Planetary System
In 2001 an extrasolar planet similar in size to Jupiter designated HD 28185 b was discovered in orbit around the star with a period of 1.04 years. Unlike many long-period extrasolar planets, it has a low orbital eccentricity. The planet experiences similar insolation to Earth, which has led to speculations about the possibilities for habitable moons. In addition, numerical simulations suggest that low-mass planets located in the gas giant's Trojan points would be stable for long periods. The planet's existence was independently confirmed by the Magellan Planet Search Program in 2008.
The star also shows evidence of a long-term radial velocity trend, which may indicate the presence of an additional outer companion.
| Companion |
Mass | Semimajor axis |
Orbital period |
Eccentricity | Radius |
|---|---|---|---|---|---|
| b | ≥5.7 MJ | 1.031 ± 0.060 | 383 ± 2 | 0.07 ± 0.04 | — |
Read more about this topic: HD 28185
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