Determine Position. Test 1

In celestial navigation the angle measured westward from the first point of aries to the hour circle of the body along the celestial equator is known as:

Azimuth angle
Sidereal hour angle
Greenwich hour angle
Local sidereal time

When taking a compass error by amplitude in the higher latitudes when is the best time to take the bearing?

When the sun is a diameter above the horizon
When the lower limb just touches the horizon
When the center of the sun is on the horizon
Calculate the time of the sunset and take the bearing then

What is the advantages of a GPS-satellite system compared to other navigational aids?

The GPS system gives information about weather- and waveconditions in the area.
The GPS system has built in a group of six radio-beacons called a Decca-chain.
The GPS system gives information about position, speed and time continuously world wide.
The GPS system is based on hyperbola navigation.

Review Answers

Determine Position. Test 1

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