Glossary
Aviation Geography
Longitude
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Definition
The angular distance east or west of the Prime Meridian, measured in degrees
Related Terms
Hemisphere
One half of the Earth divided by the equator (N/S) or Prime Meridian (E/W)
International Date Line (IDL)
An imaginary line roughly along the 180° meridian where the calendar date changes
Latitude
The angular distance north or south of the equator, measured in degrees
Time Zone
A geographic region observing a uniform standard time, typically offset from UTC
Frequently Asked Questions
What is Longitude?
The angular distance east or west of the Prime Meridian, measured in degrees
How does Longitude relate to other aviation concepts?
Longitude is closely related to Hemisphere and International Date Line, among other key aviation concepts.
More in Aviation Geography
Bearing
Continental Airspace
Coordinated Universal Time (UTC)
Flight Corridor
Great Circle Distance (GCD)
Hemisphere
International Date Line (IDL)
Kangaroo Route
Knot (kt)
Latitude
Magnetic Variation
Nautical Mile (NM)
Oceanic Airspace
Polar Route
Statute Mile (SM)
Time Zone
Transatlantic Route
Transpacific Route
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