What color are the position (navigation) lights on an aircraft?

Position lights are essential for the identification of an aircraft's orientation during night flying and in poor visibility conditions. The standard color coding for these lights is critical for maintaining safety and situational awareness.

On an aircraft, the left wing displays a red navigation light, while the right wing shows a green navigation light. This color scheme allows other pilots and air traffic controllers to easily determine the aircraft's direction relative to their position. If an observer sees the red light, they know the aircraft is facing them from its left side. Conversely, seeing the green light indicates that the aircraft is coming toward them from its right side.

The other choices provided do not adhere to these established conventions for navigation lights, which are standardized by aviation regulations. Understanding the correct color identification is not only a crucial aspect of safety but also aids in effective communication and coordination among pilots.