Ross 128 Overview

Ross 128 0.22 R⦿ 3135.00 K
Ross 128 b
Architecture
Ross 128
Ross 128
Ross 128 b
Discovery Data
Host Planet Method Year Reference Disposition
Ross 128 Ross 128 b Radial Velocity 2017 Bonfils et al. 2018 Confirmed Planet
Ross 128 b
  • Planet parameters drawn from Table 4 in ref. Planet equilibrium temperature value corresponds to albedo=0. (Bonfils et al. 2018)
RA
11h47m45.02s
Dec
+00d47m57.44s
Distance
3.374540±0.000805 pc
Parallax
296.307000±0.069922 mas
Ecliptic Latitude
-0.48414 deg
Ecliptic Longitude
176.87233 deg
Galactic Latitude
59.55577 deg
Galactic Longitude
270.15662 deg
Total Proper Motion
1365.9371779±0.0925812 mas/yr
Proper Motion (RA)
607.678000±0.136884 mas/yr
Proper Motion (Dec)
-1223.3200000±0.0778638 mas/yr
Photometry
mV
11.12±0.10
mTESS
8.2432700±0.0074268
mJ
6.505±0.023
mH
5.945±0.024
mKs
5.654±0.024
mKep
9.778
mIc
8.160±0.008
mGaia
9.59067±0.00112
mB
12.860±0.020
Source TICv8 Gaia DR2 Bonfils et al. 2018 Turnbull 2015 Nidever et al. 2002 Hawley et al. 1996
Teff
(K)
3163.0±157.0
3305.0000+132.2230-9.3333
3192±60 3135 --- ---
M
(M⦿)
0.1786010±0.0200999 --- 0.168±0.017 0.25 --- ---
R
(R⦿)
0.2096280±0.0063757 --- 0.1967±0.0077 0.22 --- ---
Sp. T
--- --- M4 M4.0V --- M4
L
(log10(L⦿))
-2.4020+0.1007-0.1313
---
-2.44+0.04-0.05
--- --- ---
Metallicity
(dex)
--- --- -0.02±0.08 [M/H] --- --- ---
γ
(km/s)
--- --- -30.89946±0.00058 --- -31.1 ---
Age
(Gyr)
--- --- >5 --- --- ---
Prot
(days)
--- --- 123 --- --- ---
ρ
(g/cm3)
27.3338533±0.5915504 --- --- --- --- ---
log g
(log10(cm/s2))
5.047050±0.022658 --- --- --- --- ---
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Source Bonfils et al. 2018
Teq
(K)
301
S
(S)
1.38
Mp sin i
(M)
1.40±0.21
Mp sin i
(MJup)
0.00440±0.00066
e
0.116±0.097
P
(days)
9.8658±0.0070
K
(m/s)
1.39±0.18
a
(au)
0.0496±0.0017
Literature Stellar Spectra (3 Files)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Spectra     echelle grating Optical California Planet Search
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     58 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
1 Confirmed Planets
1 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 K2 Time Series
1 Associated Literature Data
System
Star
Confirmed
Candidate
Refuted
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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