YZ Cet Overview

YZ Cet 0.18 R⦿ 3082.00 K
YZ Cet b
YZ Cet c
YZ Cet d
Architecture
YZ Cet
YZ Cet
YZ Cet b
YZ Cet c
YZ Cet d
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)
YZ Cet c
  • 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
---
mTESS
12.2975000±0.0474324
mKs
---
mIc
---
mGaia
10.429400±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
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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