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Kepler-1257 Overview

Kepler-1257 0.57 R⦿ 5542.00 K
Kepler-1257 b
0.136 RJup
Architecture
Kepler-1257
Kepler-1257
Kepler-1257 b
Other Data
Bibliography 16
Exoplanet Archive Notes 1
Nearby Data 7
Discovery Data
Host Planet Method Year Reference Disposition
Kepler-1257 Kepler-1257 b Transit 2016 Morton et al. 2016 Confirmed Planet
Kepler-1257 b
  • Orbital period, transit mid-point, transit duration, Rp/Rs and their errors taken from DR24 KOI table. Planet radius error propagated from stellar radius error in ref. and Rp/Rs error. (Morton et al. 2016)
RA
19h44m18.15s
Dec
+45d37m37.26s
Distance
1105.95±42.89 pc
Parallax
0.8768070±0.0347433 mas
Ecliptic Latitude
64.91505 deg
Ecliptic Longitude
316.47314 deg
Galactic Latitude
10.58208 deg
Galactic Longitude
79.09698 deg
Total Proper Motion
12.8839790±0.0625732 mas/yr
Proper Motion (RA)
-9.3953400±0.0638649 mas/yr
Proper Motion (Dec)
-8.816150±0.061073 mas/yr
Photometry
mV
15.644±0.183
mTESS
14.9945±0.0093
mJ
14.289±0.024
mH
13.851±0.032
mKs
13.848±0.045
mKep
15.553
mW1
13.844±0.028
mW2
13.907±0.032
mW3
12.695
mW4
8.961
mGaia
15.51240±0.00049
mB
16.478±0.011
mg
---
mi
---
mr
---
mz
---
Mission
Tools
ExoFOP Target Overview Page
IRSA Finding Chart
Kepler Names
KOI
Kepler Stellar Data
Kepler Positional Probabilities
Q1-Q17 DR25 False Positive Probabilities
Kepler Certified False Positive
Q1-Q16 DR25 TCE
Stellar Hosts
Kepler Time Series
Kepler TCE Time Series
Source TICv8 Berger et al. 2018 Gaia DR2 Morton et al. 2016 Batalha et al. 2013 Latham et al. 2005 Q1-Q17 DR25 Supplemental KOI Table Q1-Q17 DR25 KOI Table Q1-Q17 DR24 KOI Table Q1-Q16 KOI Table Q1-Q12 KOI Table Q1-Q8 KOI Table Q1-Q6 KOI Table Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
5371.03±136.72 5822±204
5339.3+28.7-19.3
5502.000+168.318-93.917
 5542 5542 ---
5806 +157-192
5806 +172-186
5806 +172-186
5806.00 +172.00-186.00
5782.00±126.00 5542
Metallicity
(dex)
0.00272880±0.01493900 [M/H] --- ---
-0.0900+0.1470-0.1770
[Fe/H] 		--- -0.015 [Fe/H] ---
-0.04 +0.25-0.3
[Fe/H]
-0.040 +0.220-0.280
[Fe/H]
-0.040 +0.220-0.280
[Fe/H]
-0.040 +0.220-0.280
[Fe/H] 		--- ---
R✶
(R⦿)
0.987251
0.866+0.075-0.068
0.92709345+0.00673875-0.00988698
0.870+0.096-0.067
 0.84 0.573 ---
0.899 +0.231-0.077
0.899 +0.298-0.073
0.899 +0.298-0.073
0.8990 +0.2980-0.0730
0.8600±0.3800 .84
log g
(log10(cm/s2))
4.4177 --- ---
4.520+0.051-0.097
 4.57 4.90 ---
4.528 +0.042-0.168
4.528 +0.03-0.248
4.528 +0.03-0.248
4.528 +0.030-0.248
4.550±0.300 4.57
M✶
(M⦿)
0.93 --- ---
0.900+0.056-0.053
 0.94 --- ---
0.996 +0.104-0.127
0.996 +0.092-0.118
0.996 +0.092-0.118
0.9960 +0.0920-0.1180
0.9690±0.0900 ---
Age
(Gyr)
--- --- ---
