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HD 49674

HD 49674 is an 8th magnitude G-type main-sequence star (spectral type G5V) located approximately 144 light years away in the constellation of Auriga. It has a very similar mass to our Sun. It is orbited by a recently discovered planet.[3]


Planetary system

At the time of discovery of the planet HD 49674 b in 2002, it was the least massive planet known, very close to the boundary between sub-Jupiter mass and Neptune-mass at 0.1 MJ. This planet orbits very close to the star.

The HD 49674 system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity
b >0.105 ± 0.011 MJ 0.0580 ± 0.0034 4.94737 ± 0.00098 0.087 ± 0.095

References

1. ^ a b c d e van Leeuwen, F. (2007). "HIP 32916". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=32824. Retrieved 2010-03-14.
2. ^ Table 2, Catalog of Nearby Exoplanets, R. P. Butler et al., The Astrophysical Journal 646, #1 (July 2006), pp. 505–522, Bibcode: 2006ApJ...646..505B, doi:10.1086/504701.
3. ^ Butler et al.; Marcy, Geoffrey W.; Vogt, Steven S.; Fischer, Debra A.; Henry, Gregory W.; Laughlin, Gregory; Wright, Jason T. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal 582 (1): 455–466. doi:10.1086/344570. http://www.iop.org/EJ/article/0004-637X/582/1/455/56131.html.
4. ^ Butler et al.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html.


External links

* "Notes for star HD 49674". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=HD+49674. Retrieved 2008-08-23.
* "HD 49674". Extrasolar Visions. http://www.extrasolar.net/planettour.asp?StarCatId=normal&StarId=. Retrieved 2008-08-23.
* HIP 32916 Catalog
* Image HD 49674


See also

* List of extrasolar planets

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