Definition Synonyms
Definition of sidereal - Reverso English Dictionary
Adjective
1.
astronomyTECH. relating to the stars or constellationsTECH.
- The sidereal day is shorter than the solar day..
2.
time measurementTECH. measured by the apparent daily motion of the starsTECH.
- Sidereal time is used by astronomers to locate stars..
Expressions with sidereal
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time Earth takes to rotate once relative to stars
A sidereal day is about 4 minutes shorter than a solar day.
time taken by Earth to rotate 360 degrees relative to distant stars
A sidereal hour is shorter than a solar hour by about four minutes..
time for moon to orbit Earth relative to stars
The sidereal month is about 27.3 days long.
time for a celestial body to orbit another relative to stars
The sidereal period of the Earth around the Sun is about 365.25 days..
time measured by Earth's rotation relative to stars
Astronomers use sidereal time to locate stars.
the Earth's orbital period relative to fixed stars
The sidereal year is about 20 minutes longer than the solar year.
Origin of sidereal
Latin, sidereus (star)
Terms with sidereal included in their meaning
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astronomy
clock showing sidereal time used in observatories
star cycle
sidereal month of about 27.32 days
acr: Local Sidereal Time
time based on Earth's rotation relative to stars
unit
24th part of a sidereal day
Examples of sidereal in a sentence
Astronomers measure sidereal time to track celestial objects. Sidereal tracking is crucial for accurate telescopic observations. The sidereal day is slightly shorter than the solar day.
View all translations of sidereal
Click below to see the appropriate translations facing each meaning.
- French:sidéral, ...
- German:siderisch, ...
- Italian:siderale, ...
- Spanish:sideral, ...
- Portuguese:sideral, ...
- Chinese:恒星的, 根据恒星测量的, ...
- Japanese:恒星の, 恒星時, ...
- Arabic:نَجْمِي, ...
- Hebrew:כּוֹכָבִי, סִידֶרִי, ...
- Russian:звёздный, ...
- Ukrainian:зоряний, зоряний час, ...
- Hindi:नाक्षत्रीय, नाक्षत्रीय समय, ...
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