Aldebaran b

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Aldebaran b
Extrasolar planet List of extrasolar planets
Parent star
Star Aldebaran A
Constellation Taurus
Right ascension (α) 04h 35m 55.2s
Declination (δ) +16° 30′ 33″
Distance 65 ly (20 pc)
Spectral type K5III
Orbital elements
Semimajor axis (a) 1.35 AU
Eccentricity (e) 0.182
Orbital period (P) 653.8 d
Physical characteristics
Mass (m) 11 MJ
Discovery information
Discovery date 1997
Discoverer(s) Hatzes et al.
Detection method Doppler Spectroscopy
Discovery status Doubtful
Other designations
Alpha Tauri (A)b, 87 Tauri (A)b, HD 29139 (A)b

Aldebaran b, occasionally known as Aldebaran Ab, is an unconfirmed object approximately 65 light-years away in the constellation of Taurus. Aldebaran b is thought to be either an extrasolar planet or a brown dwarf star.

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