sanctuary at the liturgical east end beyond the altar (plan, right). The semicircular projection (which may be polygonal on the exterior, or reveal the radiating projections of chapels) may be roofed with a half-dome or with radiating vaulting. A simple apse may be merely embedded within the wall of the east end. Eastern orthodox churches may have a triple apse, which is usually a mark of Byzantine influence when it is seen in Western churches. Smaller subsidiary apses may be found around the choir or even at the ends of transepts.

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Compare the exedra of Classical architecture, which may be considered apsidal, a feature of the secular Roman basilica, which provided some prototypes for Early Christian churches. The apse in the Roman basilica was often raised (as the sanctuary generally still is) as a hieratic feature that set apart the magistrates who deliberated within it. Where an apse contains an altar or throne it can be architecturally referred to as a tribune

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An exedra or apse may be reduced in scale to form a niche within the thickness of walling; a niche does not reveal its presence by projecting on the exterior.

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The interior of the apse is traditionally a focus of iconography, bearing the richest concentration of mosaics, or painting and sculpture, towards which all other decoration may tend.

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Various architectural features that may form part of the apse are drawn together here:

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Romanesque: Romanesque may refer to:...

Byzantine: The word Byzantine refers to:...

Gothic: Besides its original meaning, "of or relating to the Goths (Gothos, Getas), a Germanic tribe" and thus the Gothic language and the Gothic alphabet, the word Gothic has been used to refer to distinctly different things:...

Apse related Images and Photos (experimental)

Angel from the Apse circa 1100

Christ Enthroned Surrounded by the Apostles and Saints Pudentiana and Praxedis in the Apse