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Latitude: 51.4773 / 51°28'38"N
Longitude: -0.0009 / 0°0'3"W
OS Eastings: 538926
OS Northings: 177270
OS Grid: TQ389772
Mapcode National: GBR L1.QFJ
Mapcode Global: VHGR7.X4W9
Plus Code: 9C3XFXGX+WJ
Entry Name: Altazimuth Pavilion at the Royal Observatory
Listing Date: 21 August 2002
Grade: II
Source: Historic England
Source ID: 1031860
English Heritage Legacy ID: 489754
ID on this website: 101031860
Location: Greenwich Park, Greenwich, London, SE10
County: London
District: Greenwich
Electoral Ward/Division: Greenwich West
Parish: Non Civil Parish
Built-Up Area: Greenwich
Traditional County: Kent
Lieutenancy Area (Ceremonial County): Greater London
Church of England Parish: Greenwich St Alfege
Church of England Diocese: Southwark
Tagged with: Building
786/0/10144 Altazimuth Pavilion at the Royal
21-AUG-02 Observatory
GV II
Altazimuth house incorporating garden shelter. Circa 1899. In grounds of New Physical Laboratory built between 1890 and 1899, in same style and probably by same hand, William Crisp in close collaboration with W H M Christie, Astronomer Royal. Built of red brick in Flemish bond with terracotta decoration and roof covered in C20 synthetic roof covering. Comprises one storey polygonal structure, open to one side with elaborate porches at each side and central dome with elaborate cast iron finial with sun emblem and coved cornice with oculi to observe stars and planets. North west side has five sashes with horns and only the upper parts glazed. Porches have terracotta moulding of triglyphs and paterae, elaborate console brackets and oculus above a terracotta doorcase with engaged fluted and rusticated Tuscan columns and entablature with triglyphs and eared architrave with panel inscribed "ALTAZIMUTH". There are interior panels and double doors with eight panels, the top two panels glazed and three concrete steps. Elaborate octagonal cast iron lamps with star finial on either side of porches. South east side is a garden shelter with five open cambered arches, ribbed ceiling and wooden seats. Three steps to ground. Interior not seen.
An altazimuth is a structure for measuring the altitude and azimuth of a celestial body.
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