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Kepler-1821 Overview

Kepler-1821 0.59 R⦿ 5607.00 K
Kepler-1821 b
0.231 RJup
Architecture
Kepler-1821
Kepler-1821
Kepler-1821 b
Other Data
Bibliography 14
Nearby Data 7
Discovery Data
Host Planet Method Year Reference Disposition
Kepler-1821 Kepler-1821 b Transit 2021 Valizadegan et al. 2022 Confirmed Planet
RA
19h38m06.11s
Dec
+49d52m20.94s
Distance
799.6990±12.0365 pc
Parallax
1.2218000±0.0186766 mas
Ecliptic Latitude
69.18804 deg
Ecliptic Longitude
318.84705 deg
Galactic Latitude
13.45418 deg
Galactic Longitude
82.46656 deg
Total Proper Motion
4.4297019±0.0366238 mas/yr
Proper Motion (RA)
1.5963000±0.0353519 mas/yr
Proper Motion (Dec)
4.1320800±0.0368099 mas/yr
Photometry
mV
14.795±0.103
mTESS
14.1483±0.0065
mJ
13.469±0.025
mH
13.182±0.028
mKs
13.058±0.036
mKep
14.640
mW1
13.020±0.023
mW2
13.051±0.025
mW3
12.491±0.302
mW4
9.089
mGaia
14.636900±0.000314
mB
15.506±0.122
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 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)
5524.03±171.48 5607 5607 ---
5475 +73-82
5815 +156-161
5815 +156-161
5815.00 +156.00-161.00
5806.00±81.00 5607
Metallicity
(dex)
0.104±0.163 [M/H] --- -0.074 [Fe/H] --- 0.14±0.15 [Fe/H]
-0.120 +0.240-0.280
[Fe/H]
-0.120 +0.240-0.280
[Fe/H]
-0.120 +0.240-0.280
[Fe/H] 		--- ---
R✶
(R⦿)
0.946827 0.83 0.586 ---
0.884 +0.112-0.042
0.877 +0.307-0.066
0.877 +0.307-0.066
0.8770 +0.3070-0.0660
0.8700±0.2700 .83
log g
(log10(cm/s2))
4.4723 4.57 4.89 ---
4.521 +0.028-0.105
4.54 +0.028-0.257
4.54 +0.028-0.257
4.540 +0.028-0.257
4.550±0.300 4.57
M✶
(M⦿)
0.97 0.93 --- ---
0.946 +0.044-0.058
0.973 +0.092-0.111
0.973 +0.092-0.111
0.9730 +0.0920-0.1110
0.9810±0.0530 ---
L✶
(log10(L⦿))
-0.1237401 --- --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
1.6111072 --- --- ---
19.06113 +3.88319-7.10318
21.01101 +4.37920-7.34789
21.01101 +4.37920-7.34789
21.01101 +4.37920-7.34789
--- ---
Age
(Gyr)
--- --- --- --- --- --- --- --- 0.4±3.2 ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Transit Prediction Service
Kepler Names
KOI
Transit
Source Valizadegan et al. 2022 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)
16.45809937 16.45818035±0.00000414 16.4581861±5.977e-05 16.4581861±5.977e-05 16.45819349±5.59e-05 16.45819349±5.59e-05 16.45819349±5.59e-05 16.4588±0.00016
Rp
(R⨁)
2.592481152 --- ---
1.82 +0.23-0.09
1.98 +0.69-0.15
1.98 +0.69-0.15
1.98 +0.69-0.15
2±1.1
Rp
(RJup)
0.2312860751 --- --- --- --- --- --- ---
a/R✶
--- --- --- 64.9±13.2 67±14 67±14 67±14 52±26
Teq
(K)
--- --- --- 644 678 678 678 674
b
--- --- ---
0.108 +0.349-0.108
0.3157 +0.1348-0.3156
0.3157 +0.1348-0.3156
0.3157 +0.1348-0.3156
0.63±0.82
S
(S⨁)
--- --- ---
40.61 +13.74-5.93
49.97 +51.28-11.78
49.97 +51.28-11.78
49.97 +51.28-11.78
---
e
--- --- --- 0 0 0 0 0
i
(deg)
--- --- --- 89.9 89.95 89.95 89.95 89.38
Rp/R✶
--- --- ---
0.018826 +0.000948-0.000612
0.020687 +0.000622-0.000849
0.020687 +0.000622-0.000849
0.020687 +0.000622-0.000849
0.0213±0.0088
a
(au)
--- --- --- .1244 .1255 .1255 .1255 .126
δ
(%)
--- 0.0512 --- 0.04358±0.00234 0.05049±0.00255 0.05049±0.00255 0.05049±0.00255 0.04970
T14
(hours)
--- 2.1597 --- 1.9637±0.0872 1.8214±0.079 1.8214±0.079 1.8214±0.079 1.9627
TC
(days)
--- 2454967.020195±0.003537 2454967.02±0.00301 2454967.02±0.00301 2454967.019±0.0026 2454967.019±0.0026 2454967.019±0.0026 2454967.0082±0.0036
