Minute - Astronomy

Astronomy

In astronomy, the minute is a unit of angle, the minute of right ascension. It is equal to 1⁄60 of an hour of right ascension and can be further divided into 60 seconds of right ascension.

The Earth turns on its polar axis through fifteen minutes of arc in every minute of sidereal time. One minute of arc at the Earth's equator is approximately one nautical mile.

In old astronomical texts, minute can also mean a unit of time equal to 1⁄60 of a day (24 usual minutes). These minutes correspond to the Latin diei scrupulis, and used to express periods of planetary motions. For example, Kepler in Harmonices Mundi gives Saturn's year as 10759D12', that is 10759 (Earth) days, 4 hours, and 48 (usual) minutes (roughly 29.5 years).

Read more about this topic:  Minute

Other articles related to "astronomy":

History Of Scientific Method - Early Methodology
... millennium BC in Mesopotamia, Babylonian astronomy had evolved into the earliest example of a scientific astronomy, as it was "the first and highly successful attempt at giving a refined mathematical description ... In Protagoras (318d-f), Plato mentions the teaching of arithmetic, astronomy and geometry in schools ...
Ernst Zinner
... August 1970) was a German astronomer and noted historian of astronomy ... time his main astronomical work centered on stellar astronomy ... His main speciality and interest, however, was Renaissance Astronomy and the history of astronomical instruments, an area in which he started working ...
Catalina Sky Survey - Educational Outreach
... The CSS has helped with Astronomy Camp showing campers how they detect NEO's ... astrophotography exercise with the 2006 Adult Astronomy Camp ending up with a picture that was featured on Astronomy Picture of the Day ...
Unsolved Problems in Astronomy
... See also Unsolved problems in physics Although the scientific discipline of astronomy has made tremendous strides in understanding the nature of the universe and its contents, there remain some important unanswered ...
Oscar Monnig - Astronomy - Meteoritical Collection
... He questioned witnesses of meteoroid detonations or bolides and organized and financed searching expeditions ... He paid 1 dollar per pound, a price that museums could not match at the time of the Great Depression ...

Famous quotes containing the word astronomy:

    It is noticed, that the consideration of the great periods and spaces of astronomy induces a dignity of mind, and an indifference to death.
    Ralph Waldo Emerson (1803–1882)