No…there are number bigger stars in our glalaxy to make sun feel smaller. But talking of the largest one in our galaxy…it is the VY CANIS MAJORIS How big it is? Here is the comparison to give the clear picture. read more
In this list are some examples of more distant extragalactic stars, which may have slightly different properties and natures than the currently largest known stars in the Milky Way: Some red supergiants in the Magellanic Clouds are suspected to have slightly different limiting temperatures and luminosities. read more
This red supergiant in Cepheus is about 1,650 times the radius of our Sun. It is also one of the brightest stars in the Milky Way galaxy, with more than 38,000 times the Sun's luminosity. It also has the nickname"Herschel's Garnet Star" due to its pretty reddish color. read more