Kremlin stars

Vector representation of a Kremlin star
The red star at the Spasskaya Tower

The Kremlin stars (Russian: Кремлёвские звёзды, romanizedKremlyovskiye zvyozdy) are pentagonal luminescent ruby stars, installed in the 1930s on five towers of the Moscow Kremlin, replacing gilded eagles that had symbolized Imperial Russia. In 1937, these stars were replaced with new ones made of ruby glass, in time for the 20th anniversary of the October Revolution. One more star was also installed on the Vodovzvodnaya tower.

The symbols become a part of the state and the ruling ideology of the former USSR, complementing the official coat of arms, which is complex in its image. The designing of the red star was commissioned by Fyodor Fedorovsky.