Struve 1321 is also known as Gl 338, Sigma 1321, and HD 79210. Nearby double system of late orange dwarf flare stars. First observed as a binary star by Struve in 1817. They are separated on average by 108 AUs. Star A is also known as HD 79210, while B is also known as HD 79211. In the 1970s and 1980s, each star was thought to have an unseen companion per radial velocity measurements, which have since been disproved.