GJ 357 Overview
GJ 357
0.34
R⦿
3505.00
K
GJ 357 b
0.107
RJup
GJ 357 c
GJ 357 d
- Other Data
- Bibliography 17
- Nearby Data 6
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| GJ 357 | GJ 357 b | Transit | 2019 | Luque et al. 2019 | Confirmed Planet |
| GJ 357 | GJ 357 c | Radial Velocity | 2019 | Luque et al. 2019 | Confirmed Planet |
| GJ 357 | GJ 357 d | Radial Velocity | 2019 | Luque et al. 2019 | Confirmed Planet |
- RA
- 09h36m01.79s
- Dec
- -21d39m54.23s
- Distance
- 9.44181±0.00511 pc
- Parallax
- 105.8830000±0.0568648 mas
- Ecliptic Latitude
- -33.77741 deg
- Ecliptic Longitude
- 154.77055 deg
- Galactic Latitude
- 22.08045 deg
- Galactic Longitude
- 253.88843 deg
- Total Proper Motion
- 999.9759509±0.0835821 mas/yr
- Proper Motion (RA)
- 138.694000±0.100166 mas/yr
- Proper Motion (Dec)
- -990.3110000±0.0832238 mas/yr
- Photometry
-
mV10.91±0.10
-
mTESS8.7409400±0.0074085
-
mJ7.337±0.034
-
mH6.740±0.033
-
mKs6.475±0.017
-
mIc---
-
mGaia9.88036±0.00144
-
mB12.355±0.153
-
mg---
-
mi---
-
mr---
-
Abundances
(Hypatia Catalog) -
[Fe/H] -0.16±0.08 dex
| Source | Oddo et al. 2023 | TICv8 | Luque et al. 2019 | Gaia DR2 | Turnbull 2015 | Gray et al. 2006 | Wright et al. 2004 | Nidever et al. 2002 | Hawley et al. 1996 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
3505±51 | 3490.0±157.0 | 3505±51 |
3805.5+155.1-168.5
|
3501 | --- | --- | --- | --- | 3505±90 | ||
|
Metallicity
(dex)
|
-0.12±0.16 [Fe/H] | --- | -0.12±0.16 [Fe/H] | --- | --- | --- | --- | --- | --- | --- | ||
|
M✶
(M⦿)
|
0.342±0.011 | 0.3459200±0.0201631 | 0.342±0.011 | --- | 0.34 | --- | --- | --- | --- | --- | ||
|
R✶
(R⦿)
|
0.337±0.015 | 0.3601440±0.0106422 | 0.337±0.015 | --- | 0.34 | --- | --- | --- | --- | 0.36±0.01 | ||
|
CAII LOG RHK
|
-5.37 | --- | --- | --- | --- | --- | --- | --- | --- | --- | ||
|
log g
(log10(cm/s2))
|
4.94±0.07 | 4.8640900±0.0003596 | 4.94±0.07 | --- | --- | --- | --- | --- | --- | 4.905730±0.061793 | ||
|
Sp. T
|
M2.5 V | --- | M2.5 V | --- | K | M2.5 V | --- | --- | M2.5 | --- | ||
|
Prot
(days)
|
77.8±2.1 | --- | --- | --- | --- | --- | --- | --- | --- | --- | ||
|
S Index
|
--- | --- | --- | --- | --- | --- | 0.425±0.055 | --- | --- | --- | ||
|
γ
(km/s)
|
--- | --- | --- | --- | --- | --- | --- | -34.6 | --- | --- | ||
|
L✶
(log10(L⦿))
|
--- |
-1.76105+0.09352-0.11935
|
-1.798+0.010-0.010
|
--- |
-1.699 +0.778-0.602
|
--- | --- | --- | --- | --- | ||
|
v sin i
(km/s)
|
--- | --- | <2.0 | --- | --- | --- | --- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
--- | 10.4402995±0.3164834 |
13.6+1.4-1.6
|
--- | --- | --- | --- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Oddo et al. 2023 | Kokori et al. 2023 | Luque et al. 2019 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|
|
a/R✶
|
22.890±1.211 |
19.4+1.4-1.3
|
22.31+0.76-0.90
|
--- | ||
|
Teq
(K)
|
518±44 | --- |
525+11-9
|
561 | ||
|
b
|
0.307±0.160 | --- |
0.34+0.10-0.14
|
--- | ||
|