4.37+5.36-2.73
 --- --- --- --- --- --- --- 0.4±3.4 ---
L✶
(log10(L⦿))
-0.1362201 ---
-0.20112105+0.03860857-0.04237882
 --- --- --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
1.3625929 --- --- --- --- --- ---
1.42361 +0.55736-0.29979
1.57121 +0.41741-0.47066
1.57121 +0.41741-0.47066
1.57121 +0.41741-0.47066
--- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Transit Prediction Service
Kepler Names
KOI
Transit
Source Morton et al. 2016 GajdoĊĦ et al. 2019 Berger et al. 2018 Q1-Q17 DR25 Supplemental KOI Table Q1-Q17 DR25 KOI Table Q1-Q17 DR24 KOI Table Q1-Q16 KOI Table Q1-Q12 KOI Table Q1-Q8 KOI Table Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
--- --- --- --- 8.12±3.2 8.39±2.2 8.39±2.2 8.39±2.2 6.2±2.6
Teq
(K)
--- --- --- --- 1252 1252 1252 1252 1230
b
--- --- --- ---
0.333 +0.122-0.333
0.2971 +0.1677-0.2971
0.2971 +0.1677-0.2971
0.2971 +0.1677-0.2971
0.66±0.48
S
(S⨁)
--- ---
546.908+50.891-45.798
 ---
581.38 +440.61-156.50
581.38 +576.98-150.52
581.38 +576.98-150.52
581.38 +576.98-150.52
---
e
--- --- --- --- 0 0 0 0 0
i
(deg)
--- --- --- --- 87.65 88.24 88.24 88.24 83.65
P
(days)
2.668313762±9.861e-06 2.6682811864±0.0000096829 --- 2.66831274±1.026e-05 2.66831274±1.026e-05 2.668313762±9.861e-06 2.668313762±9.861e-06 2.668313762±9.861e-06 2.668362±3.7e-05
Rp
(R⨁)
1.52+0.18-0.12
 ---
1.421+0.134-0.123
 ---
1.48 +0.37-0.13
1.55 +0.52-0.12
1.55 +0.52-0.12
1.55 +0.52-0.12
1.44±0.65
Rp/R✶
0.01582 +0.000778-0.000387
--- --- ---
0.015027 +0.000538-0.000535
0.01582 +0.000778-0.000387
0.01582 +0.000778-0.000387
0.01582 +0.000778-0.000387
0.0154±0.0017
a
(au)
--- --- --- --- .0376 .0376 .0376 .0376 .037
δ
(%)
--- --- --- --- 0.02662±0.00134 0.02969±0.00149 0.02969±0.00149 0.02969±0.00149 0.02530
T14
(hours)
2.3659±0.0878 --- --- --- 2.4141±0.0924 2.3659±0.0878 2.3659±0.0878 2.3659±0.0878 2.5356
TC
(days)
2454964.68877±0.00274 2454964.69794000±0.00189683 --- 2454964.688±0.00287 2454964.688±0.00287 2454964.689±0.00274 2454964.689±0.00274 2454964.689±0.00274 2454964.6823±0.0043
Rp
(RJup)
0.136+0.016-0.011
 ---
0.1268+0.0120-0.0110
 --- --- --- --- --- ---
Print
Kepler Detection Products (4 File Types, 15 Files)
Kepler Pipeline Data Validation Reports q1_q12_tce q1_q16_tce q1_q17_dr24_tce q1_q17_dr25_tce
Kepler Pipeline Data Validation Summaries q1_q12_tce q1_q16_tce q1_q17_dr24_tce q1_q17_dr25_tce
Kepler TCERT Reports q1_q16_tce q1_q17_dr24_tce q1_q17_dr25_tce
Kepler Planet Detection Metrics q1_q17_dr24_stellar q1_q17_dr24_stellar q1_q17_dr25_stellar q1_q17_dr25_stellar
Kepler Detection Products
Kepler Pipeline Data Validation Summaries q1_q12_tce q1_q16_tce q1_q17_dr24_tce q1_q17_dr25_tce
Kepler Object of Interest
