Yes. Zeta Tauri, Kappa Tauri, and Lambda Tauri are eclipsing binary stars.
Binary stars can be any color that stars can be. There's no need for the two stars in a binary to be the same color.
Binary stars are very useful for determining the mass of the stars and thus any objects orbiting around them.
Binary stars can appear in a variety of colors depending on the characteristics of the individual stars. The colors can range from blue or white for hotter stars to red for cooler stars. The combination of these colors can create unique visual effects when viewed together in the sky.
Two stars orbiting each other are "binary stars" ...a group of stars near each other, may be formally or informally known as a "cluster".
Roughly half of all stars in the galaxy are estimated to be part of binary or multiple star systems. This means approximately 50% of stars are binary stars.
Atlas is at least three stars. It's a visual binary with components Atlas A and Atlas B; Atlas A is itself a spectroscopic binary. I can't find the exact sizes of any of the components, but Atlas A is type III star or giant if that helps any.
Binary stars
By definition, a binary star system has two stars in it.
Binary what? Binary numbers? Binary stars? Binary fission?
the orbits of binary stars
"Binary" means there are two stars. And "protostar" means the stars are in an early, or preliminary, stage.
binary stars are two stars that orbit each other while supernovas and novas stars are stars that explode when it runs out of fuel