hour angle

hour an·gle

H h

Transcription

- US Pronunciation
- US IPA
- [ouuh r, ou-er ang-guh l]
- /aʊər, ˈaʊ ər ˈæŋ gəl/

- US Pronunciation
- US IPA
- [ouuh r, ou-er ang-guh l]
- /aʊər, ˈaʊ ər ˈæŋ gəl/

Definitions of hour angle words

noun hour angle the angle, measured westward through 360°, between the celestial meridian of an observer and the hour circle of a celestial body. 1
noun hour angle the angular distance along the celestial equator from the meridian of the observer to the hour circle of a particular celestial body 0
noun hour angle the angle formed at the pole, or its arc on the celestial equator, between the hour circle of a celestial object and the observer's celestial meridian measured in hours, minutes, etc.: it represents the elapsed time since the object passed directly over the observer 0

See all 3 definitions of hour angle

Information block about the term

Origin of hour angle

First appearance:

before 1830

One of the 36% newest English words

First recorded in 1830-40

Historical Comparancy

Parts of speech for Hour angle

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Hour angle

hour angle popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 36% of English native speakers know the meaning and use word.

According to our data about 67% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

hour angle usage trend in Literature

This diagram is provided by Google Ngram Viewer