KepID 9229657 9229657 9229657 9229657 9229657 9229657 9229657
KOI Name K02491.01 K02491.01 K02491.01 K02491.01 K02491.01 K02491.01 K02491.01
Kepler Name Kepler-1257 b Kepler-1257 b Kepler-1257 b Kepler-1257 b Kepler-1257 b Kepler-1257 b Kepler-1257 b
Exoplanet Archive Disposition CONFIRMED CONFIRMED CONFIRMED CONFIRMED CONFIRMED CONFIRMED CONFIRMED
Vetting Status Done Done Done Done Done Done Done
Date of Last Parameter Update 2018-08-16 2017-08-31 2015-09-24 2014-12-18 2014-12-04 2014-01-07 2013-02-12
Disposition Using Kepler Data CANDIDATE CANDIDATE CANDIDATE NOT DISPOSITIONED NOT DISPOSITIONED NOT DISPOSITIONED CANDIDATE
Not Transit-Like False Positive Flag 0 0 0 0 0 --- ---
Stellar Eclipse False Positive Flag 0 0 0 0 0 --- ---
Centroid Offset False Positive Flag 0 0 0 0 0 --- ---
Ephemeris Match Indicates Contamination False Positive Flag 0 0 0 0 0 --- ---
Disposition Provenance q1_q17_dr25_sup_koi q1_q17_dr25_koi q1_q17_dr24_koi q1_q16_koi q1_q12_koi q1_q8_koi q1_q6_kepler_candidates
Orbital Period [days] 2.66831274±1.026e-05 2.66831274±1.026e-05 2.668313762±9.861e-06 2.668313762±9.861e-06 2.668313762±9.861e-06 2.668362±3.7e-05 2.668362±3.7e-05
Transit Epoch [BKJD] 131.68823±0.00287 131.68823±0.00287 131.68877±0.00274 131.68877±0.00274 131.68877±0.00274 131.6823±0.0043 131.6823±0.0043
Transit Epoch [BJD] 2454964.688±0.00287 2454964.688±0.00287 2454964.689±0.00274 2454964.689±0.00274 2454964.689±0.00274 2454964.6823±0.0043 2454964.6823±0.0043
Parameters Provenance q1_q17_dr25_sup_koi q1_q17_dr25_koi q1_q17_dr24_koi q1_q16_koi q1_q12_koi q1_q8_koi q1_q6_kepler_candidates
Number of Planets 1 1 1 1 1 1 1
TCE Delivery q1_q17_dr25_tce q1_q17_dr25_tce q1_q17_dr24_tce q1_q16_tce q1_q12_tce --- ---
Link to DV Report kplr009229657-20160209194854_dvr.pdf kplr009229657-20160209194854_dvr.pdf kplr009229657-20141002224145_dvr.pdf kplr009229657-20130815195353_dvr.pdf kplr009229657-20121029204534_dvr.pdf --- ---
RA [decimal degrees] 296.07568 296.07568 296.07568 296.07568 296.07568 296.07568 296.07568
Dec [decimal degrees] 45.62706 45.62706 45.62706 45.62706 45.62706 45.62706 45.62706
Kepler-band [mag] 15.553 15.553 15.553 15.553 15.553 15.553 15.553
g'-band [mag] 16.054000000000002 16.054000000000002 16.054000000000002 16.054000000000002 16.054000000000002 16.054000000000002 16.054000000000002
r'-band [mag] 15.458 15.458 15.458 15.458 15.458 15.458 15.458
i'-band [mag] 15.338000000000001 15.338000000000001 15.338000000000001 15.338000000000001 15.338000000000001 15.338000000000001 15.338000000000001
z'-band [mag] 15.219000000000001 15.219000000000001 15.219000000000001 15.219000000000001 15.219000000000001 15.219000000000001 15.219000000000001
