NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

Kepler-921 Overview

Kepler-921 0.85 R⦿ 5774.00 K
Kepler-921 b
0.256 RJup
Architecture
Kepler-921
Kepler-921
Kepler-921 b
Discovery Data
Host Planet Orbital Separation Planet Size Method Year Reference Disposition
Kepler-921 Kepler-921 b 51.3 d 2.87 R⨁ Transit 2016 Morton et al. 2016 Confirmed Planet
Kepler-921 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
18h58m27.89s
Dec
+49d11m26.68s
Distance
934.4900±17.7865 pc
Parallax
1.0414300±0.0202105 mas
Ecliptic Latitude
71.08205 deg
Ecliptic Longitude
300.57131 deg
Galactic Latitude
19.10488 deg
Galactic Longitude
79.19783 deg
Total Proper Motion
11.2397712±0.0366885 mas/yr
Proper Motion (RA)
4.1393400±0.0346143 mas/yr
Proper Motion (Dec)
-10.4498000±0.0370034 mas/yr
Photometry
mV
14.852±0.115
mTESS
14.2465±0.0064
mJ
13.597±0.027
mH
13.184±0.021
mKs
13.188±0.041
mKep
14.739
mW1
13.168±0.024
mW2
13.207±0.025
mW3
12.881
mW4
9.383
mGaia
14.705500±0.000388
mB
15.473±0.045
mg
15.174
mi
14.553
mr
14.681
mz
14.480
Mission
Tools
Planetary Systems
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)
5572.42±45.00 6040±211
5545.92+198.08-254.45
5663.000+69.962-61.962
 5774 5774 ---
6032 +162-180
6032 +149-175
6032 +149-175
6032.00 +149.00-175.00
6034.00±84.00 5774
Metallicity
(dex)
-0.301±0.043 [M/H] --- ---
-0.120+0.161-0.195
[Fe/H] 		--- -0.164 [Fe/H] --- -0.18±0.3 [Fe/H]
-0.180 +0.250-0.300
[Fe/H]
-0.180 +0.250-0.300
[Fe/H]
-0.180 +0.250-0.300
[Fe/H] 		--- ---
R✶
(R⦿)
1.03697
0.9620+0.0750-0.0680
1.0369960+0.1021290-0.0702878
0.9100+0.1040-0.0750
 0.87 0.853 ---
0.929 +0.291-0.078
0.929 +0.363-0.08
0.929 +0.363-0.08
0.9290 +0.3630-0.0800
0.9400±0.4000 .87
log g
(log10(cm/s2))
4.39776 --- ---
4.500+0.051-0.108
 4.54 4.60 ---
4.508 +0.052-0.208
4.508 +0.039-0.286
4.508 +0.039-0.286
4.508 +0.039-0.286
4.510±0.300 4.54
M✶
(M⦿)
0.98 --- ---
0.930+0.051-0.062
 0.97 --- --- 1.014±0.13
1.014 +0.121-0.126
1.014 +0.121-0.126
1.0140 +0.1210-0.1260
1.0450±0.0820 ---
Age
(Gyr)
--- --- ---
4.27+4.60-2.60
 --- --- --- --- --- --- --- 0.3±2 ---
L✶
(log10(L⦿))
-0.02960091 ---
-0.037856755+0.022249817-0.023451517
 --- --- --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
1.2390766 --- --- --- --- --- ---
2.98696 +0.17960-1.38959
0.06316 +2.49107-0.00000
0.06316 +2.49107-0.00000
0.06316 +2.49107-0.00000
--- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
Kepler Names
KOI
Transit
Source Morton et al. 2016 Berger et al. 2018 Holczer et al. 2016 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)
51.300634±0.0006728 --- 51.30172621±0.00001636 51.3011844±0.0006021 51.3011844±0.0006021 51.300634±0.0006728 51.300634±0.0006728 51.300634±0.0006728 51.3002±0.0014
