Edition Topoi

Ancient Sundials

© Gerd Graßhoff
‹ Ancient Sundials

Dialface ID 20

ObjID20-1

ObjID20-1

Holder:
Soprintendenza Speciale per i Beni Archeologici di Napoli e Pompei, Pompei, Italy
Site:
Pompei, Italy
Material:
Tufa
Dating:
before 79 CE
Type:
Sphere, Spherical-cut dials--central gnomon point
Inventory Number:
34222
Site Geolocation:
Lat.: 40.7503, Long.: 14.4871
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Abstract

The sundial is unadorned, but there are some construction lines visible on the top.

Measurements

Measurement record: pipeline ObjID 20, matched to this dialface by inventory number.

Quality gradeB (completeness 15 %)
Dial surfacesphere (preferred, not decisive) · fit residual mm: cone 0.09, cylinder 0.19, sphere 0.09
Latitude φno latitude determined
Engraved lines2 hour lines, 0 day lines
Cone half-angle αnot applicable or not determined
Measured2026-06-12 21:04

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References

  • – Gibbs, Sharon L., Greek and Roman Sundials, New Haven and London, 1976, p. 135, p. 137, plate 3.
  • – Severino, Nicola, De Monumentis Gnomonicis apud graecos et romanos. Le meridiane greco-romane. La storia, il catalogo, gli articoli, Roccasecca, 2003, p. 26.

3D Models

3D Point Selections

showing 1 - 5 of 11 items

Hour Line 1Hour Line 1
Hour Line 2Hour Line 2
Plane BackPlane Back
Plane BottomPlane Bottom
Plane EastPlane East

Computations

1 Simple Idealized Cut Sundial1 Simple Idealized Cut Sundial

DOI

10.17171/1-1-128

Citation

Berlin Sundial Collaboration, Ancient Sundials, Dialface ID 20, Pompei, Inv. Nr. 34222, 2014, Edition Topoi, DOI: 10.17171/1-1-128

Citable

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