Aldebaran b
Aldebaran b is a candidate exoplanet orbiting the orange giant star Aldebaran, 65 light-years away. It was initially detected in 1993, but was considered doubtful until 2015, when researchers came to a conclusion that there is likely an exoplanet orbiting Aldebaran, consistent with the original calculations, but also compatible with stellar activity. However, in 2019, new data placed doubts on its existence again.
| Discovery | |
|---|---|
| Discovery date | 1993 (dubious) May 15, 2015 (confirmed) |
| Radial velocity | |
| Orbital characteristics | |
| Apastron | 1.606 +0.2105 −0.2375 AU |
| Periastron | 1.314 +0.3295 −0.3025 AU |
| 1.46 ± 0.27 AU (218,000,000 ± 40,000,000 km) | |
| Eccentricity | 0.1 ± 0.05 |
| 628.96 ± 0.9 d | |
| 1999/04/28 ± 50 | |
| 287 ± 29 | |
| Star | Aldebaran |
| Physical characteristics | |
| Mass | >5.8±0.7 MJ |
| Temperature | 1,500 K (1,230 °C; 2,240 °F) |
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