The brightest star of the constellation has an apparent magnitude of 1.9. In reality, it consists of two close components separated by 250 light-years. The star serves mainly as a reference point in a relatively poor area of stars. In a telescope, we can reveal two companions with magnitudes of 9 and 10.3. Peacock is a star of spectral class B2 with a diameter 2.5 times larger than the Sun. It shines 1000 times brighter than our Sun from a distance of 183 light-years.