Longitude and Latitude
An imaginary line on the surface of the Earth equidistant from the poles
What is the equator?
The intersection of lines of latitude and longitude.
What are geographical coordinates?
A circle on the surface of a sphere that passes through the centre of the sphere, cutting it into two equal parts
What is a great circle?
Semi-circles joining the true/geographical poles of the earth.
What are meridians of longitude?
The angle between the meridian of longitude passing through the observer and the great circle that joins the observer to the object.
What is bearing?
A curved line on the surface of the Earth, cutting all the meridians it meets at the same angle.
What is a rhumb line?
Circles on the Earth's surface that lie parallel to the equator
What are parallels of latitude?
The angle between the meridian of longitude over which an airplane is flying and the line representing the direction the airplane's nose is pointing.
What is true heading?
Semi-great circles as they run from pole to pole and do not completely encircle the Earth
What are the meridians of longitude?
A meridian which passes through Greenwich, England and is numbered zero degrees
What is the prime meridian?
They represent longitude and latitude, every 30 minutes. Small marks represent 1 minute. There are slightly larger marks for 5 minute and 10 minute increments
What are the black lines on a chart?
The direction is constant, allowing a navigator to follow a constant heading
What is the advantage of a rhumb line route?
The meridian on the opposite side of the Earth to the prime meridian is the 180th
What is the international date line?
48° 20' 25.073'' N
70° 59' 58.656'' W
Where is CTC Bagotville?