hour angle
noun · n
Simple meaning
The angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body.
Pronunciation
Say it like this:
owerangguhlSay the bold part a little louder.
IPA pronunciation (US)
ˈaʊɚˈæŋɡəl
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
The angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body
astronomy
The angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
n
In astronomy and celestial navigation, the hour angle is the dihedral angle between the meridian plane (containing Earth's axis and the zenith) and the hour circle (containing Earth's axis and a given point of interest).
Word Aura™
How this word commonly comes across.
Aura for this meaning
This meaning: The angular distance along the celestial equator from the observer's meridian to the hour circle of a given celestial body
Used this way, hour angle is a specialist word that usually carries little praise or criticism of its own. It turns up most in technical or specialist writing contexts.
- Emotional tone
- Neutral
- Formality
- Specialist/technical
- Intensity
- Not strongly marked
- How common
- Specialized
- Connotation
- Clinical and technical
- Usage feel
- Technical and specialized
Where it naturally appears
- Technical/specialist writing
Usage note
In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.