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An angle of declination is relevant when an observer is at a higher altitude than the object being observed. It is the angle made by the line of sight with the horizontal. Suppose this is angle x. Then if the altitude of the observer is known to be h, then line-of-sight distance to the object is h*sin(x). The object is h*tan(x) from the point below the observer at the level of the object.

Conversely, if the line-of-sight distance from the object to the observer or the horizontal distance to the point directly below the observer is known, it is possible to calculate the height of the observer.

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Q: What is the angle of declination and how do you use it?
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In order to find true north with a compass you must use an angle of correction called?

angle of magnetic declination


What is the angle of correction called?

Magnetic Declination


What is a magnet declination?

Magnet declination is the angle between magnetic north and true north. Declination is considered positive east of truth north and negative when west.


How is the altitude angle and zenith angle related to latitude and declination?

solar altitude angle= (90 degree - zenith angle )


What is the optimun angle of declination?

Zero degrees! If the angle of declination is 0°, then magnetic north is exactly the same as true north, making it much easier to navigate. But really, there isn't any "optimum" angle. One angle is just as good as another as long as you know how to correct for it in the right way.


How do you find magnetic direction?

The angle between the direction your compass points and the direction you're facing is the 'magnetic azimuth'. The angle between the direction to the north pole and the direction you're facing is the 'true azimuth'. They are virtually never the same angle. The difference between them is the 'magnetic declination' or the 'compass declination' in the place where you are at in which.


To convert a grid azimuth to a magnetic azimuth you will need to know g-m angle. where would you look for this piece of information?

Declination Diagram


Blank is how far around the map the star is?

Declination, which is measured as an angle, north is positive and south is negative. The declination of a star etc. is also the latitude at which the star passes overhead.


The angle of difference between the geographic and magnetic poles is called the declination How does the declination change as you move north from where you live?

The angle between the geographic and magnetic poles extends more towards the east, as you move to the north. The magnetic pole is actually near Greenland.


What is inclination and declination?

Inclination is measured as the angle at which the satellite crosses the equator while passing from the southern hemisphere to the northern hemisphere. Declination is the difference between magnetic North as reported by a compass and true North.


What is the angle between the geographic North Pole and the direction in which a compass needle points is called magnetic?

Magnetic declination


The closest terrestrial analog to hours of right ascension is angle of longitude?

yes. latitude is to declination, as longitude is to right ascension.