K2-261 Overview
K2-261
1.66
R⦿
5490.00
K
K2-261 b
0.827
RJup
- Other Data
- Bibliography 13
- Nearby Data 5
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| K2-261 | K2-261 b | Transit | 2018 | Johnson et al. 2018 | Confirmed Planet |
- RA
- 10h52m07.75s
- Dec
- +00d29m35.40s
- Distance
-
213.283+1.975-1.941pc
- Parallax
- 4.6601800±0.0427204 mas
- Ecliptic Latitude
- -6.21057 deg
- Ecliptic Longitude
- 164.16722 deg
- Galactic Latitude
- 50.89463 deg
- Galactic Longitude
- 250.88317 deg
- Total Proper Motion
- 50.1099578±0.0693727 mas/yr
- Proper Motion (RA)
- -23.6636000±0.0752049 mas/yr
- Proper Motion (Dec)
- -44.1706000±0.0676059 mas/yr
- Photometry
-
mV10.612±0.009
-
mTESS9.9623±0.0065
-
mJ9.337±0.030
-
mH8.920±0.042
-
mKs8.890±0.022
-
mKep10.451
-
mW18.828±0.023
-
mW28.897±0.020
-
mW38.819±0.031
-
mW48.281
-
mGaia10.459400±0.000314
-
mB11.559±0.112
-
Mission
- K2 : Observed in Campaign 14
| Source | Knudstrup et al. 2024 | Thygesen et al. 2023 | Ikwut-Ukwa et al. 2020 | Ikwut-Ukwa et al. 2020 | TICv8 | Johnson et al. 2018 | Gaia DR2 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
5537±71 | 5490±110 |
5445+77-76
|
5503+73-74
|
5466.000+134.701-116.472
|
5537±71 |
5287.6865+154.3140-106.7530
|
5287.7±128.3 | ||
|
L✶
(log10(L⦿))
|
--- |
0.3539+0.0164-0.0163
|
0.328+0.039-0.041
|
0.346+0.039-0.039
|
0.38395801+0.01142014-0.01421266
|
--- |
0.37215707+0.00567384-0.00574893
|
--- | ||
|
Metallicity
(dex)
|
0.36±0.06 [Fe/H] |
0.372+0.069-0.072
[Fe/H]
|
0.360±0.059 [Fe/H] |
0.384+0.057-0.058
[Fe/H]
|
--- | 0.36±0.06 [Fe/H] | --- | --- | ||
|
Age
(Gyr)
|
8.8+0.4-0.3
|
8.80+1.70-1.20
|
9.30+2.00-1.60
|
4.83+0.68-0.71
|
--- |
8.8+0.4-0.3
|
--- | --- | ||
|
ρ✶
(g/cm3)
|
--- |
0.339+0.046-0.042
|
0.346+0.038-0.032
|
0.405+0.038-0.035
|
0.2591557+0.0547297-0.0616634
|
0.350±0.030 | --- | --- | ||
|
M✶
(M⦿)
|
1.105±0.019 |
1.107+0.042-0.047
|
1.090+0.050-0.051
|
1.266+0.043-0.041
|
0.96000000+0.13879500-0.09960750
|
1.10+0.01-0.02
|
--- | --- | ||
|
R✶
(R⦿)
|
1.669±0.022 |
1.663+0.071-0.068
|
1.642+0.058-0.059
|
1.641+0.058-0.055
|
1.7349700+0.1086770-0.0747598
|
1.65±0.04 |
1.8289413+0.0761471-0.1022520
|
1.73±0.09 | ||
|
log g
(log10(cm/s2))
|
4.21±0.11 |
4.040+0.038-0.041
|
4.044+0.031-0.030
|
4.111±0.025 |
3.9417500+0.0710911-0.0901541
|
4.21±0.11 | --- | 3.88±0.45 | ||
|
v sin i
(km/s)
|
1.3±0.4 | --- | --- | --- | --- | 2.8±0.5 | --- | --- | ||
|
Sp. T
|
--- | --- | --- | --- | --- | G7 IV/V | --- | --- | ||
|
γ
(km/s)
|
--- | --- | --- | --- | --- | --- | 3.281495369824116±0.516029943493362 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Thygesen et al. 2023 | Knudstrup et al. 2024 | Kokori et al. 2023 | Patel & Espinoza 2022 | Ivshina & Winn 2022 | Ikwut-Ukwa et al. 2020 | Ikwut-Ukwa et al. 2020 | Johnson et al. 2018 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
a/R✶
|
14.51+0.51-0.47
|
13.38+0.16-0.18
|
13.3+2.4-2.6
|
12.96+0.68-1.30
|
--- |
14.26+0.43-0.42
|
13.53+0.48-0.44
|
13.3+2.4-2.6
|
--- | ||
|
Tp
(days)
|
--- | --- | --- | --- | --- | --- | --- |
2457907.58+0.59-0.40
|
--- | ||
|
Teq
(K)
|
1036±10 | --- | --- | --- | --- | 1030±21 |
1046+21-22
|
1080+110-100
|
935 | ||
|
b
|
0.29+0.14-0.18
|
0.187 | --- |
0.340+0.200-0.210
|
--- |
0.33+0.16-0.21
|
0.35+0.15-0.21
|
0.27±0.18 | --- | ||
|
ω
(deg)
|
145+13-15
|
--- | 143.0±18.0 | --- | --- | 137±17 |
131+16-17
|
143.0±18.0 | --- | ||
|
Mp
(M⨁)
|
69.0+7.9-9.2
|
70±10 | --- | --- | --- |
67.7+8.3-8.9
|
59.8±7.9 | 70.9±9.9 | --- | ||
