Tau Ceti
Planetary system

Tau Ceti

Section Title: Planetary system
Table Section Text: None

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius

b	≥2.00 ± 0.80 M⊕	0.105 ± 0.006	13.965 ± 0.024	0.16 ± 0.22	—	—

c	≥3.1 ± 1.40 M⊕	0.195 ± 0.011	35.362 ± 0.106	0.03 ± 0.28	—	—

d	≥3.60 ± 1.7 M⊕	0.374 ± 0.02	94.11 ± 0.7	0.08 ± 0.26	—	—

e	≥4.30 ± 2.1 M⊕	0.552 ± 0.03	168.12 ± 2.32	0.05 ± 0.22	—	—

f	≥6.6 ± 3.5 M⊕	1.35 ± 0.09 AU	642 ± 37	0.03 ± 0.26	—	—

Debris disk	35–50 (or 2+8 −1–55+5 −5) AU	35±10°	—

Sentence(s)

Tau Ceti is at a 1.35 AU with an orbital period of 642 days.

final_sentence: Tau Ceti is at a 1.35 AU with an orbital period of 642 days.