Planet sig Ori Cb

Detailed information about planet sig Ori Cb and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

sig Ori Cb

Planet Status

Candidate

Discovered in

2005

Publication Status

Published in a refereed paper

Update

2025-09-01

Mass

—

Mass*sin(i)

—

Semi-Major Axis

836.0 AU 1 publication

Ultra low-mass star and substellar formation in σ Orionis

Orbital Period

—

Eccentricity

—

Angular distance

2.0

arcsec

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

[BHM2009] SigOri-MAD-4

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Sig Ori Cb is five magnitudes fainter than σ Ori Ca at infrared wavelengths, K band magnitude 14.07, which points to a brown dwarf candidate. A separation of about 2 arcseconds is equal to 836 AUs at 418 pc.

No link

Star

Name

sig Ori C

Distance

418.04 (\pm 15.57)

pc 1 publication

The Revised TESS Input Catalog and Candidate Target List

Spectral type

A2Vn

Apparent magnitude V

8.8

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

2.7 (\pm 0.4)

M_Sun 2 publications

The brightest stars of the σ Orionis cluster
The Revised TESS Input Catalog and Candidate Target List

Age

0.003 Gyr 1 publication

The brightest stars of the σ Orionis cluster

Effective temperature

9774.0 (\pm 677.0)

K 1 publication

The Revised TESS Input Catalog and Candidate Target List

Radius

2.14 (\pm 0.27)

R_Sun 1 publication

The Revised TESS Input Catalog and Candidate Target List

Metallicity [Fe/H]

—

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

05:38:44.1

Dec₂₀₀₀

-02:36:06.3

Alternate Names

STF 762 C, [BHM2009] SigOri-MAD-3

No remarks

No link

Simbad
Most recent references (ADS)

Planet sig Ori Cb

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 0 planets

Remarks No remark

Other web pages No page

More data 2 references

Planet sig Ori Cb

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 0 planets

Remarks No remark

Other web pages No page

More data 2 references

Related publications

The Revised TESS Input Catalog and Candidate Target List

A deep look into the cores of young clusters. I. σ-Orionis

The brightest stars of the σ Orionis cluster

Ultra low-mass star and substellar formation in σ Orionis