Back الدبران b Arabic Алдебаран b Bulgarian Aldebarán b Spanish アルデバランb Japanese 알데바란 b Korean Aldebaran b Polish Aldebaran b Swedish 毕宿五b Chinese
| Discovery | |
|---|---|
| Discovery date | 1993 (dubious) May 15, 2015 (confirmed) 2019 (dubious, again) |
| 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[1] MJ |
| Temperature | 1,500 K (1,230 °C; 2,240 °F) |
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.[2] However, in 2019, new data placed doubts on its existence again.[3]
- ^ Farr, W. (2018). "Aldebaran b's temperate past uncovered in planet search data". The Astrophysical Journal. 865 (2): L20. arXiv:1802.09812. Bibcode:2018ApJ...865L..20F. doi:10.3847/2041-8213/aadfde. S2CID 56049041.
- ^ Hatzes, A.P.; et al. (May 15, 2015). "Long-lived, long-period radial velocity variations in Aldebaran: A planetary companion and stellar activity". Astronomy & Astrophysics. 580: 18. arXiv:1505.03454. Bibcode:2015yCat..35800031H. doi:10.1051/0004-6361/201425519. S2CID 53324086.
- ^ Cite error: The named reference
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