Planet ET Cha b

Detailed information about planet ET Cha b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

ET Cha b

Planet Status

Confirmed

Discovered in

2020

Publication Status

—

Update

2024-07-11

Mass

50.3

M_J 1 publication

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): A close low mass companion to ET Cha

Mass*sin(i)

—

Semi-Major Axis

13.0 (\begin{matrix} + 2.0 \\ - 4.0 \end{matrix})

AU 1 publication

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): A close low mass companion to ET Cha

Orbital Period

—

Eccentricity

0.22 (\begin{matrix} + 0.08 \\ - 0.07 \end{matrix})

1 publication

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): A close low mass companion to ET Cha

Angular distance

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Imaging

Mass Meas. Method

Spectrum

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

13 Jul 2020:
The 50 M_Jup estimate is assuming a 5 Myr age of the system. If the age is 8 Myr, the mass is 0.1 M_Sol (Ginski et al. 2020). However the former age estimate seems to be favoured. Depending on assumed mass and modelled eccentricity, average separation may vary.

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