太阳传感器是使用在太空船上传感太阳位置的导航仪器 ，它是姿态控制仪器的一部分。

• 天文导航
• 星体追踪仪

A sun sensor is a navigational instrument used by spacecraft to detect the position of the sun. Sun sensors are used for attitude control, solar array pointing, gyro updating, and fail-safe recovery.

In addition to spacecraft, sun sensors find use in ground-based weather stations and sun-tracking systems, and aerial vehicles including balloons and UAVs.