HD 155358 [SEP] constellation
HD 155358
HD 155358 is a low metallicity yellow dwarf star approximately 43 pc away in the constellation Hercules. This star is known to be orbited by two extrasolar planets.
The star is 11.9 billion years old and has a mass 0.89 times that of the Sun. At the time of the planets' discoveries, it was notable for being the lowest metallicity planet-bearing star known, with an iron-to-hydrogen ratio 21% of the solar value.
Observation.
With a visual magnitude of 7.5
155358 b has mass little bit less than Jupiter but more than Saturn. HD 155358 c has mass half that of Jupiter. However, more accurate masses were needed when inclinations will eventually become known. HD 155358 b orbits at 0.628 AU while c orbits at 1.224 AU.
External links.
- The Extrasolar Planet Encyclopedia: HD 155358
- Extrasolar Planet Interactions by Rory Barnes & Richard Greenberg, Lunar and Planetary Lab, University of Arizona