HD 181720 Overview
HD 181720
1.50
R⦿
5736.00
K
HD 181720 b
- Architecture
- HD 181720
- HD 181720
- Other Data
- Bibliography 15
- Nearby Data 4
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| HD 181720 | HD 181720 b | Radial Velocity | 2009 | Santos et al. 2010 | Confirmed Planet |
- RA
- 19h22m53.09s
- Dec
- -32d55m15.02s
- Distance
-
60.2046+0.2433-0.2414pc
- Parallax
- 16.5816000±0.0663627 mas
- Ecliptic Latitude
- -10.73865 deg
- Ecliptic Longitude
- 287.59577 deg
- Galactic Latitude
- -20.48764 deg
- Galactic Longitude
- 5.51512 deg
- Total Proper Motion
- 424.2967590±0.0828803 mas/yr
- Proper Motion (RA)
- 88.1544000±0.0976982 mas/yr
- Proper Motion (Dec)
- -415.0380000±0.0821488 mas/yr
- Photometry
-
mV7.84±0.03
-
mTESS7.2562±0.0061
-
mJ6.652±0.019
-
mH6.346±0.029
-
mKs6.294±0.034
-
mW16.268±0.088
-
mW26.211±0.026
-
mW36.291±0.016
-
mW46.201±0.049
-
mGaia7.674840±0.000427
-
mB8.391±0.015
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.52±0.03 dex
-
[C/H] -0.35±0.06 dex
-
[O/H] -0.09±0.06 dex
-
[Na/H] -0.47±0.10 dex
-
[Mg/H] -0.22±0.02 dex
-
[Al/H] -0.35±0.02 dex
-
[Si/H] -0.33±0.03 dex
-
[Ca/H] -0.34±0.04 dex
-
[Y/H] -0.57±0.02 dex
-
[BaII/H] -0.55±0.07 dex
| Source | TICv8 | Gaia DR2 |
Stassun et al. 2017 |
Santos et al. 2010 |
Wright et al. 2004 | Nordstrom et al. 2004 | Henry et al. 1996 | Michigan Catalog, Vol. 3 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|---|
|
S Index
|
--- | --- | --- | --- | 0.147±0.019 | --- | 0.155 | --- | --- |
|
CAII LOG RHK
|
--- | --- | --- | --- | -5.07 | --- | -5.00 | --- | --- |
|
Teff
(K)
|
5784.590+112.699-150.187
|
5864.0000+46.6665-46.0000
|
5736±37 | 5781±18 | --- | --- | --- | --- | --- |
|
Metallicity
(dex)
|
-0.5288660±0.0095238 [M/H] | --- | -0.62 [Fe/H] | -0.53±0.02 [Fe/H] | --- | --- | --- | --- | --- |
|
M✶
(M⦿)
|
1.040000+0.131899-0.123463
|
--- | 1.03±0.20 | 0.92 | --- | --- | --- | --- | --- |
|
R✶
(R⦿)
|
1.5085800+0.0883804-0.0647452
|
1.4673702+0.0232952-0.0230792
|
1.50±0.07 | 1.39 | --- | --- | --- | --- | --- |
|
log g
(log10(cm/s2))
|
4.0979600+0.0827275-0.0720209
|
--- | 4.09±0.08 | 4.24±0.15 | --- | --- | --- | --- | --- |
|
L✶
(log10(L⦿))
|
0.36092346+0.00898848-0.01405394
|
0.36054993+0.00223837-0.00224997
|
--- | 0.288 | --- | --- | --- | --- | --- |
|
γ
(km/s)
|
--- | -44.846004108065621±0.252547271392043 | --- | -45.3352±0.0004 | --- | -45.2±0.2 | --- | --- | --- |
|
v sin i
(km/s)
|
--- | --- | --- | 1.5 | --- | 2 | --- | --- | --- |
|
Sp. T
|
--- | --- | --- | G1 V | --- | --- | --- | G1 V | G0 |
|
ρ✶
(g/cm3)
|
0.4270632+0.1137444-0.0738000
|
--- | --- | --- | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source |
Stassun et al. 2017 |
Santos et al. 2010 |
|---|---|---|
|
Tp
(days)
|
--- | 2453631±30 |
|
ω
(deg)
|
--- | 177±12 |
|
Mp sin i
(M⨁)
|
127±19 | 117.59 |
|
Mp sin i
(MJup)
|
0.40±0.06 | 0.37 |
|
e
|
0.26±0.06 | 0.26±0.06 |
|
P
(days)
|
956.00000±14.00000 | 956±14 |
|
K
(m/s)
|
8.4±0.4 | 8.4±0.4 |
|
a
(au)
|
1.85±0.04 | 1.78 |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 59 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 1 Confirmed Planets
- 4 2MASS Point Source Catalog
- Data Files
- 7 SuperWASP 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 -
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
The HARPS search for southern extra-solar planets. XXI. Three new giant planets orbiting the metal-poor stars HD 5388, HD 181720, and HD 190984
Santos et al. 2010 | Reference Overview -
Chromospheric Ca II Emission in Nearby F, G, K, and M Stars
Wright et al. 2004 | Reference Overview -
The Geneva-Copenhagen survey of the Solar neighbourhood. Ages,metallicities and kinematix properties of ~14 000 F and G dwarfs
Nordstrom et al. 2004 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
van Altena et al. 2001 | Reference Overview -
The Hipparcos and Tycho Photometric System Passbands
Tycho 2 converted using Bessell 2000 | Reference Overview -
The Tycho-2 catalog of the 2.5 million brightest stars
The Tycho-2 Catalog | Reference Overview -
The Hipparcos and Tycho Catalogs
Hipparcos and Tycho Catalogs | Reference Overview -
A Survey of Ca II H and K Chromospheric Emission in Southern Solar-Type Stars
Henry et al. 1996 | Reference Overview -
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 3
Michigan Catalog, Vol. 3 | 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
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