unit:MIN_Sidereal
http://qudt.org/vocab/unit/MIN_Sidereal
unit:MIN_Siderealqudt:Unit| Predicate | Object |
|---|---|
rdf:type |
qudt:Unit |
dcterms:description |
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. |
qudt:applicableSystem |
|
qudt:conversionMultiplier |
59.83617 |
qudt:conversionMultiplierSN |
5.983617E1 |
qudt:hasDimensionVector |
qkdv:A0E0L0I0M0H0T1D0 |
qudt:hasQuantityKind |
quantitykind:Time |
qudt:informativeReference |
http://en.wikipedia.org/wiki/Sidereal_time |
qudt:scalingOf |
unit:SEC |
qudt:symbol |
“min{sidereal}” |
qudt:wikidataMatch |
http://www.wikidata.org/entity/Q101435276 |
rdfs:isDefinedBy |
http://qudt.org/3.1.11/vocab/unit |
rdfs:label |
|