Planet HD 221356 Bb

Detailed information about planet HD 221356 Bb and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HD 221356 Bb

Planet Status

Confirmed

Discovered in

2002

Update

2024-08-28

Mass

54.4 (\begin{matrix} + 7.8 \\ - 3.8 \end{matrix})

M_J 2 publications

The Gaia ultracool dwarf sample - V: the ultracool dwarf companion catalogue
Southern very low mass stars and brown dwarfs in wide binary and multiple systems

Mass*sin(i)

—

Semi-Major Axis

15.0 AU 2 publications

Southern very low mass stars and brown dwarfs in wide binary and multiple systems
Hubble space telescope observations of binary very low mass stars and brown dwarfs

Orbital Period

—

Eccentricity

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Imaging, Astrometry

Mass Meas. Method

Astrometry

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

HD 221356 C, Koenigstuhl 3 C, Koenigstuhl 3 Bb, 2MASS J23310161-0406193

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Spectral type L3. Third component of a multiple system including a late F to early G main sequence star with a brown dwarf 312 AUs away and a low-mass pair 11,900 AUs away. The latter is the HD 221356 B-C subsystem, composed of a late M dwarf and an L-type brown dwarf separated by 0.573 arcseconds (about 15 AUs at 26 pc).

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