* Sextant: A handheld instrument used to measure the angle between two objects, such as the sun and the horizon.
* Telescope: An optical instrument used to magnify distant objects, such as the stars and planets.
* Transit: A telescope mounted on a fixed axis that is used to track the movement of celestial objects.
* Spectrograph: An instrument used to separate light into its component colors. This can be used to determine the temperature, composition, and motion of celestial objects.
* Radio telescope: A telescope that uses radio waves to detect and study celestial objects.
* CCD camera: A camera that uses a charge-coupled device (CCD) to capture images. CCD cameras are used in astronomy to record images of celestial objects.
* Computer: Computers are used in astrology to perform calculations, store data, and create charts.