The Michelson stellar interferometer is an astronomical instrument used to measure the properties of celestial objects, particularly their angular diameters and surfaces. It is based on the principle of interference of light waves, originally developed by Albert A. Michelson in the late 19th century. The design consists of two main parts: two mirrors and a beam splitter. ### Key Components: 1. **Beam Splitter**: A device that divides incoming light from a star into two separate beams.
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