What is the time value of 15 degrees longitude?

What is the time value of 15 degrees longitude?

But how does that give you your longitude?” “Well, suppose the time at Greenwich is 3 PM when its 12:00 hours (noon) where you are. The time difference is 3 hours. Each hour is equal to 15° of longitude.

Are lines of longitude 15 degrees apart?

They are farthest apart at the equator and converge at the poles. A degree of longitude is widest at the equator with a distance of 69.172 miles (111.321 kilometers). At 40 degrees north or south, the distance between a degree of longitude is 53 miles (85 kilometers).

What is the value of 1 degree longitude?

One-degree of longitude equals 288,200 feet (54.6 miles), one minute equals 4,800 feet (0.91 mile), and one second equals 80 feet.

How do you calculate degrees of longitude?

The Earth rotates one full turn (360º of longitude) in one day. It therefore turns one degree of longitude in 1/360th of a day, or every four minutes. To calculate your longitude, you therefore simply need to work out the time difference between noon at your location and noon at the Prime Meridian.

How many degrees apart are longitude lines?

Each meridian measures one arcdegree of longitude. The distance around the Earth measures 360 degrees. The meridian that runs through Greenwich, England, is internationally accepted as the line of 0 degrees longitude, or prime meridian. The antimeridian is halfway around the world, at 180 degrees.

How many miles apart are longitude lines?

The distance between longitudes at the equator is the same as latitude, roughly 69 miles. At 45 degrees north or south, the distance between is about 49 miles (79 km). The distance between longitudes reaches zero at the poles as the lines of meridian converge at that point.

What is the degree of longitude?

What is meant by linear distance of a degree of latitude?

The distance between lines of latitude remains constant. One degree of latitude equals 60 nautical miles (approximately 69 statute miles, or 111 km). Longitudes, or meridians, are great circles that run north and south, converging at the north and south geographic poles.

How do you calculate latitude and longitude?

First, always assume that the top of the map is north. The numbers on the right and left side of a map refer to the latitude. The numbers on the top and bottom of the map are the longitude.