The Milky Way doesn't have "main stars" in the sense of a single group that dominates the galaxy. It's a massive collection of billions of stars, with various types and ages scattered throughout. However, we can highlight some of the most notable stars and features:

Notable Stars:

* Our Sun: This is our closest star, a yellow dwarf. While not the biggest or brightest, it's crucial for life on Earth.

* Sirius (Alpha Canis Majoris): The brightest star in our night sky, a binary star system with a white dwarf companion.

* Proxima Centauri: The closest star to our Sun, a red dwarf in the Alpha Centauri system.

* Betelgeuse (Alpha Orionis): A red supergiant star, one of the largest and brightest stars in our night sky.

* Polaris (Alpha Ursae Minoris): The North Star, a yellow supergiant, used for navigation.

* Vega (Alpha Lyrae): A blue-white main sequence star, one of the brightest stars in our sky.

* Arcturus (Alpha Boötis): An orange giant star, one of the brightest in the northern hemisphere.

Notable Features:

* The Galactic Center: A dense region in the Milky Way, containing a supermassive black hole called Sagittarius A*.

* The Sagittarius Arm: One of the major spiral arms of the Milky Way, containing numerous star-forming regions.

* The Perseus Arm: Another major spiral arm, also home to many star-forming regions.

* The Galactic Bulge: A central region of the Milky Way, densely populated with stars.

* The Galactic Halo: A spherical region surrounding the Milky Way, containing older stars and globular clusters.

It's important to note that the Milky Way is a vast and complex galaxy, and there are many other interesting stars and features beyond these examples.