NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

Kepler-888 Overview

Kepler-888 0.92 R⦿ 5739.00 K
Kepler-888 b
0.157 RJup
Architecture
Kepler-888
Kepler-888
Kepler-888 b
Other Data
Bibliography 18
Exoplanet Archive Notes 1
Nearby Data 7
Discovery Data
Host Planet Method Year Reference Disposition
Kepler-888 Kepler-888 b Transit 2016 Morton et al. 2016 Confirmed Planet
Kepler-888 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
19h42m05.11s
Dec
+49d44m19.25s
Distance
420.817+3.221-3.172
pc
Parallax
2.3475400±0.0179144 mas
Ecliptic Latitude
68.76843 deg
Ecliptic Longitude
320.25063 deg
Galactic Latitude
12.81989 deg
Galactic Longitude
82.64032 deg
Total Proper Motion
20.6898512±0.0312129 mas/yr
Proper Motion (RA)
16.088700±0.031134 mas/yr
Proper Motion (Dec)
13.0086000±0.0313333 mas/yr
Photometry
mV
13.061±0.069
mTESS
12.5648±0.0073
mJ
11.915±0.019
mH
11.657±0.019
mKs
11.594±0.019
mKep
13.046
mW1
11.545±0.022
mW2
11.573±0.020
mW3
11.398±0.126
mW4
9.325
mGaia
12.981400±0.000324
mB
13.646±0.121
mg
13.424
mi
12.884
mr
12.993
mz
12.829
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 Fulton & Petigura 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 Q1-Q6 KOI Table Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
5820.630+104.107-132.064
 5739±115
5982.000+600.255-126.500
5875.000+66.362-56.695
 5924 5924 5739±60 ---
5811 +104-116
6174 +158-180
6174 +158-180
6174.00 +158.00-180.00
6190.00±78.00 5924
Metallicity
(dex)
-0.369±0.041 [M/H] --- ---
-0.210+0.096-0.098
[Fe/H] 		--- -0.265 [Fe/H] -0.32±0.04 [Fe/H] --- -0.2±0.15 [Fe/H]
-0.260 +0.280-0.300
[Fe/H]
-0.260 +0.280-0.300
[Fe/H]
-0.260 +0.280-0.300
[Fe/H] 		--- ---
Age
(Gyr)
--- --- ---
1.480+0.644-0.300
 --- ---
10.00+2.02-2.24
 --- --- --- --- --- 3.7±1.1 ---
ρ✶
(g/cm3)
1.8071717+0.4016059-0.3185164
 --- --- --- --- ---
1.06+0.06-0.05
 ---
2.14974 +0.08257-0.65134
2.07213 +0.14366-0.64842
2.07213 +0.14366-0.64842
2.07213 +0.14366-0.64842
--- ---
M✶
(M⦿)
1.050000+0.101152-0.158286
 --- --- 0.97±0.03 --- ---
0.831+0.028-0.023
 ---
0.94 +0.045-0.077
0.991 +0.18-0.11
0.991 +0.18-0.11
0.9910 +0.1800-0.1100
1.0800±0.1200 ---
R✶
(R⦿)
0.9356610+0.0447261-0.0432839
0.931+0.040-0.038
0.86251520+0.03766950-0.15013800
0.900+0.029-0.026
 1.10 1.194 0.921±0.022 ---
0.866 +0.118-0.05
1.147 +0.49-0.174
1.147 +0.49-0.174
1.1470 +0.4900-0.1740
1.1800±0.4600 1.1
log g
(log10(cm/s2))
4.5170200+0.0698544-0.0745432
 --- --- 4.520±0.015 4.34 4.33 --- ---
4.536 +0.03-0.113
4.316 +0.131-0.26
4.316 +0.131-0.26
4.316 +0.131-0.260
4.330±0.300 4.34
L✶
(log10(L⦿))
-0.04318834+0.01687478-0.01288188
 ---
-0.06638609+0.00808024-0.00823343
 --- --- --- --- --- --- --- --- --- --- ---
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 Holczer et al. 2016 Fulton & Petigura 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
P
(days)
