About Lesson
Magnetic Declination and Its Variations
- Magnetic Declination is the horizontal angle between the magnetic meridian and the true meridian.
Types of Declination
|
Direction |
Description |
Sign |
|
East (θ E) |
North end of the needle lies to the east (right) of true meridian |
Positive (+) |
|
West (θ W) |
North end of the needle lies to the west (left) of true meridian |
Negative (−) |