YZ Cet Overview
YZ Cet
0.18
R⦿
3082.00
K
YZ Cet b
YZ Cet c
YZ Cet d
- Other Data
- Bibliography 12
- Exoplanet Archive Notes 3
- Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| YZ Cet | YZ Cet b | Radial Velocity | 2017 | Astudillo-Defru et al. 2017 | Confirmed Planet |
| YZ Cet | YZ Cet c | Radial Velocity | 2017 | Astudillo-Defru et al. 2017 | Confirmed Planet |
| YZ Cet | YZ Cet d | Radial Velocity | 2017 | Astudillo-Defru et al. 2017 | Confirmed Planet |
YZ Cet b
- Author notes ambiguity between 1 day aliases for the periods of planets b and c. (Robertson 2018)
- Author notes ambiguity between 1 day aliases for the periods of planets b and c. (Robertson 2018)
- Author notes ambiguity in Robertson (2018) is resolved with new parameters in ref. (Stock et al. 2020)
- RA
- 01h12m31.94s
- Dec
- -16d59m46.48s
- Distance
- 3.71207±0.00109 pc
- Parallax
- 269.3630000±0.0784959 mas
- Ecliptic Latitude
- -22.74184 deg
- Ecliptic Longitude
- 9.78875 deg
- Galactic Latitude
- -78.75503 deg
- Galactic Longitude
- 149.72351 deg
- Total Proper Motion
- 1363.5226800±0.1600966 mas/yr
- Proper Motion (RA)
- 1205.180000±0.169671 mas/yr
- Proper Motion (Dec)
- 637.758000±0.119817 mas/yr
- Photometry
-
mV---
-
mTESS12.2975000±0.0474324
-
mKs---
-
mIc---
-
mGaia10.429400±0.000576
-
mB---
| Source | Stock et al. 2020 | Robertson 2018 | Astudillo-Defru et al. 2017 | Turnbull 2015 | Nidever et al. 2002 | Hawley et al. 1996 |
|---|---|---|---|---|---|---|
|
Teff
(K)
|
3151±51 | --- | 3056±60 | 3082 | --- | --- |
|
M✶
(M⦿)
|
0.142±0.010 | 0.13±0.01 | 0.130±0.013 | 0.22 | --- | --- |
|
R✶
(R⦿)
|
0.157±0.005 | 0.169±0.001 | 0.168±0.009 | 0.18 | --- | --- |
|
Sp. T
|
M4.5 V | M4 V | M4.5 | M4.0V | --- | M4.5 |
|
Metallicity
(dex)
|
-0.18±0.16 [Fe/H] | --- | -0.26±0.08 [Fe/H] | --- | --- | --- |
|
γ
(km/s)
|
--- | --- | 28.30100±0.00030 | --- | 28.1 | --- |
|
Age
(Gyr)
|
3.8±0.5 | --- | 5.0±1.0 | --- | --- | --- |
|
Prot
(days)
|
68.28+0.21-0.28
|
--- | 83±15 | --- | --- | --- |
|
L✶
(log10(L⦿))
|
-2.659+0.008-0.008
|
--- | --- | --- | --- | --- |
|
v sin i
(km/s)
|
<2.0 | --- | --- | --- | --- | --- |
|
log g
(log10(cm/s2))
|
5.17±0.07 | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Stock et al. 2020 | Robertson 2018 | Astudillo-Defru et al. 2017 |
|---|---|---|---|
|
Mp sin i
(M⨁)
|
0.70+0.09-0.08
|
0.65±0.15 | 0.75±0.13 |
|
Mp sin i
(MJup)
|
0.0022+0.0003-0.0003
|
0.0020±0.0005 | 0.0024±0.0004 |
|
e
|
0.060+0.060-0.040
|
0.030+0.400-0.030
|
0.0±0.1 |
|
P
(days)
|
2.02087+0.00007-0.00009
|
1.9689±0.0004 | 1.96876±0.00021 |
|
K
(m/s)
|
1.31+0.15-0.14
|
1.3±0.3 | 1.48±0.25 |
|
a
(au)
|
0.01634+0.00035-0.00041
|
0.0156±0.0004 | 0.01557±0.00052 |
|
Tp
(days)
|
2452996.25+0.21-0.17
|
--- | --- |
|
Teq
(K)
|
471.2+2.2-2.1
|
--- | --- |
|
S
(S⨁)
|
8.21+0.16-0.15
|
--- | --- |
|
ω
(deg)
|
197+110-133
|
354±90 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Stock et al. 2020 | Robertson 2018 | Astudillo-Defru et al. 2017 |
|---|---|---|---|
|
Mp sin i
(M⨁)
|
1.14+0.11-0.10
|
0.58±0.11 | 0.980±0.140 |
|
Mp sin i
(MJup)
|
0.00359+0.00035-0.00031
|
0.0018±0.0003 | 0.00308±0.00044 |
|
e
|
0.0 |
0.050+0.350-0.050
|
0.040±0.110 |
|
P
(days)
|
3.05989±0.00010 | 0.75215±0.00001 | 3.06008±0.00022 |
|
K
(m/s)
|
1.84+0.14-0.15
|
1.6±0.3 | 1.68±0.23 |
|
a
(au)
|
0.02156+0.00046-0.00054
|
0.0082±0.0002 | 0.02090±0.00070 |
|
Tp
(days)
|
2452997.62+0.15-0.16
|
--- | --- |
|
Teq
(K)
|
410.3+2.0-1.9
|
--- | --- |
|
S
(S⨁)
|
4.72±0.09 | --- | --- |
|
ω
(deg)
|
--- | 30±80 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Stock et al. 2020 | Robertson 2018 | Astudillo-Defru et al. 2017 |
|---|---|---|---|
|
ω
(deg)
|
200+53-62
|
315±120 | --- |
|
Mp sin i
(M⨁)
|
1.09±0.12 | 1.21±0.20 | 1.14±0.17 |
|
Mp sin i
(MJup)
|
0.00343±0.00038 | 0.00381±0.00063 | 0.00359±0.00053 |
|
e
|
0.070+0.040-0.050
|
0.020+0.250-0.020
|
0.129±0.096 |
|
P
(days)
|
4.65626+0.00028-0.00029
|
4.6568±0.0004 | 4.65627±0.00042 |
|
K
(m/s)
|
1.54+0.14-0.15
|
1.8±0.3 | 1.72±0.23 |
|
a
(au)
|
0.02851+0.00061-0.00071
|
0.0276±0.0007 | 0.02764±0.00093 |
|
Tp
(days)
|
2452996.83+0.30-0.29
|
--- | --- |
|
Teq
(K)
|
356.7+1.7-1.6
|
--- | --- |
|
S
(S⨁)
|
2.70±0.05 | --- | --- |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 47 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 3 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 3 Associated Literature Data
-
The CARMENES search for exoplanets around M dwarfs. Characterization of the nearby ultra-compact multiplanetary system YZ Ceti
Stock et al. 2020 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Aliasing in the Radial Velocities of YZ Ceti: An Ultra-short Period for YZ Ceti c?
Robertson 2018 | Reference Overview -
The HARPS search for southern extra-solar planets. XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti
Astudillo-Defru et al. 2017 | Reference Overview -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 | Reference Overview -
Validation of the new Hipparcos reduction
van Leeuwen et al. 2007 | 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 -
Photometry of Stars with Large Proper Motion
Weis 1996 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
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