TOI-257 Overview

TOI-257 1.76 R⦿ 6382.70 K
TOI-257 b
0.639 RJup
Architecture
TOI-257
TOI-257
TOI-257 b
Other Data
Bibliography 3
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+0.1953-0.1943
pc
Parallax
12.9746000±0.0326954 mas
Ecliptic Latitude
-63.71518 deg
Ecliptic Longitude
15.58233 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
mV
7.57±0.03
mTESS
7.0286±0.0060
mJ
6.504±0.019
mH
6.325±0.021
mKs
6.256±0.021
mW1
6.209±0.100
mW2
6.084±0.033
mW3
6.239±0.015
mW4
6.172±0.048
mGaia
7.416530±0.000296
mB
8.159±0.024
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
1.76557±0.072387
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 ExoFOP-TESS TOI Show Candidate Solutions >> << Hide Candidate Solutions
a/R
17.60+0.36-0.35
---
Tp
(days)
2458385.7601+0.0013-0.0012
---
Teq
(K)
1027±18 972.425901
b
0.643+0.019-0.020
---
S
(S)
186+14-12
211.323149
Mp
(M)
43.9±7.3 ---
Mp
(MJup)
0.138±0.023 ---
e
0 ---
i
(deg)
87.91+0.11-0.10
---
P
(days)
18.38818+0.00085-0.00084
18.385185±0.001613
ρ
(g/cm3)
0.65+0.12-0.11
---
Rp
(R)
7.16±0.15 6.706052±0.320143
Rp
(RJup)
0.639±0.013 ---
Rp/R
0.03521±0.00022 ---
K
(m/s)
8.5±1.4 ---
a
(au)
0.1528+0.0016-0.0017
---
δ
(%)
0.1240±0.0016 0.1279918778±0.0036351303
T14
(hours)
6.485±0.031 6.532548±0.098787
TC
(days)
2458385.7601+0.0013-0.0012
2459121.270086±0.001132
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
4 KELT Time Series
1 Associated Literature Data
System
Star
Confirmed
Candidate
Refuted
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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