There are many common misconceptions about binary star systems,
one of the most common myths is that binary star systems are the cosmic
oddity and that single star systems are the most prevalent, when,
in fact, the opposite is true. 50 years ago binary stars were considered
a rarity. Now, most of the stars in our galaxy are known to be paired
with a companion or multiple partners.
Just because we cannot see it does not mean it does not exist. We
now know that many stars cannot be seen including blackholes, neutron
stars and many brown dwarfs. Furthermore, long cycle binary systems
(those with orbit periods of thousands or tens of thousands of years)
may be quite difficult to detect because of the very long observation
For nearby Sun-like stars, more than 55 percent are confirmed to be
in double, triple, or quadruple relationships. Total estimates are
higher, with NASA's Chandra website reporting that up to 80 percent
of all stars are in multiple star relationships. Therefore, it should not be unexpected to discover that our sun might be part of a binary or multiple star system.