HD 169405

HD 169405 (HR 6894), is a suspected binary star system in the southern constellation Telescopium, about a degree to the north of Zeta Telescopii. It has an apparent magnitude of 5.44, making it faintly visible to the naked eye under ideal conditions. HD 169405 is located at a distance of $0.855$ and is drifting away with a heliocentric radial velocity of $2.11$.

The visible component has a spectral classification K0.5III which indicates that it is an evolved star between a K0 and K1 giant. It has expanded to ten times the Sun's radius, shines at 35 solar luminosities, and has an effective temperature of $3.041$. This temperature gives it the yellowish-orange glow of a K-type star, and it spins slowly with a projected rotational velocity of $−54.895$.