The style or pin, which by its shadow, shows the hour of the day. It is usually set parallel to the earth's axis.
A style or column erected perpendicularly to the horizon, formerly used in astronomocal observations. Its principal use was to find the altitude of the sun by measuring the length of its shadow.
The projecting arm of a sundial, also known as the style. It casts a shadow, the tip of which points to markings round the rim of the dial that show the time. For accurate reading, the angle of the gnomon must be related to the latitude in which the sundial is set.
The sundial’s shadow caster. It can be a stick, a triangle, or any number of other shapes depending on the shape of the shadow sought by the dial designer.
A ``stick'' on a sundial that casts a shadow on the face of the sundial. The postion and/or length of the shadow gives the time and date.
A rod mounted on a tripod in such a way that it is free to swing in any direction and indicates the local vertical; it gives Sun position and serves as size scale. Color and reflectance scales are provided on the rod and a colorimetric reference is mounted on one leg.
(pron. no-mon) the physical structure of a sundial which casts the shadow (from the Greek for "indicator"). The gnomon today is most-often polar pointing (sometimes described as an "axial gnomon"), although it may also be horizontal or vertical. The distinction between gnomon and style made (and encouraged in this Glossary) in modern dialling literature is not the one used in early works, and the two words are still sometimes used interchangably.
indicator provided by the stationary arm whose shadow indicates the time on the sundial
a device which indicates vertical
a vertical shaft or column erected on a horizontal plane
(1) A vertical pole of known length embedded into a perfectly level plot of ground or slab of concrete. This device was used by the ancient Egyptians as a method of timekeeping, but its disadvantages are that the hour marks, unlike those of a sundial, are not fixed and move throughout the year. (See Obervations Using the Gnomon) The triangular plane, or style, that stands vertically on the surface of a sundial. (See Construction and Use of a Sundial)
(i) The "pointer" in a sundial. (ii) Vertical stick, rod or pillar, the length and direction of whose shadow indicates the altitude of the Sun and the time of day.
A vertical pin whose shadow, projected on a horizontal base, indicates the altitude of the sun.
A vertical stick or marker that casts a shadow for the purpose of determining time.
the part of a sundial that casts the shadow for indicating the time.
A rod placed in the ground for the purpose of constructing a sundial.
noo mon) the earliest known type of clock, was simply a vertical stick stuck in the ground and casting a shadow... then later an obelisk statue, and then you watched its shadow on the ground... which later became paved stone of fancier display.
The pointer of a sundial which casts the shadow.
The stationary arm that projects the shadow on a sundial.
An object that by its position or shadow, serves an indicator as to the position of the sun.
The "stick" on a sundial that casts the shadow. Also known as a "style".
The gnomon is the part of a sundial which casts the shadow. Gnomon is an ancient Greek word meaning "indicator", "one who discerns," or "that which reveals." In the northern hemisphere, the shadow-casting edge is normally oriented so that it points north and is parallel to the rotation axis of the Earth.