J-band [mag] 14.289000000000001 14.289000000000001 14.289000000000001 14.289000000000001 14.289000000000001 14.289000000000001 14.289000000000001
H-band [mag] 13.851 13.851 13.851 13.851 13.851 13.851 13.851
K-band [mag] 13.848 13.848 13.848 13.848 13.848 13.848 13.848
Disposition Score --- 1.0 --- --- --- --- ---
Comment --- NO_COMMENT --- --- --- --- ---
Eccentricity --- 0 0 0 0 0 0
Impact Parameter ---
0.333 +0.122-0.333
0.2971 +0.1677-0.2971
0.2971 +0.1677-0.2971
0.2971 +0.1677-0.2971
0.66±0.48 0.66±0.69
Transit Duration [hrs] --- 2.4141±0.0924 2.3659±0.0878 2.3659±0.0878 2.3659±0.0878 2.5356 2.5356
Transit Depth [ppm] --- 266.2±13.4 296.9±14.9 296.9±14.9 296.9±14.9 253 266
Planet-Star Radius Ratio ---
0.015027 +0.000538-0.000535
0.01582 +0.000778-0.000387
0.01582 +0.000778-0.000387
0.01582 +0.000778-0.000387
0.0154±0.0017 0.0154±0.0017
Fitted Stellar Density [g/cm**3] ---
1.42361 +0.55736-0.29979
1.57121 +0.41741-0.47066
1.57121 +0.41741-0.47066
1.57121 +0.41741-0.47066
--- ---
Planetary Fit Type --- LS+MCMC MCMC MCMC MCMC --- ---
Planetary Radius [Earth radii] ---
1.48 +0.37-0.13
1.55 +0.52-0.12
1.55 +0.52-0.12
1.55 +0.52-0.12
1.44±0.65 1.4
Orbit Semi-Major Axis [au] --- .0376 .0376 .0376 .0376 .037 .037
Inclination [deg] --- 87.65 88.24 88.24 88.24 83.65 ---
Equilibrium Temperature [K] --- 1252 1252 1252 1252 1230 1163
Insolation Flux [Earth flux] ---
581.38 +440.61-156.50
581.38 +576.98-150.52
581.38 +576.98-150.52
581.38 +576.98-150.52
--- ---
Planet-Star Distance over Star Radius --- 8.12±3.2 8.39±2.2 8.39±2.2 8.39±2.2 6.2±2.6 6.2±2.6
Limb Darkening Model --- Claret (2011 A&A 529 75) ATLAS LS Claret (2011 A&A 529 75) ATLAS LS Claret (2011 A&A 529 75) ATLAS LS Claret (2011 A&A 529 75) ATLAS LS Claret (2011 A&A 529 75) ATLAS LS Claret (2011 A&A 529 75) ATLAS LS
Limb Darkening Coeff. 4 --- 0.0 0.0 0.0 0.0 -0.1673 ---
Limb Darkening Coeff. 3 --- 0.0 0.0 0.0 0.0 0.1796 ---
Limb Darkening Coeff. 2 --- 0.2622 0.2731 0.2731 0.2731 0.2876 ---
Limb Darkening Coeff. 1 --- 0.4035 0.384 0.384 0.384 0.434 ---
Maximum Single Event Statistic --- 3.7475994 4.712369 --- --- --- ---
Maximum Multiple Event Statistic --- 20.38139 21.16778 --- --- --- ---
Transit Signal-to-Noise --- 23.3 23.900000000000002 23.900000000000002 23.900000000000002 26.2 17.900000000000002
Number of Transits --- 503 503 --- --- --- ---
TCE Planet Number --- 1 1 1 1 --- ---
Quarters --- 11111111111111111000000000000000 11111111111111111000000000000000 --- --- --- ---
Odd-Even Depth Comparision Statistic --- 0.8254 --- --- --- --- ---
Transit Model --- Mandel and Agol (2002 ApJ 580 171) Mandel and Agol (2002 ApJ 580 171) Mandel and Agol (2002 ApJ 580 171) Mandel and Agol (2002 ApJ 580 171) Mandel and Agol (2002 ApJ 580 171) Mandel and Agol (2002 ApJ 580 171)
