| HD 2039 b | |
| Discoverer: | Tinney, Butler, Marcy |
| Discovered: | 2002 |
| Apsis: | astron |
| Semimajor: | 2.19± |
| Eccentricity: | 0.68 ± 0.15 |
| Period: | 1192.582 ± 150 d |
| Time Periastron: | 2449645.48 ± 150 |
| Arg Peri: | 223 |
| Semi-Amplitude: | 153 ± 22 |
HD 2039 b is an extrasolar planet orbiting the star HD 2039. It is almost five times as massive as Jupiter and has a very eccentric orbit.