Iota Horologii b
Artistic rendering of Iota Horologii b with hypothetical rings | |
| Discovery | |
|---|---|
| Discovered by | Kürster et al. |
| Discovery site | La Silla Observatory |
| Discovery date | 29 July 1999 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 0.91 AU (136 million km) | |
| Eccentricity | 0.22 ± 0.06 |
| 311.3 ± 1.3 d | |
| Inclination | 87°±6° |
| 2,451,308.8 ± 10.4 | |
| 78.9 ± 13.1 | |
| Semi-amplitude | 57.1 ± 5.2 |
| Star | Iota Horologii |
| Physical characteristics | |
| Mass | 6.2±0.5 MJ |
Iota Horologii b (ι Hor b / ι Horologii b), often catalogued HR 810 b, is an extrasolar planet approximately 56.5 light-years away in the constellation of Horologium (the Pendulum Clock). Iota Horologii b has a minimum mass 2.26 times that of Jupiter; astrometric measurements from Gaia suggest it has a true mass of 6.2 MJ.