Iota Draconis b
Artist's concept of Iota Draconis b (foreground) orbiting its parent star (center) | |
| Discovery | |
|---|---|
| Discovered by | Frink et al. |
| Discovery date | January 8, 2002 |
| Doppler Spectroscopy | |
| Orbital characteristics | |
| 1.453±0.026 AU | |
| Eccentricity | 0.7010+0.0016 −0.0017 |
| 1.398643 ± 0.000035 a (510.854 ± 0.013 d) | |
| Inclination | 46+27 −19 |
| 87+64 −60 | |
| 2455590.17±0.13 | |
| 89.90±0.30 | |
| Semi-amplitude | 307.6 (± 2.3) |
| Star | Iota Draconis |
| Physical characteristics | |
| 1.1+0.22 −0.19 RJ | |
| Mass | 16.4+9.3 −4.0 MJ |
Iota Draconis b, formally named Hypatia (pronounced /haɪˈpeɪʃiə/ or /hɪˈpeɪʃə/), is an exoplanet orbiting the K-type giant star Iota Draconis about 101.2 light-years (31 parsecs, or nearly 2.932×1014 km) from Earth in the constellation Draco. The exoplanet was found by using the radial velocity method, from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.