What is the UY Scuti star? The UY Scuti star is the 38th variable star of the constellation Scutum, and it is a red supergiant star. UY Scuti is called in accordance with the international standard for designation of variable stars, and it is the biggest star in the universe. UY Scuti's huge size makes it over 300,000 times brighter than the Sun, but isn't a particularly bright star in our night sky. You can find it almost 6,000 lightyears away in the constellation of Scutum, The Shield, which is only visible in the Southern Hemisphere. UY Scuti is a red supergiant star and a pulsating variable star in the constellation Scutum. It is one of the largest and most luminous stars known, with a radius of 909 solar radii and a luminosity of 124,000 solar luminosities. UY Scuti (stylized in all caps) is the fourth studio album by American rapper and singer Young Thug. It was released through YSL, Atlantic Records, and 300 Entertainment on September 26, 2025.