Planet CHXR 73 b

Detailed information about planet CHXR 73 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

CHXR 73 b

Planet Status

Confirmed

Discovered in

2006

Publication Status

—

Update

2025-12-15

Mass

12.0 (\begin{matrix} + 8.0 \\ - 5.0 \end{matrix})

M_J 1 publication

Discovery of a Young Substellar Companion in Chamaeleon

Mass*sin(i)

—

Semi-Major Axis

200.0 AU 1 publication

Discovery of a Young Substellar Companion in Chamaeleon

Orbital Period

—

Eccentricity

—

Angular distance

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Imaging

Mass Meas. Method

—

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

ISO-ChaI 78 b, ISO-ChaI 76 Bb, 2MASS J11062877-7737331 b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

08 Mar 2011: The common proper motion with the parent star has not been demonstrated yet. But the probability of alignement by chance is 0.1% (Luhman et al. 2006).

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Star

Name

CHXR 73

Distance

—

Spectral type

M3.25

Apparent magnitude V

—

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

0.35 (\pm 0.0)

M_Sun 1 publication

Discovery of a Young Substellar Companion in Chamaeleon

Age

0.002 Gyr 1 publication

Discovery of a Young Substellar Companion in Chamaeleon

Effective temperature

—

Radius

—

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

11:06:29.0

Dec₂₀₀₀

-77:37:33.0

Alternate Names

ISO-ChaI 78, ISO-ChaI 76 B, 2MASS J11062877-7737331

Michel & Mugrauer (2021, 2024): An M dwarf companion star (ISO-ChaI 76 or [CCE98] 2-19, spT M2.75e) lies 8808 AUs away. CHXR 73 turns out to be the secondary component of a widely separated binary system.

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