anomalistic year
- noun
- /əˌnɑːməˈlɪstɪk jɪr/
- Specialized
:
año anómalo
- An anomalistic year measures approximately 365 days, 6 hours, and 13 minutes.
Examples
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An anomalistic year is slightly longer than a tropical year due to the Earth's shifting orbit.
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Astronomers calculate the anomalistic year to account for changes in Earth's distance from the Sun.
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The difference between a sidereal year and an anomalistic year is small but significant in celestial mechanics.
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An anomalistic year lasts about 365 days.
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The anomalistic year is slightly longer than a calendar year.
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An anomalistic year is the time it takes for the Earth to return to the same position in its elliptical orbit around the Sun.
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To understand Earth's seasonal changes, scientists study the anomalistic year and its effects on climate.
Surface Forms
Morphology
The phrase is a straightforward adjective+noun composition: 'anomalistic' describes the type of 'year' (one defined by the orbital anomaly/periapsis), so the overall meaning (a year measured from perihelion to perihelion) follows directly from the constituent senses. It is technical vocabulary, so while the term is transparent if a learner knows 'anomalistic', it will be unintelligible to those who do not know that specialized adjective.
Etymology
Anomalistic year comes from measuring the Earth's path from one time it is 'closest' to the Sun to the next. Because that 'closest point' slowly moves, the Earth needs a little extra time to return to it, so the term means 'the time between one closest approach and the next'.
