81 Cet Overview
81 Cet
11.00
R⦿
4785.00
K
81 Cet b
- Other Data
- Bibliography 13
- Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| 81 Cet | 81 Cet b | Radial Velocity | 2008 | Sato et al. 2008 | Confirmed Planet |
- RA
- 02h37m41.85s
- Dec
- -03d23m46.90s
- Distance
- 101.260±1.222 pc
- Parallax
- 9.848950±0.118279 mas
- Ecliptic Latitude
- -17.84979 deg
- Ecliptic Longitude
- 35.89019 deg
- Galactic Latitude
- -55.24995 deg
- Galactic Longitude
- 174.48697 deg
- Total Proper Motion
- 60.3912853±0.1937107 mas/yr
- Proper Motion (RA)
- 42.065700±0.190188 mas/yr
- Proper Motion (Dec)
- -43.331100±0.196973 mas/yr
- Photometry
-
mV5.64307±0.02300
-
mTESS4.77853±0.00740
-
mJ3.940±0.266
-
mH3.386±0.234
-
mKs3.266±0.258
-
mW13.313±0.507
-
mW23.036±0.275
-
mW33.297±0.012
-
mW43.242±0.022
-
mGaia5.3758800±0.0031065
-
mB6.675±0.019
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.01±0.13 dex
-
[C/H] -0.17±0.08 dex
-
[O/H] -0.05±0.10 dex
-
[Na/H] 0.14±0.12 dex
-
[Mg/H] 0.14±0.10 dex
-
[Al/H] 0.09±0.05 dex
-
[Si/H] 0.14±0.08 dex
-
[Ca/H] 0.10±0.06 dex
-
[Y/H] 0.06±0.08 dex
-
[BaII/H] 0.10±0.08 dex
| Source | Teng et al. 2023 | TICv8 | Gaia DR2 | Mortier et al. 2013 | Kunitomo et al. 2011 | Sato et al. 2008 | Michigan Catalog, Vol. 5 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|
|
Sp. T
|
G5 III | --- | --- | --- | --- | G5 III | K0 III | K0 |
|
Teff
(K)
|
4734 | 4844.29000±6.49938 |
4829.750+191.750-78.763
|
4845±51 | --- | 4785±25 | --- | --- |
|
L✶
(log10(L⦿))
|
1.760+0.059-0.041
|
--- |
1.8064927+0.0061761-0.0062652
|
--- | --- | 1.778 | --- | --- |
|
Metallicity
(dex)
|
-0.11+0.10-0.06
[Fe/H]
|
0.00440220±0.02034550 [M/H] | --- | -0.070±0.040 [Fe/H] | --- | -0.06±0.03 [Fe/H] | --- | --- |
|
v sin i
(km/s)
|
--- | --- | --- | --- | --- | 1.80 | --- | --- |
|
M✶
(M⦿)
|
1.23+0.30-0.25
|
--- | --- | 1.74±0.21 |
1.6 +0.4-0.2
|
2.4 +0.1-0.4
|
--- | --- |
|
R✶
(R⦿)
|
11.21+0.81-0.35
|
11.2884 |
11.430091+0.382124-0.856268
|
--- | --- |
11 +2-1
|
--- | --- |
|
log g
(log10(cm/s2))
|
2.41+0.07-0.06
|
--- | --- | 2.45±0.19 | --- | 2.35±0.08 | --- | --- |
|
γ
(km/s)
|
--- | --- | 9.2544725266681702±0.1273811769393992 | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Teng et al. 2023 | Kunitomo et al. 2011 | Sato et al. 2008 |
|---|---|---|---|
|
Tp
(days)
|
2453458.4+106.0-180.6
|
--- | 2452486±26 |
|
ω
(deg)
|
-166.7+54.4-36.0
|
--- | 175.0±6.9 |
|
Mp sin i
(M⨁)
|
1051+25-21
|
1274.4 +190.7-95.3
|
1684.4 |
|
Mp sin i
(MJup)
|
3.307+0.078-0.067
|
4.01 +0.6-0.3
|
5.3 |
|
e
|
0.037+0.015-0.025
|
--- | 0.206±0.029 |
|
P
(days)
|
1005.57+1.84-1.94
|
--- | 952.7±8.8 |
|
K
(m/s)
|
58.51+1.39-1.20
|
--- | 62.8±1.5 |
|
a
(au)
|
2.104±0.003 |
2.17 +0.17-0.09
|
2.5 |
Literature Time Series
(2 File Types, 2 Files)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 59 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
| Radial Velocity Curve | 33 | Optical Spectra | Sato et al. 2008 |
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
-
Revisiting Planetary Systems in Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and multiplicity-metallicity trend around evolved stars
Teng et al. 2023 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
New and updated stellar parameters for 71 evolved planet hosts. On the metallicity-giant planet connection
Mortier et al. 2013 | Reference Overview -
Planet Engulfment by ~1.5-3 M sun Red Giants
Kunitomo et al. 2011 | Reference Overview -
Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD 167042
Sato et al. 2008 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 5
Michigan Catalog, Vol. 5 | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
UBVRIJKL Photometry of Bright Stars
Johnson et al. 1966 | Reference Overview -
The Henry Draper catalogue 0h, 1h, 2h, and 3h
Cannon & Pickering 1918 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
- External Link
- Search
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