HD 117440
HD 117440, also known by its Bayer designation d Centauri, is a binary star in the constellation Centaurus. It is approximately 900 light years from Earth.
Both components are yellow G-type giant stars. The primary, d Centauri A, has an apparent magnitude of +4.5, while the secondary, d Centauri B, has an apparent magnitude of +4.7. The two stars orbit around their common centre of mass once every 83 years and the secondary has a semi-major axis of 0.161 arcseconds.
