Planet tau Cet g

Name tau Cet g
Planet Status Confirmed
Discovered in 2017
Mass
Mass*sin(i) 0.00551 ( -0.0013 +0.00079 ) MJ
Semi-Major Axis 0.133 ( -0.002 +0.001 ) AU
Orbital Period 20.0 ( -0.01 +0.02 ) day
Eccentricity 0.06 ( -0.06 +0.13 )
ω 35.341 ( -84.8 +36.1 ) deg
Tperi
Radius
Inclination
Update 2021-03-30
Detection Method Radial Velocity
Mass Detection Method Radial Velocity
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 0.49 ( -0.11 +0.07 ) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

tau Cet
Name tau Cet
Distance 3.65 (± 0.002) pc
Spectral type G8.5 V
Apparent magnitude V 3.5
Mass 0.783 (± 0.012) MSun
Age 5.8 Gyr
Effective temperature 5344.0 (± 50.0) K
Radius 0.793 (± 0.004) RSun
Metallicity [Fe/H] -0.55 (± 0.05)
Detected Disc Imaging +
Magnetic Field
RA2000 01:44:04.0
Dec2000 -15:56:15
Alternate Names
Planetary system
4 planets

More data

Observability Predictor

Remarks

Feng et al. (2017) : To be consistent with the names used by Tuomi et al. 2013, the new signals at periods of 20 and 49d are named τ Ceti g and h.

Related publications

High contrast imaging at ten microns, a search for exoplanets around: Eps Indi A, Eps Eri, Tau Ceti, Sirius A and Sirius B
2021 PATHAK P., PETIT dit de la ROCHE D., KASPER M., STERZIK M., ABSIL O. et al.
Astron. & Astrophys., 652, A121
.paper   arxiv

An Integrated Analysis with Predictions on the Architecture of the tau Ceti Planetary System, Including a Habitable Zone Planet
2021 DIETRICH J. & APAI D.
Astron. J., 161, 17
paper  arxiv  

A Stellar Activity F-statistic for Exoplanet Surveys (SAFE)
2021 HOLZER P., CISEWSKI J., ZHAO L., FORD E., GILBERTSON Ch. & FISCHER D.
Astron. J., 161, 272
paper   arxiv

GTC/CanariCam deep mid-infrared imaging survey of northern stars within 5 pc
2021 GAUZA B., BEJAR V., REBOLO R., ALVAREZ C., ZAPATERO-OSORIO M.-R. et al.
ApJ, accepted
arxiv  

Stellar and substellar companions from Gaia DR2
2021 KERVELLA P., ARENOU F., MIGNARD F., THEVENIN F., SCHNEIDER J. et al.
SF2A 2021
paper  

YARARA: Significant improvement in RV precision through post-processing of spectral time series
2021 CRETIGNIER M., DUMUSQUE X., HARA N. & PEPE F.
Astron. & Astrophys., 653, A43
paper   arxiv

Data Reduction Pipeline of the TOU Optical Very High Resolution Spectrograph and Its sub-m/s Performance
2019 MA B. & GE J.
MNRAS, 486, 760
paper   arxiv  

Color difference makes a difference: four planet candidates around tau Ceti
2017 FENG F., TUOMI M., JONES H., BARNES J., ANGLADA-ESCUDE G. et al.
Astron. J., 154, 135
paper  arxiv  

How alien can alien worlds be?
2017 ADIBEKYAN F., FIGUEIRA P. & SANTOS N.
in EWASS Special Session 4 (2017): Star-planet interactions
arxiv  

ALMA Observations of the Debris Disk of Solar Analogue Tau Ceti
2016 MacGREGOR M., LAWLER S., WILNER D., MATTHEWS B., KENNEDY G. et al.
ApJ, 828, 113
paper  arxiv  ADS

Signals embedded in the radial velocity noise. Periodic variations in the tau Ceti velocities
2013 TUOMI M., JONES H., JENKINS J., TINNEY Ch., BUTLER P. & 11 additional authors
Astron. & Astrophys., 551, A79
paper  arxiv  

The debris disc around tau Ceti: a massive analogue to the Kuiper Belt.
2004 GREAVES J., WYATT M ., HOLLAND W. & DENT W.
MNRAS, 351, L54
paper