TC
(days)
2454986.53646±0.00963
(JD)
--- 2454986.524247±0.013057
(BJD)
2454986.526±0.00975
(BJD)
2454986.526±0.00975
(BJD)
2454986.536±0.00963
(BJD)
2454986.536±0.00963
(BJD)
2454986.536±0.00963
(BJD)
2454986.5343±0.0094
(BJD)
a/R✶
--- --- --- --- 74.62±4.5 20.6±10.3 20.6±10.3 20.6±10.3 29.1±9.3
Teq
(K)
--- --- --- --- 492 492 492 492 494
b
--- --- --- ---
0.003 +0.463-0.003
0.9607 +0.002-0.6742
0.9607 +0.002-0.6742
0.9607 +0.002-0.6742
0.928±0.1
S
(S⨁)
---
15.007+0.820-0.772
 --- ---
13.86 +12.72-3.56
13.86 +15.70-3.57
13.86 +15.70-3.57
13.86 +15.70-3.57
---
e
--- --- --- --- 0 0 0 0 0
i
(deg)
--- --- --- --- 90 87.09 87.09 87.09 88.24
Rp
(R⨁)
2.87+0.33-0.73
2.149+0.201-0.167
 --- ---
2.07 +0.65-0.17
2.9 +1.14-0.25
2.9 +1.14-0.25
2.9 +1.14-0.25
2.7±1.2
Rp
(RJup)
0.256+0.029-0.065
0.1917+0.0179-0.0149
 --- ---
0.185+0.058-0.015
0.259+0.102-0.022
0.259+0.102-0.022
0.259+0.102-0.022
0.241+0.107-0.107
Rp/R✶
0.028605 +0.00012-0.006926
--- --- ---
0.020447 +0.00105-0.000654
0.028605 +0.00012-0.006926
0.028605 +0.00012-0.006926
0.028605 +0.00012-0.006926
0.0266±0.0013
a
(au)
--- --- --- --- .2716 .2716 .2716 .2716 .274
δ
(%)
--- --- 0.0578 --- 0.04989±0.00301 0.05814±0.00295 0.05814±0.00295 0.05814±0.00295 0.05590
T14
(hours)
6.987±0.261 --- 5.8938 --- 5.359±0.259 6.987±0.261 6.987±0.261 6.987±0.261 5.8989
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 11337833 11337833 11337833 11337833 11337833 11337833 11337833
KOI Name K01651.01 K01651.01 K01651.01 K01651.01 K01651.01 K01651.01 K01651.01
Kepler Name Kepler-921 b Kepler-921 b Kepler-921 b Kepler-921 b Kepler-921 b Kepler-921 b Kepler-921 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 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] 51.3011844±0.0006021 51.3011844±0.0006021 51.300634±0.0006728 51.300634±0.0006728 51.300634±0.0006728 51.3002±0.0014 51.3002±0.0014
Transit Epoch [BKJD] 153.52571±0.00975 153.52571±0.00975 153.53646±0.00963 153.53646±0.00963 153.53646±0.00963 153.5343±0.0094 153.5343±0.0094
Transit Epoch [BJD] 2454986.526±0.00975 2454986.526±0.00975 2454986.536±0.00963 2454986.536±0.00963 2454986.536±0.00963 2454986.5343±0.0094 2454986.5343±0.0094
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 kplr011337833-20160209194854_dvr.pdf kplr011337833-20160209194854_dvr.pdf kplr011337833-20141002224145_dvr.pdf kplr011337833-20130815195353_dvr.pdf kplr011337833-20121029204534_dvr.pdf --- ---
RA [decimal degrees] 284.61621 284.61621 284.61621 284.61621 284.61621 284.61621 284.61621
Dec [decimal degrees] 49.190811 49.190811 49.190811 49.190811 49.190811 49.190811 49.190811
