Geodesy and Celestial Mechanics

A map projection is a mathematical method used to represent the curved surface of the Earth on a flat plane.

Lines of latitude, also known as parallels, measure the distance north or south of the equator. The Prime Meridian is used as the reference point for longitude.

A hemisphere is defined as half of a sphere or globe, typically divided by the equator into northern and southern halves or by the prime meridian into eastern and western halves.

Absolute location is the precise point on Earth identified by a specific coordinate system, such as latitude and longitude. Relative location describes where something is in relation to other landmarks.

Try try but don't cry

The average distance from the Earth to the Moon is approximately 238,855 miles. Option D is the closest approximation among the choices provided.

The Moon's average density is about 3.34 g/cm^3, while Earth's is about 5.51 g/cm^3. This ratio is approximately 60 percent.

A sidereal day, the time taken for one full rotation on its axis, is approximately 23 hours, 56 minutes, and 4 seconds.

Absolute location is the exact position of a place on Earth, typically defined by a coordinate system like latitude and longitude.

Map scale represents the relationship between the distance on the map and the corresponding distance on the actual ground.

A coordinate system, such as latitude and longitude, provides a unique set of numbers to pinpoint any precise location on Earth.

Telescope used to see distant object in earth are Terrestial telescope.