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== References == |
== References == |
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* {{cite |
* {{cite journal | eprint=0903.3593 | title=Planetary companion candidates around the K giant stars 42 Draconis and HD 139357 | journal=Astronomy & Astrophysics | year=2009 | volume= | issue= | pages= | last1=Doellinger | first1=M. P. | last2=Hatzes | first2=A. P. | last3=Pasquini | first3=L. | last4=Guenther | first4=E. W. | last5=Hartmann | first5=M. | last6=Girardi | first6=L. | class=astro-ph.EP{ida{}} |
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{{Sky|15|35|16.1992|+|53|55|19.717|396}} |
{{Sky|15|35|16.1992|+|53|55|19.717|396}} |
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[[Category:K-type giants]] |
[[Category:K-type giants]] |
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Revision as of 01:13, 19 April 2009
HD 139357 is a 6th magnitude K-type giant star located approximately 396 light years away in the constellation of Draco. It has mass four thirds that of our Sun but its radius is 11.47 times larger. However despite being a giant star, this star is only 3.07 billion years old, which is younger than our Sun. In addition to these, this star hosts a planet discovered in 2009.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >9.76 ± 2.15 MJ | 2.36 ± 0.2 | 1125.7 ± 9 | 0.1 ± 0.02 | — | — |
See also
References
- Doellinger, M. P.; Hatzes, A. P.; Pasquini, L.; Guenther, E. W.; Hartmann, M.; Girardi, L. (2009). "Planetary companion candidates around the K giant stars 42 Draconis and HD 139357". Astronomy & Astrophysics. arXiv:0903.3593.
{{cite journal}}: Unknown parameter|class=ignored (help)
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