Conclusion
The angle of declination is a term commonly used in astronomy and navigation. It refers to the angle between the magnetic north and true north, and it is an important factor in determining the direction of compass needles and the position of celestial bodies. In this article, we will explore the definition and meaning of the angle of declination, its origin, associations, synonyms, antonyms, and example sentences.
Definitions
The angle of declination is defined as the angle between the magnetic north and true north at a particular location on the Earth’s surface. It is measured in degrees and is used to calculate the position of celestial objects in the sky. The angle of declination varies depending on the location on the Earth’s surface and changes over time due to the movement of the magnetic poles.
Origin
The concept of the angle of declination has been known since ancient times, and it was used by navigators and astronomers to determine the position of the stars and the direction of compass needles. The term itself comes from the Latin word “declinatio,” which means “a turning aside.” The angle of declination was first measured accurately in the 17th century by the English astronomer Edmund Halley.
Meaning in different dictionaries
The angle of declination is defined in various dictionaries as the angle between the magnetic north and true north at a particular location on the Earth’s surface. It is also described as the deviation of a magnetic needle from true north, or the angular distance of a celestial object from the celestial equator.
Associations
The angle of declination is associated with navigation, astronomy, and geology. It is used by sailors, pilots, and hikers to determine their direction and location. Astronomers use it to calculate the position of stars and other celestial objects. Geologists use it to study the Earth’s magnetic field and its effects on the planet’s crust.
Synonyms
Some synonyms of the angle of declination include magnetic declination, magnetic variation, and compass deviation.
Antonyms
There are no direct antonyms of the angle of declination, but it is sometimes contrasted with the angle of inclination, which refers to the angle between the Earth’s magnetic field and its surface.
The same root words
The root words of the angle of declination are “declinatio” and “declination,” which both mean “a turning aside” or “a deviation.”
Example Sentences
- The angle of declination at this location is 10 degrees east.
- The compass needle is pointing 5 degrees west of true north due to the angle of declination.
- Astronomers use the angle of declination to locate stars in the sky.
- The angle of declination is affected by the movement of the Earth’s magnetic poles.
- The angle of declination is an important factor in navigation and geology.
The angle of declination is a crucial concept in astronomy and navigation, and it is used to determine the position of celestial objects and the direction of compass needles. It has a long history and has been used by sailors, pilots, and hikers for centuries. Understanding the angle of declination is essential for anyone who wants to navigate the Earth’s surface or study the stars in the sky.