Aldebaran Ab
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Jump to navigationJump to searchOrbital distance: 1.35 AU
Orbital period: 1.79 standard years
Eccentricity: 0.182
A rumored giant planet in the orbit of Aldebaran A, in the Aldebaran system; a possible brown dwarf. It appears to move around Aldebaran A with an average separation of 1.35 AUs with a period of almost 654 days, or about 1.8 years, with an eccentric orbit.
The discovery has yet to be confirmed, and some astronomers suspect that the radial velocity variations may actually reflect a long-term oscillation in Star A itself. In fact, it is extremely difficult to confirm the detection of this substellar object around a highly evolved star like Aldebaran, because giant stars often pulsate and produce radial velocity patterns similar to substellar companions.
