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| Discovery[1] | |
|---|---|
| Discovered by | Fischer et al. |
| Discovery site | Lick Observatory and Keck Observatory |
| Discovery date | 2003 |
| Doppler spectroscopy | |
| Orbital characteristics[2] | |
| 0.295±0.029 AU | |
| Eccentricity | 0.645±0.02 |
| 62.250±0.004 d | |
| 243±3 º | |
| Semi-amplitude | 16.6±0.6 m/s |
| Star | 54 Piscium A |
| Physical characteristics[2] | |
| Mass | ≥0.228±0.011 MJ |
54 Piscium b (HD 3651 b), occasionally catalogued as 54 Piscium Ab to differentiate from the brown dwarf in the system, is an extrasolar planet[3][1] approximately 36 light-years away[4] in the constellation of Pisces. It was discovered orbiting the orange dwarf star 54 Piscium. Its minimum mass is one-fifth that of Jupiter, and it orbits the star in a very eccentric orbit about every two months.
- ^ a b Cite error: The named reference
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Butler2006was invoked but never defined (see the help page). - ^ Cite error: The named reference
Gaia DR2was invoked but never defined (see the help page).