70.6979061±0.0003086 70.6987088793±0.0002307995 --- 70.69771113±0.00000595 70.697906100±0.000308600 70.6981724±0.0003535 70.6981724±0.0003535 70.6979061±0.0003086 70.6979061±0.0003086 70.6979061±0.0003086 70.6985±0.001
TC
(days)
2455021.57029±0.00361 2455021.56866000±0.00270107 --- 2455021.568665±0.005454 --- 2455021.568±0.00403 2455021.568±0.00403 2455021.57±0.00361 2455021.57±0.00361 2455021.57±0.00361 2455021.5649±0.0051
a/R✶
--- --- --- --- --- --- 82.82±3.2 81.81±5.7 81.81±5.7 81.81±5.7 83±28
Teq
(K)
--- --- --- --- --- --- 417 505 505 505 505
b
--- --- --- --- --- ---
0.026 +0.4-0.026
0.1724 +0.2758-0.1723
0.1724 +0.2758-0.1723
0.1724 +0.2758-0.1723
0.24±0.65
S
(S⨁)
--- ---
7.854+0.183-0.179
 --- 8.3±0.6 ---
7.11 +2.75-1.28
15.33 +19.21-5.53
15.33 +19.21-5.53
15.33 +19.21-5.53
---
e
--- --- --- --- --- --- 0 0 0 0 0
i
(deg)
--- --- --- --- --- --- 89.98 89.95 89.95 89.95 89.95
Rp
(R⨁)
1.76+0.08-0.06
 ---
1.751+0.093-0.079
 --- 1.811±0.061 ---
1.63 +0.22-0.1
2.26 +0.96-0.35
2.26 +0.96-0.35
2.26 +0.96-0.35
2.22±0.88
Rp
(RJup)
0.157+0.007-0.005
 ---
0.1562+0.0083-0.0070
 --- 0.1616±0.0054 ---
0.145+0.020-0.009
0.202+0.086-0.031
0.202+0.086-0.031
0.202+0.086-0.031
0.198+0.079-0.079
Rp/R✶
0.018018 +0.000531-0.000322
--- --- ---
0.018018+0.000531-0.000322
 ---
0.017221 +0.000549-0.000341
0.018018 +0.000531-0.000322
0.018018 +0.000531-0.000322
0.018018 +0.000531-0.000322
0.0173±0.0013
a
(au)
--- --- --- --- 0.31481±0.00319 --- .328 .3341 .3341 .3341 .344
δ
(%)
--- --- --- 0.0381 --- ---
0.03577+0.00110-0.00110
 0.03831±0.00105 0.03831±0.00105 0.03831±0.00105 0.03540
T14
(hours)
6.624±0.101 --- --- 6.8127 --- --- 6.632±0.104 6.624±0.101 6.624±0.101 6.624±0.101 6.4663
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 11669125 11669125 11669125 11669125 11669125 11669125 11669125
KOI Name K01535.01 K01535.01 K01535.01 K01535.01 K01535.01 K01535.01 K01535.01
Kepler Name Kepler-888 b Kepler-888 b Kepler-888 b Kepler-888 b Kepler-888 b Kepler-888 b Kepler-888 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 CANDIDATE NOT DISPOSITIONED CANDIDATE 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] 70.6981724±0.0003535 70.6981724±0.0003535 70.6979061±0.0003086 70.6979061±0.0003086 70.6979061±0.0003086 70.6985±0.001 70.6985±0.001
Transit Epoch [BKJD] 188.56795±0.00403 188.56795±0.00403 188.57029±0.00361 188.57029±0.00361 188.57029±0.00361 188.5649±0.0051 188.5649±0.0052
Transit Epoch [BJD] 2455021.568±0.00403 2455021.568±0.00403 2455021.57±0.00361 2455021.57±0.00361 2455021.57±0.00361 2455021.5649±0.0051 2455021.5649±0.0052
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 kplr011669125-20160209194854_dvr.pdf kplr011669125-20160209194854_dvr.pdf kplr011669125-20141002224145_dvr.pdf kplr011669125-20130815195353_dvr.pdf kplr011669125-20121029204534_dvr.pdf --- ---
RA [decimal degrees] 295.52121 295.52121 295.52121 295.52121 295.52121 295.52121 295.52121
