Hellenica World

HD 290327

HD 290327 is a 9th magnitude G-type subgiant star located approximately 179 light years away in the constellation Orion. This star is larger, cooler, fainter, and less massive than our Sun. Also its metal content is seven-ninths as much as the Sun. In 2009, a gas giant planet was found in orbit around the star.
The HD 290327 system[2] Companion
(in order from star) Mass Semimajor axis
(AU) Orbital period
(days) Eccentricity
b ≥2.54+0.17
−0.14 MJ 3.43+0.20
−0.12 2443+205
−117 0.08+0.08

See also

* List of extrasolar planets


1. ^ a b c d e van Leeuwen, F. (2007). "HIP 25191". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=25126. Retrieved 2010-02-28.
2. ^ Naef, D. et al. (2010). "The HARPS search for southern extrasolar planets XXIII. 8 planetary companions to low-activity solar-type stars". Astronomy and Astrophysics 523 (15). doi:10.1051/0004-6361/200913616. http://www.aanda.org/articles/aa/abs/2010/15/aa13616-09/aa13616-09.html. (web Preprint)

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