ObjID61-1
‹ Ancient Sundials
Dialface ID 58
Abstract
Two chunky short lion legs flank the concave frontLP ending in five-toed feet with claws. A flower with four petals and four diagonal small leaves sits between them. Gibbs: The gnomon hole is 28.5 mm deep.
Measurements
Measurement record: pipeline ObjID 61, matched to this dialface by inventory number.
| Quality grade | B (completeness 95 %) |
|---|---|
| Dial surface | cone (preferred, not decisive) · fit residual mm: cone 1.19, cylinder 1.40, sphere 2.79 |
| Latitude φ | 53.86 ± 5.02° (consensus of witnesses) |
| Klima | Borysthenes (VII), Mid-Pontus (VI), Massalia |
| Engraved lines | 11 hour lines, 3 day lines |
| Cone half-angle α | 10.4 ± 0.26° (cone residual on all points 1.23 mm) |
| Measured | 2026-06-12 20:59 |
What the dial shows at this latitude
| Winter solstice | Equinox | Summer solstice | |
|---|---|---|---|
| Noon altitude of the Sun | 12.4° | 36.1° | 59.8° |
| Noon shadow (gnomon heights) | 4.54 | 1.37 | 0.58 |
| Length of the day | 7.1 h | 12.0 h | 16.9 h |
| Length of a seasonal hour | 35 min | 60 min | 85 min |
Computed for the measured latitude with the obliquity of the JPL ephemeris at 101 BC (year -100). The latitude is the one the dial was made for, not a find-spot coordinate.
References
- – Gibbs, Sharon L., Greek and Roman Sundials, New Haven and London, 1976, p. 172.
- – Lesétre, H., Cadran Solaire, Paris, 1926, p. 23-28.
- – Millin, A. L., Voyage dans les departements du Midi de la France, Paris, 1807, p. 143.
- – Queyrel, François, Un nouveau document sur la collection Choiseul-Gouffier, 2007, p. 1149f., 1152, fig. 6.
- – de Clarac, F., {Musée du Louvre, Département des antiquités grecques, étrusques et romaines}, Musée de sculpture antique et moderne, Paris, 1841, pl. 254, no. 652.
3D Models