Kepler-band [mag] 14.739 14.739 14.739 14.739 14.739 14.739 14.739
g'-band [mag] 15.174000000000001 15.174000000000001 15.174000000000001 15.174000000000001 15.174000000000001 15.174000000000001 15.174000000000001
r'-band [mag] 14.681000000000001 14.681000000000001 14.681000000000001 14.681000000000001 14.681000000000001 14.681000000000001 14.681000000000001
i'-band [mag] 14.553 14.553 14.553 14.553 14.553 14.553 14.553
z'-band [mag] 14.48 14.48 14.48 14.48 14.48 14.48 14.48
J-band [mag] 13.597000000000001 13.597000000000001 13.597000000000001 13.597000000000001 13.597000000000001 13.597000000000001 13.597000000000001
H-band [mag] 13.184000000000001 13.184000000000001 13.184000000000001 13.184000000000001 13.184000000000001 13.184000000000001 13.184000000000001
K-band [mag] 13.188 13.188 13.188 13.188 13.188 13.188 13.188
Disposition Score --- 0.994 --- --- --- --- ---
Comment --- NO_COMMENT --- --- --- --- ---
Eccentricity --- 0 0 0 0 0 0
Impact Parameter ---
0.003 +0.463-0.003
0.9607 +0.002-0.6742
0.9607 +0.002-0.6742
0.9607 +0.002-0.6742
0.928±0.1 0.93±0.18
Transit Duration [hrs] --- 5.359±0.259 6.987±0.261 6.987±0.261 6.987±0.261 5.8989 5.8989
Transit Depth [ppm] --- 498.9±30.1 581.4±29.5 581.4±29.5 581.4±29.5 559 581
Planet-Star Radius Ratio ---
0.020447 +0.00105-0.000654
0.028605 +0.00012-0.006926
0.028605 +0.00012-0.006926
0.028605 +0.00012-0.006926
0.0266±0.0013 0.0266±0.0013
Fitted Stellar Density [g/cm**3] ---
2.98696 +0.17960-1.38959
0.06316 +2.49107-0.00000
0.06316 +2.49107-0.00000
0.06316 +2.49107-0.00000
--- ---
Planetary Fit Type --- LS+MCMC MCMC MCMC MCMC --- ---
Planetary Radius [Earth radii] ---
2.07 +0.65-0.17
2.9 +1.14-0.25
2.9 +1.14-0.25
2.9 +1.14-0.25
2.7±1.2 2.52
Orbit Semi-Major Axis [au] --- .2716 .2716 .2716 .2716 .274 .267
Inclination [deg] --- 90 87.09 87.09 87.09 88.24 ---
Equilibrium Temperature [K] --- 492 492 492 492 494 460
Insolation Flux [Earth flux] ---
13.86 +12.72-3.56
13.86 +15.70-3.57
13.86 +15.70-3.57
13.86 +15.70-3.57
--- ---
Planet-Star Distance over Star Radius --- 74.62±4.5 20.6±10.3 20.6±10.3 20.6±10.3 29.1±9.3 29.1±9.3
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 -0.0005 ---
Limb Darkening Coeff. 3 --- 0.0 0.0 0.0 0.0 -0.2177 ---
Limb Darkening Coeff. 2 --- 0.2916 0.29350000000000004 0.29350000000000004 0.29350000000000004 0.5527000000000001 ---
Limb Darkening Coeff. 1 --- 0.3447 0.3407 0.3407 0.3407 0.3773 ---
Maximum Single Event Statistic --- 5.4655075 5.4545889999999995 --- --- --- ---
Maximum Multiple Event Statistic --- 16.529358 16.646797 --- --- --- ---
Transit Signal-to-Noise --- 19.6 20.1 20.1 20.1 22.900000000000002 15.8
