Planet Barnard's b

Name Barnard's b
Planet Status Controversial
Discovered in 2018
Mass
Mass*sin(i) 0.01016 (± 0.00138) MJ
Semi-Major Axis
Orbital Period 232.8 ( -0.41 +0.38 ) day
Eccentricity 0.32 ( -0.15 +0.1 )
ω 107.0 ( -22.0 +19.0 ) deg
Tperi
Radius
Inclination
Update 2021-05-18
Detection Method Radial Velocity
Mass Detection Method Radial Velocity
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 1.2 (± 0.12) m/s
Calculated temperature 105.0 (± 3.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names GJ 699 b

Star

Barnard's star
Name Barnard's star
Distance 1.8 pc
Spectral type M4V
Apparent magnitude V 9.5
Mass 0.163 (± 0.022) MSun
Age 8.5 (± 1.5) Gyr
Effective temperature 3278.0 (± 51.0) K
Radius 0.178 (± 0.011) RSun
Metallicity [Fe/H]
Detected Disc
Magnetic Field
RA2000 17:57:49.0
Dec2000 +04:41:36
Alternate Names GJ 699
Planetary system 1 planet

More data


Related publications

GTC/CanariCam deep mid-infrared imaging survey of northern stars within 5 pc
2021 GAUZA B., BEJAR V., REBOLO R., ALVAREZ C., ZAPATERO-OSORIO M.-R. et al.
ApJ, accepted
arxiv  

The Detectability of Nightside City Lights on Exoplanets
2021 BEATTY Th.
MNRAS, submitted
arxiv

Stellar Activity Manifesting at a One Year Alias Explains Barnard b as a False Positive
2021 LUBIN J., ROBERTSON P., STEFANSSON G., NINAN J., MAHADEVAN S. et al.
Astron. J., 162, 61
paper   arxiv

Directly imaged exoplanets in reflected starlight. The importance of knowing the planet radius
2020 CARRION-GONZALES O., GARCIA MUÑOZ A., CABRERA J., CSIZMADIA Sz., SANTOS N. & RAUER H.
Astron. & Astrophys., 640, A136
paper  arxiv

The High-Energy Radiation Environment Around a 10 Gyr M Dwarf: Habitable at Last?
2020 FRANCE K., DUVVURI G., EGAN H., KOSKINEN T., WILSON D. et al.
Astron. J., 160, 237
paper   arxiv  

Precision Radial Velocity Measurements by the Forward Modeling Technique in the Near Infrared
2020 HIRANO T., KUZUHARA M., KOTANI T., OMIYA M., KUDO T. et al.
PASJ, submitted
arxiv  

Stellar Spectroscopy in the Near-infrared with a Laser Frequency Comb
2019 METCALF A., ANDERSON T., BENDER Ch., BLAKESLEE S., BRAND W. et al.
Optica, accepted
arxiv  

Breezing through the space environment of Barnard's Star b
2019 ALVARADO-GOMEZ J., GARRAFFO C., DRAKE J., BROWN B., OISHI J. et al.
ApJ. Letters, 875, L12
paper  arxiv  

Precise Radial Velocities of Cool Low Mass Stars With iSHELL
2019 CALE B., PLAVCHAN P., LEBRUN D., GAGNE J., GAO P. et al.
ApJ, accepted
arxiv  

Dim Prospects for Transmission Spectra of Ocean Earths Around M Stars
2019 SUISSA G., MANDELL A., WOLF E., VILLANUEVA G., FAUCHEZ Th. & KOPPARAPU R.
ApJ, submitted
arxiv  

A super-Earth planet candidate orbiting at the snow-line of Barnard's star
2018 RIBAS I., TUOMI M., REINERS A., BUTLER P., MORALES J. et al.
Nature, 563, 365
paper  arxiv

Prospects for detecting the astrometric signature of Barnard's Star b
2018 TAL-OR L., ZUCKER Sh., RIBAS I., ANGLADA-ESCUDE G. & REINERS A.
Astron. & Astrophys., 623, A10
paper  arxiv