S
(S⨁)
|
--- | --- |
12.6+1.1-0.8
|
16.4901 | ||
|
Mp
(M⨁)
|
--- | --- | 1.84±0.31 | --- | ||
|
Mp
(MJup)
|
--- | --- | 0.00579±0.00098 | --- | ||
|
i
(deg)
|
89.228±0.483 |
89.12+0.37-0.31
|
89.12+0.37-0.31
|
--- | ||
|
P
(days)
|
3.930600±0.000002 | 3.930623±0.000010 |
3.93072+0.00008-0.00006
|
3.9306027±0.0000030 | ||
|
ρ
(g/cm3)
|
--- | --- |
5.6+1.7-1.3
|
--- | ||
|
Rp
(R⨁)
|
1.20±0.06 | --- |
1.217+0.084-0.083
|
1.2699500±0.0506095 | ||
|
Rp
(RJup)
|
0.107±0.005 | --- |
0.1086+0.0075-0.0074
|
0.11329755±0.00451508 | ||
|
Rp/R✶
|
0.0309±0.0010 | 0.0331±0.0009 | 0.0331±0.0009 | --- | ||
|
K
(m/s)
|
--- | --- | 1.52±0.25 | --- | ||
|
a
(au)
|
0.0360±0.0004 | --- | 0.035±0.002 | --- | ||
|
T14
(hours)
|
1.291±0.123 | --- |
1.53+0.12-0.11
|
1.196±0.275 | ||
|
TC
(days)
|
2459272.6757±0.0004 | 2458824.58800±0.00091 |
2458517.99862+0.00039-0.00038
|
2460011.6290180±0.0008558 | ||
|
δ
(%)
|
0.09550±0.00620 | --- | --- | 0.10480000±0.00549547 |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Luque et al. 2019 |
|---|---|
|
Teq
(K)
|
401.2+10.8-10.7
|
|
S
(S⨁)
|
4.45±0.14 |
|
Mp sin i
(M⨁)
|
3.40±0.46 |
|
Mp sin i
(MJup)
|
0.0107±0.0014 |
|
P
(days)
|
9.1247+0.0011-0.0010
|
|
K
(m/s)
|
2.13±0.28 |
|
a
(au)
|
0.061±0.004 |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity
- Tools
| Source | Luque et al. 2019 |
|---|---|
|
Teq
(K)
|
219.6±5.9 |
|
S
(S⨁)
|
0.38±0.01 |
|
Mp sin i
(M⨁)
|
6.1±1.0 |
|
Mp sin i
(MJup)
|
0.019±0.003 |
|
P
(days)
|
55.661±0.055 |
|
K
(m/s)
|
2.09+0.34-0.35
|
|
a
(au)
|
0.204±0.015 |
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 | 144 | Hp (Hipparcos) | Hipparcos and Tycho Catalogs |
- Known Objects
- 3 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 4 KELT Time Series
- 1 SuperWASP Time Series
- 3 Associated Literature Data
-
Characterization of a Set of Small Planets with TESS and CHEOPS and an Analysis of Photometric Performance
Oddo et al. 2023 | Reference Overview -
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization
Luque et al. 2019 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI -
ExoCat-1: The Nearby Stellar Systems Catalog for Exoplanet Imaging Missions
Turnbull 2015 | Reference Overview -
CPS
California Planet Search -
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 -
Chromospheric Ca II Emission in Nearby F, G, K, and M Stars
Wright et al. 2004 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
Radial Velocities of 889 late-type stars
Nidever et al. 2002 | Reference Overview -
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalog
Bakos et al. 2002 | 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 -
The Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
Hawley et al. 1996 | Reference Overview -
UBV(RI)_c photometry of faint nearby stars
Laing 1989 | Reference Overview
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
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