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HD 43691

HD 43691 is a G-type star with magnitude +8.03 located approximately 260 light-years away in the constellation Auriga. This yellow star is about to stop thermonuclear hydrogen-fusion in its core and eventually expand to become a red giant.

Planetary system

In July 2007, the star is found to have a giant planet in orbit around it.[4] It has minimum mass two and a half times that of Jupiter and orbits the star closer than Mercury to the Sun.

The HD 43691 system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >2.49 MJ 0.24 36.96 ± 0.02 0.14 ± 0.02

See also

* List of extrasolar planets


References

1. ^ a b c d e van Leeuwen, F. (2007). "HIP 30057". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=29981. Retrieved 2010-03-06.
2. ^ "HIC 30057". SIMBAD. http://webviz.u-strasbg.fr/viz-bin/VizieR-S?HIC%2030057. Retrieved 2008-10-17.
3. ^ "Notes for star HD 43691". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+43691. Retrieved 2008-08-18.
4. ^ a b c Silva et al. (2007). "ELODIE metallicity-biased search for transiting Hot Jupiters IV. Intermediate period planets orbiting the stars HD 43691 and HD 132406" (abstract). Astronomy and Astrophysics 473 (1): 323–328. doi:10.1051/0004-6361:20077314. http://www.aanda.org/articles/aa/abs/2007/37/aa7314-07/aa7314-07.html. (web preprint)


External links

* "Image HD 43691". SIMBAD. http://aladin.u-strasbg.fr/AladinPreview?-c=06+19+34.6771%2B41+05+32.302&ident=HD++43691&submit=Aladin+previewer. Retrieved 2008-10-17.

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