*Question E2A10:
What type of satellite appears to stay in one position in the sky?*  

*Correct Answer is  B: Geostationary*  

### AI Response: (may contain errors)  

To understand why the correct answer is "Geostationary," let's break down the options:

### Correct Answer: Geostationary
- **Definition**: A geostationary satellite orbits the Earth at an altitude of approximately 35,786 kilometers (22,236 miles) above the equator. 
- **Key Feature**: It has an orbital period that matches the Earth's rotation period (24 hours), which means it appears to stay in the same position relative to the Earth's surface.
- **Use**: These satellites are commonly used for communication, weather monitoring, and broadcasting.

### Why the Other Choices are Incorrect:
- **A: HEO (Highly Elliptical Orbit)**  
  - **Description**: HEO satellites have elongated orbits that bring them close to the Earth at one point and far away at another. 
  - **Movement**: They do not stay in one position; instead, they move significantly across the sky.

- **C: Geomagnetic**  
  - **Description**: This term typically refers to satellites that are in orbits influenced by the Earth's magnetic field, often used for scientific research.
  - **Movement**: These satellites do not have a fixed position relative to the Earth's surface.

- **D: LEO (Low Earth Orbit)**  
  - **Description**: LEO satellites orbit at altitudes ranging from about 160 to 2,000 kilometers (100 to 1,200 miles).
  - **Movement**: They move quickly across the sky and do not maintain a fixed position.

### Summary
- **Geostationary satellites** are unique because they match the Earth's rotation, allowing them to appear stationary from the ground.
- Other types of orbits (HEO, geomagnetic, LEO) involve movement across the sky and do not provide the same stationary appearance.

This understanding is crucial for recognizing the different types of satellite orbits and their applications in amateur radio and other fields.