Dec [decimal degrees] 49.738628 49.738628 49.738628 49.738628 49.738628 49.738628 49.738628
Kepler-band [mag] 13.046000000000001 13.046000000000001 13.046000000000001 13.046000000000001 13.046000000000001 13.046000000000001 13.046000000000001
g'-band [mag] 13.424000000000001 13.424000000000001 13.424000000000001 13.424000000000001 13.424000000000001 13.424000000000001 13.424000000000001
r'-band [mag] 12.993 12.993 12.993 12.993 12.993 12.993 12.993
i'-band [mag] 12.884 12.884 12.884 12.884 12.884 12.884 12.884
z'-band [mag] 12.829 12.829 12.829 12.829 12.829 12.829 12.829
J-band [mag] 11.915000000000001 11.915000000000001 11.915000000000001 11.915000000000001 11.915000000000001 11.915000000000001 11.915000000000001
H-band [mag] 11.657 11.657 11.657 11.657 11.657 11.657 11.657
K-band [mag] 11.594000000000001 11.594000000000001 11.594000000000001 11.594000000000001 11.594000000000001 11.594000000000001 11.594000000000001
Disposition Score --- 0.9560000000000001 --- --- --- --- ---
Comment --- NO_COMMENT --- --- --- --- ---
Eccentricity --- 0 0 0 0 0 0
Impact Parameter ---
0.026 +0.4-0.026
0.1724 +0.2758-0.1723
0.1724 +0.2758-0.1723
0.1724 +0.2758-0.1723
0.24±0.65 0.24±0.8
Transit Duration [hrs] --- 6.632±0.104 6.624±0.101 6.624±0.101 6.624±0.101 6.4663 6.4663
Transit Depth [ppm] --- 357.7±11 383.1±10.5 383.1±10.5 383.1±10.5 354 362
Planet-Star Radius Ratio ---
0.017221 +0.000549-0.000341
0.018018 +0.000531-0.000322
0.018018 +0.000531-0.000322
0.018018 +0.000531-0.000322
0.0173±0.0013 0.0173±0.0013
Fitted Stellar Density [g/cm**3] ---
2.14974 +0.08257-0.65134
2.07213 +0.14366-0.64842
2.07213 +0.14366-0.64842
2.07213 +0.14366-0.64842
--- ---
Planetary Fit Type --- LS+MCMC MCMC MCMC MCMC --- ---
Planetary Radius [Earth radii] ---
1.63 +0.22-0.1
2.26 +0.96-0.35
2.26 +0.96-0.35
2.26 +0.96-0.35
2.22±0.88 2.07
Orbit Semi-Major Axis [au] --- .328 .3341 .3341 .3341 .344 .33
Inclination [deg] --- 89.98 89.95 89.95 89.95 89.95 ---
Equilibrium Temperature [K] --- 417 505 505 505 505 476
Insolation Flux [Earth flux] ---
7.11 +2.75-1.28
15.33 +19.21-5.53
15.33 +19.21-5.53
15.33 +19.21-5.53
--- ---
Planet-Star Distance over Star Radius --- 82.82±3.2 81.81±5.7 81.81±5.7 81.81±5.7 83±28 83±28
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 0.13240000000000002 ---
Limb Darkening Coeff. 3 --- 0.0 0.0 0.0 0.0 -0.5219 ---
Limb Darkening Coeff. 2 --- 0.2711 0.3002 0.3002 0.3002 0.7461 ---
Limb Darkening Coeff. 1 --- 0.38580000000000003 0.32120000000000004 0.32120000000000004 0.32120000000000004 0.3361 ---
Maximum Single Event Statistic --- 9.574919999999999 10.05323 --- --- --- ---
Maximum Multiple Event Statistic --- 31.932688 32.747147 --- --- --- ---
Transit Signal-to-Noise --- 37.7 40.1 40.1 40.1 42.800000000000004 26.3
Number of Transits --- 18 18 --- --- --- ---
TCE Planet Number --- 1 1 1 1 --- ---