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 11718144 11718144 11718144 11718144 11718144 11718144 11718144
KOI Name K02310.01 K02310.01 K02310.01 K02310.01 K02310.01 K02310.01 K02310.01
Kepler Name Kepler-1821 b Kepler-1821 b Kepler-1821 b Kepler-1821 b Kepler-1821 b Kepler-1821 b Kepler-1821 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] 16.4581861±5.977e-05 16.4581861±5.977e-05 16.45819349±5.59e-05 16.45819349±5.59e-05 16.45819349±5.59e-05 16.4588±0.00016 16.4588±0.00016
Transit Epoch [BKJD] 134.01969±0.00301 134.01969±0.00301 134.01856±0.0026 134.01856±0.0026 134.01856±0.0026 134.0082±0.0036 134.0082±0.0036
Transit Epoch [BJD] 2454967.02±0.00301 2454967.02±0.00301 2454967.019±0.0026 2454967.019±0.0026 2454967.019±0.0026 2454967.0082±0.0036 2454967.0082±0.0036
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 kplr011718144-20160209194854_dvr.pdf kplr011718144-20160209194854_dvr.pdf kplr011718144-20141002224145_dvr.pdf kplr011718144-20130815195353_dvr.pdf kplr011718144-20121029204534_dvr.pdf --- ---
RA [decimal degrees] 294.52545 294.52545 294.52545 294.52545 294.52545 294.52545 294.52545
Dec [decimal degrees] 49.872471 49.872471 49.872471 49.872471 49.872471 49.872471 49.872471
Kepler-band [mag] 14.64 14.64 14.64 14.64 14.64 14.64 14.64
g'-band [mag] 15.116000000000001 15.116000000000001 15.116000000000001 15.116000000000001 15.116000000000001 15.116000000000001 15.116000000000001
r'-band [mag] 14.578000000000001 14.578000000000001 14.578000000000001 14.578000000000001 14.578000000000001 14.578000000000001 14.578000000000001
i'-band [mag] 14.437000000000001 14.437000000000001 14.437000000000001 14.437000000000001 14.437000000000001 14.437000000000001 14.437000000000001
z'-band [mag] 14.376000000000001 14.376000000000001 14.376000000000001 14.376000000000001 14.376000000000001 14.376000000000001 14.376000000000001
J-band [mag] 13.469000000000001 13.469000000000001 13.469000000000001 13.469000000000001 13.469000000000001 13.469000000000001 13.469000000000001
H-band [mag] 13.182 13.182 13.182 13.182 13.182 13.182 13.182
K-band [mag] 13.058 13.058 13.058 13.058 13.058 13.058 13.058
Disposition Score --- 1.0 --- --- --- --- ---
Comment --- NO_COMMENT --- --- --- --- ---
Eccentricity --- 0 0 0 0 0 0
Impact Parameter ---
0.108 +0.349-0.108
0.3157 +0.1348-0.3156
0.3157 +0.1348-0.3156
0.3157 +0.1348-0.3156
0.63±0.82 0.63±0.68
Transit Duration [hrs] --- 1.9637±0.0872 1.8214±0.079 1.8214±0.079 1.8214±0.079 1.9627 1.9627
Transit Depth [ppm] --- 435.8±23.4 504.9±25.5 504.9±25.5 504.9±25.5 497 482
Planet-Star Radius Ratio ---
0.018826 +0.000948-0.000612
0.020687 +0.000622-0.000849
0.020687 +0.000622-0.000849
0.020687 +0.000622-0.000849
0.0213±0.0088 0.0213±0.0088
Fitted Stellar Density [g/cm**3] ---
19.06113 +3.88319-7.10318
21.01101 +4.37920-7.34789
21.01101 +4.37920-7.34789
21.01101 +4.37920-7.34789
--- ---
Planetary Fit Type --- LS+MCMC MCMC MCMC MCMC --- ---
Planetary Radius [Earth radii] ---
1.82 +0.23-0.09
1.98 +0.69-0.15
1.98 +0.69-0.15
1.98 +0.69-0.15
2±1.1 1.93
Orbit Semi-Major Axis [au] --- .1244 .1255 .1255 .1255 .126 .124
Inclination [deg] --- 89.9 89.95 89.95 89.95 89.38 ---
Equilibrium Temperature [K] --- 644 678 678 678 674 639
Insolation Flux [Earth flux] ---
40.61 +13.74-5.93
