Planet gamma Lib b

Detailed information about planet gamma Lib b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

gamma Lib b

Planet Status

Confirmed

Discovered in

2018

Update

2024-08-06

Mass

1.029 (\pm 0.087)

M_J

Mass*sin(i)

1.029 (\pm 0.087)

M_J

Semi-Major Axis

1.2397 (\pm 0.0007)

AU 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Orbital Period

415.2 (\pm 1.9)

day 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Eccentricity

0.25 (\begin{matrix} + 0.02 \\ - 0.031 \end{matrix})

1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

ω

219.1 (\begin{matrix} + 6.6 \\ - 10.9 \end{matrix})

deg 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

T_peri

2450047.0 (\begin{matrix} + 14.0 \\ - 16.0 \end{matrix})

JD 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Radius

—

Inclination

—

Detection Method

Radial Velocity

Mass Meas. Method

Radial Velocity

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

22.0 (\pm 2.2)

m/s 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

gam Lib b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

No remarks

No link

Star

Name

gamma Lib

Distance

50.2 (\pm 0.4)

pc 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Spectral type

K0III

Apparent magnitude V

3.0

Mass

1.47 (\pm 0.2)

M_Sun 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Age

2.8 (\begin{matrix} + 5.0 \\ - 2.0 \end{matrix})

Gyr 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Effective temperature

4822.0 (\pm 15.0)

K 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Radius

11.1 (\begin{matrix} + 1.0 \\ - 0.3 \end{matrix})

R_Sun 1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Metallicity [Fe/H]

-0.3 (\pm 0.03)

1 publication

Planets around the evolved stars 24 Booties and γ Libra: A 30d-period planet and a double giant-planet system in possible 7:3 MMR

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

15:35:32.0

Dec₂₀₀₀

-14:47:22.0

Alternate Names

Zubenelhakrabi, gam Lib, 38 Lib, BD-14 4237 A, GOL 1 A

Uncertain multiplicity. An Aa-Ab component was inferred with separation of 0.1 arcseconds (~5 AUs at 50 pc), allegedly coinciding with either of the two substellar companions detected by Takarada et al. (2018), which might instead be stellar rather than substellar. A third visual component (BD-14 4237 B or GOL 1 B, spT G2IV-V) is located 41.3 arcseconds away (2065 AUs at 50 pc), although ExoFOP TESS provides a greater distance for this star (253 pc) which seemingly refutes companionship.

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