HD 178911

1

HD 178 911, cataloged as HR 7272, is an approximately 160 light-years distant star system in the constellation Lyra.

The system consists of a spectroscopic binary, HD 178 911 A, which is accompanied by a third star, HD 178 911 B, . The components A and B form a visual double star with an angular distance of 16 ", 10 ± 0" 01 ( a few hundred astronomical units ).

The components of the spectroscopic binary A with the systematic names HD 178 911 and HD 178 911 Aa Ab have an orbital period of 3.55 years and their semi-major axis measures 0 " 074

Component B has with HD 178 911 Bb also a spectroscopic companion, which is possibly an exoplanet.

HD 178 911 B

HD 178 911 B is a star of spectral type G and has an apparent magnitude of about 8.0 mag. He is with an orbital period of 71.5 days orbiting 178 911 Bb of the potential exoplanet HD. The property has a minimum mass of about 6 Jupiter masses and was discovered using the radial velocity method; its discovery was et in 2002 by sugar. al. published.

Swell

• SIMBAD page for HD 178 911
• . Tokovinin et al: " The Triple System HR 7272 "; In: Astronomy Letters, vol 26, pp. 116ff. (2000)
• Zucker et al: "A Planet Candidate in the Stellar Triple System HD 178 911 ."; In: The Astrophysical Journal, Vol 568, No. 1, pp. 363ff. (2002)

• Lyra ( constellation )
• Binary star
• Star with exoplanet
• Yellow Dwarf