49.97 +51.28-11.78
49.97 +51.28-11.78
49.97 +51.28-11.78
--- ---
Planet-Star Distance over Star Radius --- 64.9±13.2 67±14 67±14 67±14 52±26 52±26
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 --- 0.2291 0.2775 0.2775 0.2775 0.2876 ---
Limb Darkening Coeff. 1 --- 0.46030000000000004 0.3755 0.3755 0.3755 0.434 ---
Maximum Single Event Statistic --- 4.489195 11.101251999999999 --- --- --- ---
Maximum Multiple Event Statistic --- 20.33015 20.641253 --- --- --- ---
Transit Signal-to-Noise --- 22.400000000000002 22.7 22.7 22.7 25.900000000000002 18.400000000000002
Number of Transits --- 76 77 --- --- --- ---
TCE Planet Number --- 1 1 1 1 --- ---
Quarters --- 11111111111111111000000000000000 11111111111111111000000000000000 --- --- --- ---
Odd-Even Depth Comparision Statistic --- 0.9108 --- --- --- --- ---
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 --- kplr011718144-001-20160209194854_dvs.pdf kplr011718144-001-20141002224145_dvs.pdf kplr011718144-001-20130826182306_dvs.pdf kplr011718144-001-20121115231752_dvs.pdf --- ---
Stellar Effective Temperature [K] ---
5475 +73-82
5815 +156-161
5815 +156-161
5815.00 +156.00-161.00
5806.00±81.00 5607
Stellar Surface Gravity [log10(cm/s**2)] ---
4.521 +0.028-0.105
4.54 +0.028-0.257
4.54 +0.028-0.257
4.540 +0.028-0.257
4.550±0.300 4.57
Stellar Metallicity [dex] --- 0.14±0.15
-0.120 +0.240-0.280
-0.120 +0.240-0.280
-0.120 +0.240-0.280
--- ---
Stellar Radius [Solar radii] ---
0.884 +0.112-0.042
0.877 +0.307-0.066
0.877 +0.307-0.066
0.8770 +0.3070-0.0660
0.8700±0.2700 .83
Stellar Mass [Solar mass] ---
0.946 +0.044-0.058
0.973 +0.092-0.111
0.973 +0.092-0.111
0.9730 +0.0920-0.1110
0.9810±0.0530 ---
Stellar Parameter Provenance --- q1_q17_dr25_stellar stellar_q1_q16 stellar_q1_q16 stellar_q1_q16 Pinsonneault KIC
FW Offset Significance [percent] --- 0.10200000000000001 0.017 0.0 0.07100000000000001 --- ---
FW Source α(OOT) [hrs] --- 19.635016±0.000019 19.635025±0.000017 19.63502±0.000016 19.635032000±0.000020000 --- ---
FW Source δ(OOT) [deg] --- 49.87254±0.00021 49.87235±0.00019 49.87222±0.00018 49.87227000±0.00022000 --- ---
FW Source Δα(OOT) [sec] --- -0.52±0.66 -0.21±0.58 -0.39±0.55 -0.05600±0.07100 --- ---
FW Source Δδ(OOT) [arcsec] --- 0.25±0.74 -0.44±0.68 -0.89±0.63 -0.05000±0.05200 --- ---
FW Δα(OOT) [sec] --- 0.00053±0.00031 0.00037±0.00027 0.00049±0.00028 2.9e-05±3.7e-05 --- ---
FW Δδ(OOT) [arcsec] --- -0.00011±0.00035 0.00022±0.00031 0.00047±0.00033 2.6e-05±2.7e-05 --- ---
PRF ΔαSQ(OOT) [arcsec] --- -0.05±0.4 -0.11±0.37 -0.19±0.32 -0.1800±0.2700 --- ---
PRF ΔδSQ(OOT) [arcsec] --- 0.38±0.31 0.38±0.46 0.37±0.66 0.2200±0.3400 --- ---
PRF ΔθSQ(OOT) [arcsec] --- 0.38±0.33 0.4±0.54 0.42±0.69 0.2800±0.3100 --- ---
PRF ΔαSQ(KIC) [arcsec] --- -0.03±0.38 -0.08±0.35 -0.16±0.31 -0.1500±0.2700 --- ---
PRF ΔδSQ(KIC) [arcsec] --- 0.46±0.28 0.46±0.46 0.46±0.59 0.3000±0.3300 --- ---
PRF ΔθSQ(KIC) [arcsec] --- 0.46±0.29 0.47±0.52 0.49±0.63 0.3400±0.3200 --- ---
Chi-Square --- --- --- --- --- 1.19 1.16
Stellar Age [Gyr] --- --- --- --- --- 0.4±3.2 ---
Known Objects
1 Confirmed Planets
1 Kepler Objects of Interest (KOIs)
1 Threshold Crossing Events (TCEs)
3 2MASS Point Source Catalog
Data Files
1 Kepler Time Series
1 SuperWASP Time Series
1 Associated Literature Data
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