Link to DV Summary --- kplr009229657-001-20160209194854_dvs.pdf kplr009229657-001-20141002224145_dvs.pdf kplr009229657-001-20130826182306_dvs.pdf kplr009229657-001-20121115231752_dvs.pdf --- ---
Stellar Effective Temperature [K] ---
5806 +157-192
5806 +172-186
5806 +172-186
5806.00 +172.00-186.00
5782.00±126.00 5542
Stellar Surface Gravity [log10(cm/s**2)] ---
4.528 +0.042-0.168
4.528 +0.03-0.248
4.528 +0.03-0.248
4.528 +0.030-0.248
4.550±0.300 4.57
Stellar Metallicity [dex] ---
-0.04 +0.25-0.3
-0.040 +0.220-0.280
-0.040 +0.220-0.280
-0.040 +0.220-0.280
--- ---
Stellar Radius [Solar radii] ---
0.899 +0.231-0.077
0.899 +0.298-0.073
0.899 +0.298-0.073
0.8990 +0.2980-0.0730
0.8600±0.3800 .84
Stellar Mass [Solar mass] ---
0.996 +0.104-0.127
0.996 +0.092-0.118
0.996 +0.092-0.118
0.9960 +0.0920-0.1180
0.9690±0.0900 ---
Stellar Parameter Provenance --- q1_q17_dr25_stellar stellar_q1_q16 stellar_q1_q16 stellar_q1_q16 Pinsonneault KIC
FW Offset Significance [percent] --- 0.0 0.0 0.0 0.0 --- ---
FW Source α(OOT) [hrs] --- 19.738342±0.000017 19.738329±0.000016 19.738351±0.000015 19.738323000±0.000017000 --- ---
FW Source δ(OOT) [deg] --- 45.62677±0.00017 45.6268±0.00016 45.62671±0.00015 45.62662000±0.00018000 --- ---
FW Source Δα(OOT) [sec] --- -1.37±0.63 -1.86±0.61 -1.01±0.55 -0.21300±0.06200 --- ---
FW Source Δδ(OOT) [arcsec] --- -1.06±0.61 -0.94±0.59 -1.25±0.55 -0.10800±0.04200 --- ---
FW Δα(OOT) [sec] --- 0.00041±0.00017 0.00056±0.00017 0.00035±0.00017 6.7e-05±1.9e-05 --- ---
FW Δδ(OOT) [arcsec] --- 0.00029±0.00017 0.00026±0.00016 0.00039±0.00017 3.4e-05±1.3e-05 --- ---
PRF ΔαSQ(OOT) [arcsec] --- 0.08±0.33 0.07±0.24 0.06±0.49 0.1200±0.3600 --- ---
PRF ΔδSQ(OOT) [arcsec] --- 0.09±0.31 0.12±0.22 0.01±0.47 -0.0900±0.1800 --- ---
PRF ΔθSQ(OOT) [arcsec] --- 0.12±0.3 0.14±0.26 0.06±0.65 0.1500±0.3100 --- ---
PRF ΔαSQ(KIC) [arcsec] --- 0.06±0.37 0.05±0.25 0.05±0.49 0.1100±0.3500 --- ---
PRF ΔδSQ(KIC) [arcsec] --- -0.01±0.33 0.03±0.22 -0.09±0.47 -0.1800±0.1900 --- ---
PRF ΔθSQ(KIC) [arcsec] --- 0.06±0.38 0.06±0.24 0.1±0.64 0.2100±0.2400 --- ---
Chi-Square --- --- --- --- --- 1.18 1.2
Stellar Age [Gyr] --- --- --- --- --- 0.4±3.4 ---
Known Objects
1 Confirmed Planets
1 Kepler Objects of Interest (KOIs)
1 Threshold Crossing Events (TCEs)
7 2MASS Point Source Catalog
Data Files
1 Kepler Time Series
1 SuperWASP Time Series
1 Associated Literature Data
System
Star
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Candidate
False Positive Planet
Controversial
False Positive
Aliases
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Time Series
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