Traduzione e analisi delle parole tramite l'intelligenza artificiale ChatGPT
In questa pagina puoi ottenere un'analisi dettagliata di una parola o frase, prodotta utilizzando la migliore tecnologia di intelligenza artificiale fino ad oggi:
- come viene usata la parola
- frequenza di utilizzo
- è usato più spesso nel discorso orale o scritto
- opzioni di traduzione delle parole
- esempi di utilizzo (varie frasi con traduzione)
- etimologia
Cosa (chi) è greenwich hour angle - definizione
![vernal equinox]] direction.<br>Assuming in this example the day of the year is the March equinox so the sun lies in the direction of the grey arrow then this star will rise about midnight. Just after the observer reaches the green arrow dawn comes and overwhelms with light the visibility of the star about six hours before it sets on the western horizon. The Right Ascension of the star is about 18<sup>h</sup>](https://commons.wikimedia.org/wiki/Special:FilePath/Hour angle still1.png?width=200 "vernal equinox]] direction.<br>Assuming in this example the day of the year is the March equinox so the sun lies in the direction of the grey arrow then this star will rise about midnight. Just after the observer reaches the green arrow dawn comes and overwhelms with light the visibility of the star about six hours before it sets on the western horizon. The Right Ascension of the star is about 18<sup>h</sup>")
![Captain [[Robert Roddam]], ''Greenwich''{{'}}s third and final British commander](https://commons.wikimedia.org/wiki/Special:FilePath/Admiral Robert Roddam.jpg?width=200 "Captain [[Robert Roddam]], ''Greenwich''{{'}}s third and final British commander")
.svg?width=200 "French Navy Ensign")
![[[Joseph de Bauffremont]], whose squadron captured ''Greenwich'' off [[San Domingo]]](https://commons.wikimedia.org/wiki/Special:FilePath/Joseph de Bauffremont with M de Broves being welcome into Smyrne by the French Consul 28 September 1766 detail.jpg?width=200 "[[Joseph de Bauffremont]], whose squadron captured ''Greenwich'' off [[San Domingo]]")
.svg?width=200 "Royal Navy Ensign")
Wikipedia
In astronomy and celestial navigation, the hour angle is the angle between two planes: one containing Earth's axis and the zenith (the meridian plane), and the other containing Earth's axis and a given point of interest (the hour circle).
It may be given in degrees, time, or rotations depending on the application. The angle may be expressed as negative east of the meridian plane and positive west of the meridian plane, or as positive westward from 0° to 360°. The angle may be measured in degrees or in time, with 24h = 360° exactly. In celestial navigation, the convention is to measure in degrees westward from the prime meridian (Greenwich hour angle, GHA), from the local meridian (local hour angle, LHA) or from the first point of Aries (sidereal hour angle, SHA).
The hour angle is paired with the declination to fully specify the location of a point on the celestial sphere in the equatorial coordinate system.
