St Wilfrid's Church, Halton-on-Lune St Wilfrid's Church, Halton-on-Lune St Wilfrid's Church is an Anglican church in Halton-on-Lune, a village in the English county of Lancashire. It is an active parish church in the Diocese of Blackburn and the archdeaconry of Lancaster. Halton may have been the site of an ancient Anglo-Saxon minster. Of the current structure, the tower dates from the 16th century and the remainder was built 1876–77 by Paley and Austin. The church is recorded in the National Heritage List for England as a designated Grade II listed building. At the time of the Norman conquest of England in 1066, Halton was
Spherical lune the second half great circle has moved a full circle, and the lune in between covers the sphere as a spherical monogon — the area formula for the spherical lune gives 4π"R", the surface area of the sphere. A hosohedron is a tessellation of the sphere by lunes. A n-gonal regular hosohedron, {2,n} has "n" equal lunes of π/"n" radians. An "n"-hosohedron has dihedral symmetry D, ["n",2], (*22"n") of order 4"n". Each lune individually has cyclic symmetry "C", [2], (*22) of order 4. Each hosohedra can be divided by an equatorial bisector into two equal spherical triangles. The visibly lighted