G 9-40 Overview
G 9-40
0.31
R⦿
3708.00
K
G 9-40 b
0.170
RJup
- Other Data
- Bibliography 10
- Exoplanet Archive Notes 1
- Nearby Data 7
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| G 9-40 | G 9-40 b | Transit | 2019 | Stefansson et al. 2020 | Confirmed Planet |
G 9-40 b
- Planet mass is a 3-sigma upper limit. (Stefansson et al. 2020)
- RA
- 08h58m52.52s
- Dec
- +21d04m29.27s
- Distance
-
27.9276+0.0451-0.0450pc
- Parallax
- 35.7781000±0.0572949 mas
- Ecliptic Latitude
- 3.79417 deg
- Ecliptic Longitude
- 131.14413 deg
- Galactic Latitude
- 37.03563 deg
- Galactic Longitude
- 206.06509 deg
- Total Proper Motion
- 363.6302602±0.0771468 mas/yr
- Proper Motion (RA)
- 175.512000±0.102957 mas/yr
- Proper Motion (Dec)
- -318.4690000±0.0673777 mas/yr
- Photometry
-
mV13.821±0.044
-
mTESS11.5219000±0.0073949
-
mJ10.058±0.022
-
mH9.433±0.023
-
mKs9.190±0.018
-
mKep12.771
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mGaia12.73310±0.00044
-
mB15.477±0.079
-
mg16.0466000±0.0070923
-
mi12.1350000±0.0012724
-
mr13.3720000±0.0014019
-
mu17.2800000±0.0126585
-
mz13.8174000±0.0150014
-
Mission
- K2 : Observed in Campaign 16
| Source | Luque et al. 2022 | Stefansson et al. 2020 | TICv8 | Gaia DR2 | Yu et al. 2018 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
3395±51 | 3348±32 | 3413.0±157.0 |
3708.0+197.1-216.6
|
3390±20 | 3413±157 | ||
|
L✶
(log10(L⦿))
|
-1.960+0.007-0.008
|
-1.971+0.011-0.012
|
-1.91498+0.09507-0.12189
|
--- | --- | --- | ||
|
Metallicity
(dex)
|
-0.070±0.160 [Fe/H] |
0.040+0.100-0.110
[Fe/H]
|
--- | --- | --- | --- | ||
|
γ
(km/s)
|
--- | 14.65±0.26 | --- | --- | --- | --- | ||
|
v sin i
(km/s)
|
--- | <2 | --- | --- | --- | --- | ||
|
Age
(Gyr)
|
--- |
9.90+2.60-4.10
|
--- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
1.62±0.11 |
14.11+0.99-0.92
|
13.2210832±0.2713916 | --- | --- | --- | ||
|
M✶
(M⦿)
|
0.2952±0.0136 | 0.290±0.020 | 0.2942830±0.0201546 | --- | --- | --- | ||
|
R✶
(R⦿)
|
0.3026±0.0095 |
0.3073+0.0059-0.0061
|
0.3154190±0.0093695 | --- | 0.307±0.003 | 0.32±0.01 | ||
|
log g
(log10(cm/s2))
|
4.84±0.04 | 4.926±0.027 | 4.9090600±0.0039812 | --- | 4.943±0.010 | 4.91 | ||
|
Sp. T
|
--- | M2.5 V | --- | --- | --- | --- | ||
|
Prot
(days)
|
30±1 |
29.85+1.01-0.94
|
--- | --- | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Luque et al. 2022 | Kokori et al. 2023 | Stefansson et al. 2020 | Yu et al. 2018 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|
|
a/R✶
|
30.46+0.67-0.75
|
27.0+5.4-3.7
|
27.0+5.4-3.7
|
--- | --- | ||
|
i
(deg)
|
89.03±0.10 |
88.57+0.63-0.47
|
88.57+0.63-0.47
|
--- | --- | ||
|
P
(days)
|
5.7459982±0.0000020 | 5.7459996±0.0000020 | 5.746007±0.000006 | 5.745912 | 5.7459945±0.0000061 | ||
|
Rp/R✶
|
0.05750±0.00075 | 0.0605±0.0026 |
0.0605+0.0026-0.0028
|
--- | --- | ||
|
TC
(days)
|
2459503.32682±0.00042 | 2458319.65105±0.00013 |
2458497.77747+0.00032-0.00033
|
2458095.55671 | 2460261.80335700±0.00240453 | ||
|
Teq
(K)
|
440.6±7.6 | --- |
456.0+35.0-40.0
|
--- | 393 | ||
|
b
|
0.513±0.042 | --- |
0.672+0.100-0.220
|
--- | --- | ||
|
S
(S⨁)
|
6.27±0.19 | --- |
7.2+2.5-2.2
|
--- | 3.99828 | ||
|
ω
(deg)
|
90.0 | --- | 0 | --- | --- | ||
|
Mp
(M⨁)
|
4.00±0.63 | --- | <11.7 | --- | --- | ||
|
Mp
(MJup)
|
0.0126±0.0020 | --- | <0.0368 | --- | --- | ||
|
e
|
0 | --- | 0 | --- | --- | ||
|
ρ
(g/cm3)
|
3.20+0.63-0.58
|
--- | --- | --- | --- | ||
|
Rp
(R⨁)
|
1.900±0.065 | --- |
2.025+0.096-0.097
|
--- | 2.0608100±0.0618536 | ||
|
Rp
(RJup)
|
0.1695±0.0058 | --- |
0.1807+0.0086-0.0087
|
--- | 0.18385347±0.00551822 | ||
|
K
(m/s)
|
3.22±0.49 | --- | --- | --- | --- | ||
|
a
(au)
|
0.04180±0.00064 | --- |
0.0385+0.0078-0.0053
|
--- | --- | ||
|
T14
(hours)
|
1.693+0.070-0.061
|
--- |
1.34+0.05-0.04
|
1.13280 | 1.185±0.127 | ||
|
δ
(%)
|
--- | --- |
0.365+0.032-0.033
|
0.3155 | 0.36500000000±0.00000651263 |
- Known Objects
- 1 Confirmed Planets
- 1 K2 Targets
- 2 2MASS Point Source Catalog
- Data Files
- 1 SuperWASP Time Series
- 1 KELT Praesepe Time Series
- 1 K2 Time Series
- 1 Associated Literature Data
-
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
Precise mass determination for the keystone sub-Neptune planet transiting the mid-type M dwarf G 9-40
Luque et al. 2022 | Reference Overview -
A Sub-Neptune-sized Planet Transiting the M2.5 Dwarf G 9-40: Validation with the Habitable-zone Planet Finder
Stefansson et al. 2020 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
Planetary Candidates from K2 Campaign 16
Yu et al. 2018 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI -
The K2 Ecliptic Plane Input Catalog (EPIC) and Stellar Classifications of 138,600 Targets in Campaigns 1-8
EPIC Catalog | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | 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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