Planet GJ 22 Bb

Detailed information about planet GJ 22 Bb and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

GJ 22 Bb

Planet Status

Confirmed

Discovered in

2008

Update

2024-07-11

Mass

15.4 (\pm 2.8)

M_J 1 publication

A methodology for studying physical and dynamical properties of multiple stars. Application to the system of red dwarfs Gl 22

Mass*sin(i)

— 1 publication

On the dynamical stability of the very low-mass object Gliese 22 Bb

Semi-Major Axis

3.41 (\pm 0.1)

AU 1 publication

On the dynamical stability of the very low-mass object Gliese 22 Bb

Orbital Period

5475.0 (\pm 182.5)

day 1 publication

A methodology for studying physical and dynamical properties of multiple stars. Application to the system of red dwarfs Gl 22

Eccentricity

0.08 (\pm 0.05)

2 publications

On the dynamical stability of the very low-mass object Gliese 22 Bb
A methodology for studying physical and dynamical properties of multiple stars. Application to the system of red dwarfs Gl 22

ω

347.0 (\pm 5.0)

deg 1 publication

On the dynamical stability of the very low-mass object Gliese 22 Bb

T_peri

—

Radius

—

Inclination

47.0 (\pm 5.0)

deg 1 publication

On the dynamical stability of the very low-mass object Gliese 22 Bb

Detection Method

Other

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

—

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

GJ 22 B

Distance

9.85629 (\pm 0.046325)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

M3V

Apparent magnitude V

12.19

Mass

0.177 M_Sun 1 publication

On the dynamical stability of the very low-mass object Gliese 22 Bb

Age

—

Effective temperature

3598.0 K 1 publication

Radial Velocity Photon Limits for the Dwarf Stars of Spectral Classes F-M

Radius

0.2 R_Sun

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

00:32:27.0

Dec₂₀₀₀

+67:14:09.0

Alternate Names

BD+66 34 B, VYS 2 B

GJ 22 B is the secondary component of a widely separated (a = 32.6 AUs) binary system with P = 223.3 y. The primary component GJ 22 A (*V547 Cas, spT M3V) is itself binary (a = 5.01 AUs, P = 15.64 y) with a low-mass M dwarf companion (m_Ab = 0.138 M_Sol).

No link