TOI-257 Overview
TOI-257
1.76
R⦿
6382.70
K
TOI-257 b
0.639
RJup
- Other Data
- Bibliography 4
- Nearby Data 4
Discovery Data
| Host | Planet | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|
| TOI-257 | TOI-257 b | Transit | 2021 | Addison et al. 2021 | Confirmed Planet |
- RA
- 03h10m04.14s
- Dec
- -50d49m56.15s
- Distance
-
76.9028+0.1953-0.1943pc
- Parallax
- 12.9746000±0.0326954 mas
- Ecliptic Latitude
- -63.71518 deg
- Ecliptic Longitude
- 15.57846 deg
- Galactic Latitude
- -54.676 deg
- Galactic Longitude
- 264.52903 deg
- Total Proper Motion
- 101.812740±0.054526 mas/yr
- Proper Motion (RA)
- 97.9122000±0.0516745 mas/yr
- Proper Motion (Dec)
- 27.9112000±0.0818487 mas/yr
- Photometry
-
mV7.57±0.03
-
mTESS7.0286±0.0060
-
mJ6.504±0.019
-
mH6.325±0.021
-
mKs6.256±0.021
-
mW16.209±0.100
-
mW26.084±0.033
-
mW36.239±0.015
-
mW46.172±0.048
-
mGaia7.416530±0.000296
-
mB8.159±0.024
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.33±0.04 dex
-
[C/H] 0.28±0.09 dex
-
[O/H] 0.18±0.09 dex
-
[Na/H] 0.30±0.04 dex
-
[Mg/H] 0.19±0.07 dex
-
[Al/H] 0.29±0.06 dex
-
[Si/H] 0.35±0.05 dex
-
[Ca/H] 0.20±0.06 dex
-
-
[BaII/H] 0.20±0.15 dex
| Source | Addison et al. 2021 | TICv8 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|
|
Teff
(K)
|
6095±89 |
6382.670+113.169-109.378
|
6382.7±111.3 | ||
|
R✶
(R⦿)
|
1.867+0.033-0.032
|
1.7655700+0.0712829-0.0734910
|
1.76557004451752±0.07238700000000 | ||
|
log g
(log10(cm/s2))
|
4.044±0.021 |
4.0515100+0.0821984-0.0796085
|
4.05±0.08 | ||
|
L✶
(log10(L⦿))
|
0.636+0.029-0.029
|
0.6684723+0.0182369-0.0146682
|
--- | ||
|
ρ✶
(g/cm3)
|
0.305+0.019-0.018
|
0.3278861+0.0821392-0.0547726
|
--- | ||
|
M✶
(M⦿)
|
1.407+0.045-0.046
|
1.280000+0.236569-0.143208
|
--- | ||
|
Metallicity
(dex)
|
0.175+0.099-0.098
[Fe/H]
|
--- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Addison et al. 2021 | Kokori et al. 2023 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|
|
Teq
(K)
|
1027±18 | --- | 972.381421789103 | ||
|
S
(S⨁)
|
186+14-12
|
--- | 211.284487534801 | ||
|
P
(days)
|
18.38818+0.00085-0.00084
|
18.387686±0.000028 | 18.3877080853847±0.0000292659200 | ||
|
Rp
(R⨁)
|
7.16±0.15 | --- | 6.37909615920243±0.29591537000000 | ||
|
Rp
(RJup)
|
0.639±0.013 | --- | 0.569105820585669±0.026399846508791 | ||
|
δ
(%)
|
0.1240±0.0016 | --- | 0.119102831919559±0.002517761600000 | ||
|
T14
(hours)
|
6.485±0.031 | --- | 6.40515299694267±0.07700667500000 | ||
|
TC
(days)
|
2458385.7601+0.0013-0.0012
|
2458808.67779±0.00051 | 2459121.27008600±0.00113182 | ||
|
a/R✶
|
17.60+0.36-0.35
|
17.60+0.36-0.35
|
--- | ||
|
Tp
(days)
|
2458385.7601+0.0013-0.0012
|
--- | --- | ||
|
b
|
0.643+0.019-0.020
|
--- | --- | ||
|
Mp
(M⨁)
|
43.9±7.3 | --- | --- | ||
|
Mp
(MJup)
|
0.138±0.023 | --- | --- | ||
|
e
|
0 | --- | --- | ||
|
i
(deg)
|
87.91+0.11-0.10
|
87.91+0.11-0.10
|
--- | ||
|
ρ
(g/cm3)
|
0.65+0.12-0.11
|
--- | --- | ||
|
Rp/R✶
|
0.03521±0.00022 | 0.03521±0.00022 | --- | ||
|
K
(m/s)
|
8.5±1.4 | --- | --- | ||
|
a
(au)
|
0.1528+0.0016-0.0017
|
--- | --- |
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 4 KELT Time Series
- 1 Associated Literature Data
-
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
TOI-257b (HD 19916b): a warm sub-saturn orbiting an evolved F-type star
Addison et al. 2021 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI
- System
- Star
- Confirmed
- Candidate
- False Positive Planet
- Controversial
- False Positive
- Aliases
- Data Access
- Transit Prediction Service
- Time Series
- Kepler | K2
- External Link
- Search
- Browse
- Download