Quarters --- 11111111111111111000000000000000 11111111111111111000000000000000 --- --- --- ---
Odd-Even Depth Comparision Statistic --- 0.9676 --- --- --- --- ---
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 --- kplr011669125-001-20160209194854_dvs.pdf kplr011669125-001-20141002224145_dvs.pdf kplr011669125-001-20130826182306_dvs.pdf kplr011669125-001-20121115231752_dvs.pdf --- ---
Stellar Effective Temperature [K] ---
5811 +104-116
6174 +158-180
6174 +158-180
6174.00 +158.00-180.00
6190.00±78.00 5924
Stellar Surface Gravity [log10(cm/s**2)] ---
4.536 +0.03-0.113
4.316 +0.131-0.26
4.316 +0.131-0.26
4.316 +0.131-0.260
4.330±0.300 4.34
Stellar Metallicity [dex] --- -0.2±0.15
-0.260 +0.280-0.300
-0.260 +0.280-0.300
-0.260 +0.280-0.300
--- ---
Stellar Radius [Solar radii] ---
0.866 +0.118-0.05
1.147 +0.49-0.174
1.147 +0.49-0.174
1.1470 +0.4900-0.1740
1.1800±0.4600 1.1
Stellar Mass [Solar mass] ---
0.94 +0.045-0.077
0.991 +0.18-0.11
0.991 +0.18-0.11
0.9910 +0.1800-0.1100
1.0800±0.1200 ---
Stellar Parameter Provenance --- q1_q17_dr25_stellar stellar_q1_q16 stellar_q1_q16 stellar_q1_q16 Pinsonneault KIC
FW Offset Significance [percent] --- 0.023 0.0 0.001 0.0 0.013000000000000001 ---
FW Source α(OOT) [hrs] --- 19.7014168±0.000009 19.7014258±0.0000094 19.7014182±0.0000094 19.701428000±0.000013000 19.701419000±0.000015000 ---
FW Source δ(OOT) [deg] --- 49.738671±0.000089 49.738732±0.000091 49.738716±0.000089 49.73879000±0.00012000 49.73875000±0.00014000 ---
FW Source Δα(OOT) [sec] --- 0.1±0.31 0.41±0.33 0.15±0.33 0.07400±0.04600 0.04300±0.05400 ---
FW Source Δδ(OOT) [arcsec] --- 0.15±0.32 0.37±0.33 0.31±0.32 0.05300±0.03000 0.04600±0.03300 ---
FW Δα(OOT) [sec] --- -0.00013±0.00012 -0.00024±0.00013 -0.00014±0.00013 -2.7e-05±1.6e-05 -1.56e-05±9.8e-06 ---
FW Δδ(OOT) [arcsec] --- -0.00016±0.00012 -0.00023±0.00013 -0.00021±0.00012 -1.9e-05±1.1e-05 -1.69e-05±6.1e-06 ---
PRF ΔαSQ(OOT) [arcsec] --- 0.45±0.23 0.41±0.24 0.31±0.23 0.1000±0.3000 0.2100±0.3000 ---
PRF ΔδSQ(OOT) [arcsec] --- 0.39±0.26 0.42±0.25 0.4±0.24 -0.0600±0.2800 0.0400±0.1900 ---
PRF ΔθSQ(OOT) [arcsec] --- 0.6±0.29 0.58±0.29 0.5±0.28 0.1100±0.2900 0.2100±0.3000 ---
PRF ΔαSQ(KIC) [arcsec] --- 0.59±0.22 0.56±0.23 0.44±0.22 0.1900±0.3200 0.3300±0.3200 ---
PRF ΔδSQ(KIC) [arcsec] --- 0.6±0.23 0.62±0.23 0.65±0.23 0.1300±0.2600 0.1800±0.2700 ---
PRF ΔθSQ(KIC) [arcsec] --- 0.84±0.25 0.83±0.25 0.79±0.26 0.2300±0.3000 0.3700±0.3100 ---
Chi-Square --- --- --- --- --- 0.9 0.8300000000000001
Stellar Age [Gyr] --- --- --- --- --- 3.7±1.1 ---
Known Objects
1 Confirmed Planets
1 Kepler Objects of Interest (KOIs)
1 Threshold Crossing Events (TCEs)
5 2MASS Point Source Catalog
Data Files
2 Kepler Time Series
1 SuperWASP Time Series
1 Associated Literature Data
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

NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.