Planet 4U 1626-67 b

Detailed information about planet 4U 1626-67 b and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

4U 1626-67 b

Planet Status

Confirmed

Discovered in

1988

Update

2024-06-30

Mass

41.88

M_J 1 publication

The torque reversals of 4U 1626-67

Mass*sin(i)

—

Semi-Major Axis

0.002037 (\pm 1.37e-05)

Orbital Period

0.027777 day 1 publication

4U 1626-67: The Binary with the Smallest Known Mass Function

Eccentricity

—

ω

—

T_peri

—

Radius

0.778 (\pm 0.0973)

R_J 2 publications

4U 1626-67: The Binary with the Smallest Known Mass Function
4U 1626-67: The Binary with the Smallest Known Mass Function

Inclination

23.5 (\pm 12.5)

deg

Detection Method

Timing, Kinematic

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

KZ TrA b

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

First detection of a periodicity imputable to an orbital companion dates back to 1977 (Rappaport et al. 1977).

No link

Star

Name

4U 1626-67

Distance

4500.0 (\pm 1500.0)

pc 1 publication

4U 1626-67: The Binary with the Smallest Known Mass Function

Spectral type

PSR

Apparent magnitude V

—

Mass

1.4 M_Sun

Age

—

Effective temperature

—

Radius

2e-05 R_Sun

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

16:32:16.8

Dec₂₀₀₀

-67:27:39.3

Alternate Names

KZ TrA

No remarks

No link

Simbad
Most recent references (ADS)

Planet 4U 1626-67 b

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Planet 4U 1626-67 b

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 1 planet

Remarks No remark

Other web pages No page

More data 2 references

Related publications

The torque reversals of 4U 1626-67

XRBcats: Galactic low-mass X-ray binary catalogue

4U 1626-67: The Binary with the Smallest Known Mass Function

Discovery of a 7.68 second X-ray periodicity in 3U 1626-67.