Planet BR B1222-1221

Detailed information about planet BR B1222-1221 and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

BR B1222-1221

Planet Status

Confirmed

Discovered in

1993

Publication Status

Published in a refereed paper

Update

2025-09-30

Mass

78.27 (\pm 25.76)

M_J 1 publication

The Hawaii Infrared Parallax Program. VI. The Fundamental Properties of 1000+ Ultracool Dwarfs and Planetary-mass Objects Using Optical to Mid-infrared Spectral Energy Distributions and Comparison to BT-Settl and ATMO 2020 Model Atmospheres

Mass*sin(i)

—

Semi-Major Axis

—

Orbital Period

—

Eccentricity

—

Angular distance

—

ω

—

T_peri

—

Radius

0.91

R_J 1 publication

Bioverse: GMT and ELT Direct Imaging and High-Resolution Spectroscopy Assessment – Surveying Exo-Earth O2 and Testing the Habitable Zone Oxygen Hypothesis

Inclination

—

Detection Method

Imaging

Mass Meas. Method

Spectrum

Radius Meas. Method

—

Primary transit

—

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

2541.0 K 1 publication

Bioverse: GMT and ELT Direct Imaging and High-Resolution Spectroscopy Assessment – Surveying Exo-Earth O2 and Testing the Habitable Zone Oxygen Hypothesis

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	Reference
CrH
CrH	Measurements	Detected	1999 - MARTIN E.L.
Cs I
Cs I	Measurements	Detected	1999 - MARTIN E.L.
FeH
FeH	Measurements	Detected	1999 - MARTIN E.L.
H2O
H2O	Measurements	Detected	1999 - MARTIN E.L.
K I
K I	Measurements	Detected	1999 - MARTIN E.L.
Na I
Na I	Measurements	Detected	1999 - MARTIN E.L.
TiO
TiO	Measurements	Detected	1999 - MARTIN E.L.
VO
VO	Measurements	Detected	1999 - MARTIN E.L.