Stellar astronomy is the study of stars. It includes the study of their formation, evolution, and death. Stellar astronomers also study the properties of stars, such as their temperature, luminosity, and composition.
Plane surveying is the process of determining the relative positions of points on the Earth’s surface. It is used to create maps and charts.
Geodetic surveying is the process of determining the shape and size of the Earth. It is used to create accurate maps and charts.
Planet observations are the study of planets. It includes the study of their formation, evolution, and atmospheres. Planet astronomers also study the properties of planets, such as their size, mass, and orbit.
The correct answer is C. Star observations.