The masses of the two stars.
Chat with our AI personalities
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.
Double stars, also called binary stars, are valuable to astronomers because they are the only stars of which astronomers can easily calculate their mass. They are bound to each other by gravity and orbit about a common center. The time it takes for one star to orbit the other depends on the distance between the two stars and their masses.
Stars found in pairs are called binary stars. Binary stars orbit around a common center of mass due to gravitational attraction between 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.