HD 18742 Overview
HD 18742
5.88
R⦿
5016.00
K
HD 18742 b
- Architecture
- HD 18742
- HD 18742
- Other Data
- Bibliography 15
- Nearby Data 4
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| HD 18742 | HD 18742 b | Radial Velocity | 2011 | Johnson et al. 2011 | Confirmed Planet |
- RA
- 03h00m10.63s
- Dec
- -20d48m09.73s
- Distance
- 162.6850±3.0755 pc
- Parallax
- 6.121120±0.115282 mas
- Ecliptic Latitude
- -36.08484 deg
- Ecliptic Longitude
- 35.18449 deg
- Galactic Latitude
- -60.00474 deg
- Galactic Longitude
- 207.80483 deg
- Total Proper Motion
- 30.1933542±0.1442156 mas/yr
- Proper Motion (RA)
- -19.7240000±0.0984525 mas/yr
- Proper Motion (Dec)
- -22.860500±0.170485 mas/yr
- Photometry
-
mV7.81±0.03
-
mTESS6.98636±0.00630
-
mJ6.177±0.027
-
mH5.705±0.042
-
mKs5.554±0.024
-
mW15.595±0.149
-
mW25.468±0.051
-
mW35.543±0.014
-
mW45.480±0.034
-
mGaia7.554640±0.000356
-
mB8.627±0.000
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.02±0.06 dex
-
[C/H] -0.30±0.09 dex
-
[O/H] -0.22±0.09 dex
-
[Na/H] -0.12±0.13 dex
-
[Mg/H] -0.08±0.04 dex
-
[Al/H] -0.14±0.08 dex
-
[Si/H] -0.14±0.12 dex
-
[Ca/H] -0.06±0.06 dex
-
[Y/H] 0.19±0.08 dex
-
[BaII/H] 0.02±0.15 dex
| Source | TICv8 | Luhn et al. 2019 | Gaia DR2 | Stassun et al. 2017 | Jofré et al. 2015 | Mortier et al. 2013 | Johnson et al. 2011 | Michigan Catalog, Vol. 4 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
4940.0±25.0 | 4940 |
5047.0000+48.7324-26.0000
|
5021±14 | 5021±14 | 5016±32 | 5048±44 | --- | --- |
|
Metallicity
(dex)
|
-0.050±0.100 [M/H] | --- | --- | -0.14 [Fe/H] | 0.14±0.02 [Fe/H] | -0.15±0.03 [Fe/H] | -0.04±0.03 [Fe/H] | --- | --- |
|
M✶
(M⦿)
|
--- | 1.36 | --- | 2.58±0.24 | 1.48±0.11 | 1.73±0.19 | 1.60±0.11 | --- | --- |
|
log g
(log10(cm/s2))
|
--- | 3.09 | --- | 3.31±0.02 | 3.31±0.02 | 3.15±0.08 | 3.30±0.06 | --- | --- |
|
R✶
(R⦿)
|
6.34373 | 5.13 |
5.9449725+0.0617285-0.1131650
|
5.88±0.23 | 4.08±0.56 | --- | 4.9±0.1 | --- | --- |
|
L✶
(log10(L⦿))
|
--- | --- |
1.3151277+0.0095740-0.0097898
|
--- | 1.12±0.15 | --- |
1.14+0.02-0.02
|
--- | --- |
|
γ
(km/s)
|
--- | --- | -13.489565307294729±0.244813896608318 | --- | --- | --- | --- | --- | --- |
|
v sin i
(km/s)
|
--- | --- | --- | --- | 1.72±0.23 | --- | 2.98±0.50 | --- | --- |
|
Age
(Gyr)
|
--- | --- | --- | --- | 2.49±0.58 | --- | 2.3±0.5 | --- | --- |
|
Sp. T
|
--- | --- | --- | --- | --- | --- | --- | G8/K0 IV | G0 |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Luhn et al. 2019 | Stassun et al. 2017 | Johnson et al. 2011 |
|---|---|---|---|
|
Mp sin i
(M⨁)
|
1081±381 | 1186±124 | 858.1±95.3 |
|
Mp sin i
(MJup)
|
3.4±1.2 | 3.73±0.39 | 2.7±0.3 |
|
e
|
0.040±0.035 | 0.12±0.06 | 0.120 |
|
P
(days)
|
766±25 | 772.00000±11.00000 | 772±11 |
|
K
(m/s)
|
61±22 | 44.3±3.8 | 44.3±3.8 |
|
a
(au)
|
1.82±0.14 | 1.98±0.07 | 1.92±0.05 |
|
Tp
(days)
|
2455280±140 | --- | 2455200±110 |
|
ω
(deg)
|
190±74 | --- | 107±50 |
Literature Stellar Spectra
(1 File)
| File Type | Spectrum Type | Wavelength Category | Reference |
|---|---|---|---|
| Spectra | echelle grating | Optical | California Planet Search |
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 116 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 1 SuperWASP Time Series
- 1 Associated Literature Data
-
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts
Luhn et al. 2019 | 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 -
Stellar parameters and chemical abundances of 223 evolved stars with and without planets
Jofré et al. 2015 | 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 -
Retired A Stars and Their Companions. VII. 18 New Jovian Planets
Johnson et al. 2011 | Reference Overview -
CPS
California Planet Search -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | 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 -
Michigan Catalog of two-dimensional spectral types for the HD stars, Vol 4
Michigan Catalog, Vol. 4 | 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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