Mimosa (star)
Based on parallax measurements, Mimosa is 277 light years from Earth. In 1957, German astronomor Wulff-Dieter Heintz discovered that it is a spectroscopic binary with components that are too close together to resolve with a telescope. The pair orbit each other every five years with a guessed separation that changes from 5.4 to 12.0 AU. The age of the system is only 8 to 11 million years.