HD 21693 Overview
HD 21693
0.91
R⦿
5430.00
K
HD 21693 b
HD 21693 c
- Architecture
- HD 21693
- HD 21693
- Other Data
- Bibliography 13
- Nearby Data 3
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| HD 21693 | HD 21693 b | Radial Velocity | 2019 | Udry et al. 2019 | Confirmed Planet |
| HD 21693 | HD 21693 c | Radial Velocity | 2019 | Udry et al. 2019 | Confirmed Planet |
- RA
- 03h27m12.97s
- Dec
- -58d19m23.78s
- Distance
-
33.2550+0.0349-0.0348pc
- Parallax
- 30.0417000±0.0313032 mas
- Ecliptic Latitude
- -70.90213 deg
- Ecliptic Longitude
- 7.0442 deg
- Galactic Latitude
- -48.72408 deg
- Galactic Longitude
- 272.90839 deg
- Total Proper Motion
- 266.0584400±0.0555393 mas/yr
- Proper Motion (RA)
- 248.6540000±0.0557001 mas/yr
- Proper Motion (Dec)
- 94.6482000±0.0544169 mas/yr
- Photometry
-
mV7.95±0.03
-
mTESS7.2742±0.0060
-
mJ6.607±0.019
-
mH6.288±0.024
-
mKs6.193±0.017
-
mW16.147±0.108
-
mW26.059±0.036
-
mW36.186±0.014
-
mW46.154±0.041
-
mGaia7.757010±0.000194
-
mB8.715±0.023
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.02±0.05 dex
-
[C/H] 0.12±0.04 dex
-
[O/H] 0.07±0.19 dex
-
[Na/H] 0.07±0.04 dex
-
[Mg/H] 0.07±0.07 dex
-
[Al/H] 0.10±0.02 dex
-
[Si/H] 0.05±0.03 dex
-
[Ca/H] 0.06±0.06 dex
-
[Y/H] 0.23±0.08 dex
-
[BaII/H] 0.08±0.05 dex
| Source | TICv8 | Udry et al. 2019 | Gaia DR2 | Sousa et al. 2008 | Gray et al. 2006 | Nordstrom et al. 2004 | Michigan Catalog, Vol. 1 | Cannon & Pickering 1918 |
|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
5434.330+144.673-128.548
|
5430±26 |
5458.3335+69.6165-23.3335
|
5430±26 | --- | --- | --- | --- |
|
L✶
(log10(L⦿))
|
-0.1742901+0.0096085-0.0108819
|
-0.21+0.01-0.01
|
-0.17481369+0.00071863-0.00071979
|
-0.209+0.014-0.014
|
--- | --- | --- | --- |
|
Metallicity
(dex)
|
0.0000±0.0089 [M/H] | 0±0 [Fe/H] | --- | 0.00±0.02 [Fe/H] | --- | --- | --- | --- |
|
M✶
(M⦿)
|
0.95000000+0.14678200-0.09520660
|
0.80 | --- | 0.853 | --- | --- | --- | --- |
|
log g
(log10(cm/s2))
|
4.4853600+0.1059540-0.0630171
|
4.37±0.04 | --- | 4.37±0.04 | --- | --- | --- | --- |
|
γ
(km/s)
|
--- | --- | 39.519235835027303±0.148674683882213 | --- | --- | 39.1±0.1 | --- | --- |
|
R✶
(R⦿)
|
0.9230290+0.0507975-0.0555945
|
--- |
0.91437780+0.00786806-0.02288560
|
--- | --- | --- | --- | --- |
|
v sin i
(km/s)
|
--- | 1.6 | --- | --- | --- | 2 | --- | --- |
|
Sp. T
|
--- | G8 V | --- | --- | G9 IV-V | --- | G8 V | G5 |
|
Prot
(days)
|
--- | 35.2±4.0 | --- | --- | --- | --- | --- | --- |
|
ρ✶
(g/cm3)
|
1.7031125+0.4875264-0.3343121
|
--- | --- | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Udry et al. 2019 |
|---|---|
|
Tp
(days)
|
2455492.0549+3.0968-3.1310
|
|
ω
(deg)
|
-91.040+50.570-50.350
|
|
Mp sin i
(M⨁)
|
8.23+1.08-1.05
|
|
Mp sin i
(MJup)
|
0.0259+0.0034-0.0033
|
|
e
|
0.12+0.09-0.08
|
|
P
(days)
|
22.6786+0.0085-0.0087
|
|
K
(m/s)
|
2.20±0.22 |
|
a
(au)
|
0.1455+0.0058-0.0063
|
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Udry et al. 2019 |
|---|---|
|
Tp
(days)
|
2455528.4064+7.0762-8.1820
|
|
ω
(deg)
|
-17.34+47.50-55.35
|
|
Mp sin i
(M⨁)
|
17.37+1.77-1.79
|
|
Mp sin i
(MJup)
|
0.0547±0.0056 |
|
e
|
0.070+0.060-0.050
|
|
P
(days)
|
53.7357+0.0312-0.0309
|
|
K
(m/s)
|
3.44±0.20 |
|
a
(au)
|
0.2586+0.0103-0.0113
|
Literature Time Series
(1 File Type, 1 File)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 162 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 2 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 2 Associated Literature Data
-
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
The HARPS search for southern extra-solar planets. XLIV. Eight HARPS multi-planet systems hosting 20 super-Earth and Neptune-mass companions
Udry et al. 2019 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
Sousa et al. 2008 | Reference Overview -
Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 parsecs: The Southern Sample
Gray et al. 2006 | 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 -
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 1
Michigan Catalog, Vol. 1 | 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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