Number of Transits --- 21 21 --- --- --- ---
TCE Planet Number --- 1 1 1 1 --- ---
Quarters --- 11111110111011101000000000000000 11111110111011101000000000000000 --- --- --- ---
Odd-Even Depth Comparision Statistic --- 0.764 --- --- --- --- ---
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 --- kplr011337833-001-20160209194854_dvs.pdf kplr011337833-001-20141002224145_dvs.pdf kplr011337833-001-20130826182306_dvs.pdf kplr011337833-001-20121115231752_dvs.pdf --- ---
Stellar Effective Temperature [K] ---
6032 +162-180
6032 +149-175
6032 +149-175
6032.00 +149.00-175.00
6034.00±84.00 5774
Stellar Surface Gravity [log10(cm/s**2)] ---
4.508 +0.052-0.208
4.508 +0.039-0.286
4.508 +0.039-0.286
4.508 +0.039-0.286
4.510±0.300 4.54
Stellar Metallicity [dex] --- -0.18±0.3
-0.180 +0.250-0.300
-0.180 +0.250-0.300
-0.180 +0.250-0.300
--- ---
Stellar Radius [Solar radii] ---
0.929 +0.291-0.078
0.929 +0.363-0.08
0.929 +0.363-0.08
0.9290 +0.3630-0.0800
0.9400±0.4000 .87
Stellar Mass [Solar mass] --- 1.014±0.13
1.014 +0.121-0.126
1.014 +0.121-0.126
1.0140 +0.1210-0.1260
1.0450±0.0820 ---
Stellar Parameter Provenance --- q1_q17_dr25_stellar stellar_q1_q16 stellar_q1_q16 stellar_q1_q16 Pinsonneault KIC
FW Offset Significance [percent] --- 0.125 0.001 0.0 --- --- ---
FW Source α(OOT) [hrs] --- 18.974451±0.000025 18.974462±0.000025 18.97444±0.000026 18.974432000±0.000027000 --- ---
FW Source δ(OOT) [deg] --- 49.19076±0.00022 49.19089±0.00024 49.19131±0.00023 49.19082000±0.00025000 --- ---
FW Source Δα(OOT) [sec] --- 1.31±0.88 1.7±0.9 0.93±0.91 0.06800±0.09600 --- ---
FW Source Δδ(OOT) [arcsec] --- -0.19±0.78 0.3±0.87 1.8±0.84 0.00200±0.06000 --- ---
FW Δα(OOT) [sec] --- -0.00066±0.00044 -0.00085±0.00045 -0.0005±0.00049 -3.6e-05±7.4e-05 --- ---
FW Δδ(OOT) [arcsec] --- 0.00011±0.00039 -0.00015±0.00043 -0.00096±0.00046 --- --- ---
PRF ΔαSQ(OOT) [arcsec] --- -0.06±0.33 -0.05±0.37 0.16±0.35 0.0500±0.3500 --- ---
PRF ΔδSQ(OOT) [arcsec] --- -0.2±0.32 -0.07±0.42 -0.35±0.43 0.0200±0.3700 --- ---
PRF ΔθSQ(OOT) [arcsec] --- 0.2±0.33 0.09±0.42 0.39±0.43 0.0600±0.3500 --- ---
PRF ΔαSQ(KIC) [arcsec] --- 0.05±0.32 0.08±0.43 0.24±0.32 0.1500±0.3300 --- ---
PRF ΔδSQ(KIC) [arcsec] --- -0.24±0.3 -0.11±0.37 -0.42±0.47 -0.0400±0.3600 --- ---
PRF ΔθSQ(KIC) [arcsec] --- 0.25±0.3 0.14±0.38 0.48±0.44 0.1500±0.3300 --- ---
Chi-Square --- --- --- --- --- 0.89 0.9
Stellar Age [Gyr] --- --- --- --- --- 0.3±2 ---
Known Objects
1 Confirmed Planets
1 Kepler Objects of Interest (KOIs)
1 Threshold Crossing Events (TCEs)
1 2MASS Point Source Catalog
Data Files
1 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.