Tau Cygni, Latinised from τ Cygni, is a binary star system in the constellation Cygnus, approximately 69 light years away from Earth.

It therefore has a surface temperature of 6,000 to 7,500 kelvins and is larger, hotter, and several times as bright as the Sun.

[5] Its companion, 6th magnitude GJ 822.1 B, is a yellow main sequence star of the spectral type G0V.

It is similar to the Sun in size, surface temperature, and luminosity.

[6] Tau Cygni is classified as a δ Scuti variable.