Lexic.us

Definition of Sidereal

1. Adjective. Of or relating to the stars or constellations. "The sidereal system"

2. Adjective. (of divisions of time) determined by daily motion of the stars. "Sidereal time"

Definition of Sidereal

1. a. Relating to the stars; starry; astral; as, sidereal astronomy.

Definition of Sidereal

1. Adjective. Of or relating to the stars. ¹

2. Adjective. (astronomy) Relating to a measurement of time relative to the position of the stars. ¹

¹ Source: wiktionary.com

Definition of Sidereal

1. pertaining to the stars [adj]

Medical Definition of Sidereal

1. 1. Relating to the stars; starry; astral; as, sidereal astronomy. 2. Measuring by the apparent motion of the stars; designated, marked out, or accompanied, by a return to the same position in respect to the stars; as, the sidereal revolution of a planet; a sidereal day. Sidereal clock, day, month, year. See Clock, Day, etc. Sideral time, time as reckoned by sideral days, or, taking the sidereal day as the unit, the time elapsed since a transit of the vernal equinox, reckoned in parts of a sidereal day. This is, strictly, apparent sidereal time, mean sidereal time being reckoned from the transit, not of the true, but of the mean, equinoctial point. Origin: L. Sidereus, from sidus, sideris, a constellation, a star. Cf. Sideral, Consider, Desire. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Sidereal

sidepaths sidepiece sidepieces sideproduct sidequest sidequests sider sideral sideramine siderate

siderated siderates sideration siderazot siderazote sidereal (current term) sidereal day sidereal hour sidereal month sidereal time

sidereal year sidereal years sidereous siderite siderites sideritic sidero- sideroad sideroads sideroblast

Literary usage of Sidereal

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Principles and Practice of Surveying by Charles Blaney Breed, George Leonard Hosmer (1908)
"SOLAR AND sidereal INTERVALS. — On account of the earth's motion in its orbit the sun ... If a chronometer were regulated to sidereal time and a watch were ..."

2. An Introduction to Practical Astronomy: With a Collection of Astronomical Tables by Elias Loomis (1855)
"The sidereal time at the preceding Washington mean noon is .......... Ih. 48m. ... Add the mean time, reduced to its sidereal equivalent ............. 7h. ..."

3. An Introduction to Practical Astronomy: With a Collection of Astronomical Tables by Elias Loomis (1892)
"The sidereal time at the preceding Washington mean noon is Ih. 48m. 55.82s. ... Add the mean time, reduced to its sidereal equivalent 7h. 57m. 9.82s. ..."

4. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1861)
"2557, fast of sidereal time for this station (at '-I'-lh. 34/«. of Aug. ... OO; or per sidereal hour, + Os.125. Mean Solar Chronometer No. ..."

5. The Principles and Practice of Surveying by Charles Blaney Breed, George Leonard Hosmer (1908)
"sidereal Day. — A sidereal day is the interval of time between two ... sidereal Time. — The sidereal time at a given meridian at any instant is the hour ..."

6. Navigation and Nautical Astronomy: The Practical Part, Containing Rules for by H. W. Jeans (1853)
"Let <c = the length of the sidereal year, then sidereal year : mean solar ... sidereal year = 365a 6h 9m lls-5 t The sidereal day, the apparent solar day, ..."

7. A Manual of Spherical and Practical Astronomy: Embracing the General by William Chauvenet (1871)
"The following method of converting the sidereal into the mean time is ... Aim. is given the "Mean Time of sidereal 0*." This quantity, which we may denote ..."

8. An Introduction to Astronomy by Forest Ray Moulton (1916)
"sidereal Time. — sidereal time is the time defined by the rotation of the earth with ... A sidereal day is the interval between the passage of the meridian, ..."

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