Acrux (α Crucis) is a blue giant star located in the constellation Crux. It's significantly larger than our Sun. Here's a breakdown:

* Radius: Acrux is about 12 times larger than our Sun. That means if you were to replace our Sun with Acrux, it would engulf Mercury, Venus, Earth, Mars, and even Jupiter!

* Mass: Acrux is about 14 times more massive than our Sun. This greater mass is what fuels its larger size and luminosity.

While its exact size and mass are estimated based on observations and models, Acrux is a truly impressive celestial object.