Informasjon om omgrepet
Det finst ingen term for omgrepet på det valde språket.
Tilrådd term
min{sidereal}Sidereal Minute (en)
Definisjon
- Sidereal time is a time-keeping system astronomers use to keep track of the direction to point their telescopes to view a given star in the night sky. A mean sidereal day is about $23 h 56 m 4.1 s$ in length. However, due to variations in the rotation rate of the Earth, the rate of an ideal sidereal clock deviates from any simple multiple of a civil clock. In practice, the difference is kept track of by the difference UTC-UT1, which is measured by radio telescopes and kept on file and available to the public at the IERS and at the United States Naval Observatory. A Sidereal Minute is $1/60^{th}$ of a Sidereal Hour, which is $1/24^{th}$ of a Sidereal Day.
Overordna omgrep
På andre språk
-
engelsk
URI
https://vocab.sentier.dev/units/unit/MIN_Sidereal
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