|
Mp
(MJup)
|
0.217+0.025-0.029
|
0.22±0.03 | --- | --- | --- |
0.213+0.026-0.028
|
0.188±0.025 | 0.223±0.031 | --- | ||
|
Mp sin i
(M⨁)
|
--- | --- | --- | --- | --- | --- | --- | 70.9±9.9 | --- | ||
|
Mp sin i
(MJup)
|
--- | --- | --- | --- | --- | --- | --- | 0.223±0.031 | --- | ||
|
e
|
0.274+0.065-0.061
|
0.42±0.03 | 0.39±0.15 | --- | --- |
0.248+0.065-0.063
|
0.286+0.064-0.069
|
0.39±0.15 | --- | ||
|
i
(deg)
|
88.58+0.85-0.57
|
--- |
88.4+1.1-1.9
|
--- | --- |
88.34+1.00-0.62
|
88.07+1.10-0.65
|
88.4+1.1-1.9
|
--- | ||
|
P
(days)
|
11.6334681±0.0000044 | 11.63344±0.00012 | 11.6334758±0.0000080 | 11.6334500±0.0001100 | 11.633482±0.000017 | 11.633478±0.000017 | 11.633478±0.000017 | 11.63344±0.00012 | 11.6332127±0.0002106 | ||
|
ρ
(g/cm3)
|
0.473+0.082-0.079
|
--- | --- | --- | --- |
0.430+0.074-0.068
|
0.380+0.071-0.063
|
0.483+0.076-0.081
|
--- | ||
|
Rp
(R⨁)
|
9.27+0.37-0.34
|
9.5+0.3-0.2
|
--- | --- | --- |
9.51+0.39-0.36
|
9.53+0.39-0.38
|
9.53+0.29-0.25
|
10.264000±0.549285 | ||
|
Rp
(RJup)
|
0.827+0.033-0.030
|
0.85+0.03-0.02
|
--- | --- | --- |
0.848+0.035-0.032
|
0.850+0.035-0.034
|
0.850+0.026-0.022
|
0.91569432±0.04900401 | ||
|
Rp/R✶
|
0.05274+0.00076-0.00049
|
0.05178+0.00060-0.00050
|
0.0529±0.0010 |
0.0543+0.0015-0.0012
|
--- |
0.05295+0.00110-0.00068
|
0.05304+0.00110-0.00074
|
0.05293+0.00096-0.00051
|
--- | ||
|
K
(m/s)
|
17.4+1.9-2.3
|
--- | --- | --- | --- |
16.9+2.1-2.2
|
16.7±2.2 | 18.8±2.6 | --- | ||
|
a
(au)
|
0.1086±0.0012 | --- | --- | --- | --- | 0.1087±0.0012 |
0.1034+0.0015-0.0016
|
0.102+0.019-0.020
|
--- | ||
|
δ
(%)
|
0.2781+0.0081-0.0052
|
--- | --- | --- | --- |
0.2804+0.0120-0.0072
|
0.2814+0.0120-0.0078
|
0.2801+0.0102-0.0054
|
0.3480000000±0.0000200411 | ||
|
T14
(hours)
|
5.1288+0.0336-0.0264
|
--- | --- | --- | --- |
5.138+0.046-0.034
|
5.138+0.048-0.034
|
5.11+1.37-0.70
|
5.081±0.188 | ||
|
TC
(days)
|
2458151.14392+0.00024-0.00027
|
--- | 2458325.64553±0.00040 |
2458546.68220+0.00098-0.00110
|
2458558.31512±0.00078 |
2457976.64189+0.00027-0.00031
|
2457976.64192+0.00028-0.00033
|
2457906.84084+0.00054-0.00067
|
2460268.4023630±0.0378686 | ||
|
S
(S⨁)
|
--- | --- | --- | --- | --- |
180+10-13
|
180+15-10
|
--- | 126.951 | ||
|
λ
(deg)
|
--- |
32+48-33
|
--- | --- | --- | --- | --- | --- | --- |
- Known Objects
- 1 Confirmed Planets
- 1 K2 Targets
- 2 2MASS Point Source Catalog
- Data Files
- 1 K2 Time Series
- 1 Associated Literature Data
-
Obliquities of exoplanet host stars: Nineteen new and updated measurements, and trends in the sample of 205 measurements
Knudstrup et al. 2024 | Reference Overview -
The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission
Thygesen et al. 2023 | Reference Overview -
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
Empirical Limb-darkening Coefficients and Transit Parameters of Known Exoplanets from TESS
Patel & Espinoza 2022 | Reference Overview -
TESS Transit Timing of Hundreds of Hot Jupiters
Ivshina & Winn 2022 | Reference Overview -
The K2 and TESS Synergy. I. Updated Ephemerides and Parameters for K2-114, K2-167, K2-237, and K2-261
Ikwut-Ukwa et al. 2020 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
K2-260 b: a hot Jupiter transiting an F star, and K2-261 b: a warm Saturn around a bright G star
Johnson et al. 2018 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | 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
- External Link
- Search
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