Ross 128 Overview
Ross 128
0.22
R⦿
3135.00
K
Ross 128 b
- Architecture
- Ross 128
- Ross 128
Discovery Data
| Host | Planet | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|---|
| Ross 128 | Ross 128 b | 9.87 d | > 1.4 M⨁ | 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
- -.48414 deg
- Ecliptic Longitude
- 176.86846 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
-
mV11.12±0.10
-
mTESS8.2432700±0.0074268
-
mJ6.505±0.023
-
mH5.945±0.024
-
mKs5.654±0.024
-
mKep9.778
-
mIc8.160±0.008
-
mGaia9.59067±0.00112
-
mB12.860±0.020
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.06±0.04 dex
-
[Mg/H] -0.11±0.07 dex
-
[Si/H] 0.02±0.05 dex
-
Mission
- K2 : Observed in Campaign 1
| 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
- Planetary Systems
| 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 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
-
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
A temperate exo-Earth around a quiet M dwarf at 3.4 parsec
Bonfils et al. 2018 | Reference Overview -
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog | Reference Overview -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Radial Velocities of 889 late-type stars
Nidever et al. 2002 | Reference Overview -
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
The Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
Hawley et al. 1996 | Reference Overview -
UBV(RI)_c photometry of faint nearby stars
Laing 1989 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
- External Link
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