Planet Ross 128 b

Name Ross 128 b
Planet Status Confirmed
Discovered in 2017
Mass 0.0044 ( -0.00066 +0.00066 ) MJ
Mass*sin(i) 0.0044 ( -0.00066 +0.00066 ) MJ
Semi-Major Axis 0.0496 (± 0.0017) AU
Orbital Period 9.8658 (± 0.007) day
Eccentricity 0.116 (± 0.097)
ω
Tperi
Radius
Inclination
Update 2017-11-17
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 1.39 (± 0.18) m/s
Calculated temperature 256.0 (± 45.0) K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

Ross 128
Name Ross 128
Distance 3.3806 (± 0.0064) pc
Spectral type M4
Apparent magnitude V 11.15
Mass 0.168 (± 0.017) MSun
Age 5.0 Gyr
Effective temperature 3192.0 (± 60.0) K
Radius 0.1967 (± 0.0077) RSun
Metallicity [Fe/H] -0.02 (± 0.08)
Detected Disc
Magnetic Field
RA2000 11:47:44.0
Dec2000 +00:48:16
Alternate Names
Planetary system 1 planet

More data


Related publications

Habitability of exoplanet waterworlds
2018 KITE E. & FORD E.
ApJ, submitted
arxiv  

Stellar and Planetary Characterization of the Ross 128 Exoplanetary System from APOGEE Spectra
2018 SOUTO D., UNTERBORN C., SMITH V., CUNHA K., TESKE J. et al.
ApJL, 860, L15
paper  arxiv  

A temperate exo-Earth around a quiet M dwarf at 3.4 parsecs
2017 BONFILS X., ASTUDILLO-DEFRU N., DIAZ R., ALMENARA J.-M., FORVEILLE Th. et al.
Astron. & Astrophys., in press
paper arxiv