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K2-3 Overview

K2-3 0.60 R⦿ 3835.00 K
K2-3 b
0.185 RJup
K2-3 c
0.141 RJup
K2-3 d
0.130 RJup
Architecture
K2-3
K2-3
K2-3 b
K2-3 c
K2-3 d
Other Data
Bibliography 21
Exoplanet Archive Notes 5
Nearby Data 5
Discovery Data
Host Planet Method Year Reference Disposition
K2-3 K2-3 b Transit 2015 Crossfield et al. 2015 Confirmed Planet
K2-3 K2-3 c Transit 2015 Crossfield et al. 2015 Confirmed Planet
K2-3 K2-3 d Transit 2015 Crossfield et al. 2015 Confirmed Planet
K2-3 c K2-3 d
RA
11h29m20.49s
Dec
-01d27m18.49s
Distance
44.07270±0.10815 pc
Parallax
22.6610000±0.0552838 mas
Ecliptic Latitude
-4.37792 deg
Ecliptic Longitude
173.53343 deg
Galactic Latitude
55.25008 deg
Galactic Longitude
264.98752 deg
Total Proper Motion
122.2623054±0.0811597 mas/yr
Proper Motion (RA)
94.0337000±0.0943642 mas/yr
Proper Motion (Dec)
-78.1392000±0.0568367 mas/yr
Photometry
mV
12.168±0.009
mTESS
10.5459000±0.0072768
mJ
9.421±0.027
mH
8.805±0.044
mKs
8.561±0.023
mKep
11.574
mW1
8.443±0.022
mW2
8.424±0.019
mW3
8.322±0.021
mW4
8.251±0.298
mGaia
11.478500±0.000959
mB
13.527±0.040
mg
13.0210000±0.0010063
mi
10.970200±0.000694
mr
11.6746000±0.0007905
mu
15.7198000±0.0060234
mz
12.8219000±0.0104595
Mission
K2 : Observed in Campaign 1
Tools
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Bonomo et al. 2023 Diamond-Lowe et al. 2022 TICv8 Kosiarek et al. 2019 Gaia DR2 Damasso et al. 2018 Crossfield et al. 2016 Sinukoff et al. 2016 Dai et al. 2016 Beichman et al. 2016 Almenara et al. 2015 Montet et al. 2015 Crossfield et al. 2015 Kruse et al. 2019 Kruse et al. 2019 Kruse et al. 2019 ExoFOP-TESS TOI Barros et al. 2016 Vanderburg et al. 2016 Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
3835±70
3844+61-63
 3920.0±157.0 3896±189
4126.69+153.40-103.00
 3835±70 3841±82 3896±189 3896±189 --- ---
3951+33-38
 3896±189 --- --- --- 3920±157 --- 3927
Metallicity
(dex)
-0.01±0.09 [Fe/H]
-0.157+0.075-0.080
[Fe/H] 		--- -0.32±0.13 [Fe/H] --- -0.01±0.09 [Fe/H] --- -0.32±0.13 [Fe/H] -0.32±0.13 [Fe/H] --- ---
-0.30+0.07-0.06
[Fe/H] 		-0.32±0.13 [Fe/H] --- --- --- --- --- ---
Age
(Gyr)
>1 6.90±4.70 --- >1 --- >1 --- --- --- --- --- --- >1 --- --- --- --- --- ---
M✶
(M⦿)
0.62±0.06
0.549+0.029-0.027
 0.5460240±0.0203319 0.601±0.089 --- 0.62±0.06 0.414±0.058 0.60±0.09 0.601±0.089 --- 0.612±0.086 0.53±0.02 0.601±0.089 --- --- --- --- --- ---
R✶
(R⦿)
0.60±0.06
0.546+0.018-0.016
 0.5508560±0.0164328 0.561±0.068 --- 0.60±0.06 0.371±0.050 0.56±0.07 0.561±0.068 0.561±0.068 0.553±0.041 0.52±0.02 0.561±0.068
0.371 +0.057-0.043
0.371 +0.057-0.043
0.371 +0.057-0.043
0.550855994224548±0.016432800000000 --- 0.58
Prot
(days)
40.71+0.87-1.36
 --- --- 40±2 ---
40.4+1.1-1.9
 --- --- 40±10 --- --- --- --- --- --- --- --- --- ---
L✶
(log10(L⦿))
---
-1.23+0.01-0.01
-1.19008+0.08666-0.10837
 --- --- -1.15±0.09 --- --- --- --- --- --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
---
4.78+0.37-0.40
 4.6053527±0.2409732 5.05±0.86 --- 4.95±0.86 --- --- --- --- 5.04±0.86 --- --- --- --- --- --- --- ---
log g
(log10(cm/s2))
---
4.704+0.023-0.026
 4.6932000±0.0097399 4.734±0.062 --- 4.66±0.05 4.906±0.060 4.72±0.13 4.72±0.13 --- 4.734±0.062 --- --- --- --- --- 4.69320000±0.00973992 --- ---
Sp. T
--- M V --- M0.0±0.5 V --- --- --- M0 V --- M0 V --- --- M0.0 V --- --- --- --- --- ---
γ
(km/s)
--- --- --- --- 30.76306478373252±0.98012942899704 --- --- --- --- --- 30.48024±0.00063 --- 32.6±1 --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Atmospheric Spectroscopy
Source Diamond-Lowe et al. 2022 Bonomo et al. 2023 Kosiarek et al. 2019 Damasso et al. 2018 Crossfield et al. 2016 Sinukoff et al. 2016 Dai et al. 2016 Beichman et al. 2016 Almenara et al. 2015 Montet et al. 2015 Crossfield et al. 2015 Kruse et al. 2019 ExoFOP-TESS TOI Barros et al. 2016 Vanderburg et al. 2016 Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
29.44+0.74-0.84
 ---
30.02+0.25-0.31
 --- ---
25.60+4.40-6.67
 --- ---
30.74+0.53-2.50
 30.72±0.75
29.1545 +1.8052-3.6443
27.3 +6.6-2.9
--- --- ---
b
0.31+0.13-0.18
 ---
0.22+0.05-0.06
 --- ---
0.54+0.23-0.35
 --- ---
0.21+0.21-0.12
 ---
0.37 +0.22-0.23
--- --- --- 0.42
ω
(deg)
188+32-34
 --- 0 --- --- --- --- --- 180±70 --- --- --- --- --- ---
Mp
(M⨁)
5.11+0.65-0.64
6.47+1.00-0.99
6.48+0.99-0.93
 6.6±1.1 --- ---
8.10+2.00-1.90
 --- 8.40±2.10 --- --- --- --- --- ---
Mp
(MJup)
0.0161+0.0020-0.0020
0.0204+0.0031-0.0031
0.0204+0.0031-0.0029
 0.021±0.003 --- ---
0.0255+0.0063-0.0060
 --- 0.0264±0.0066 --- --- --- --- --- ---
e
0.107+0.057-0.059
 <0.094 0 --- --- --- 0 --- 0.060±0.060 --- --- --- --- --- ---
i
(deg)
89.40+0.34-0.22
89.588+0.120-0.100
89.588+0.116-0.100
 --- ---
88.80+0.84-1.12
 --- ---
89.59+0.24-0.40
 ---
89.28 +0.46-0.60
--- --- --- ---
P
(days)
10.0546535+0.0000088-0.0000091
 10.0546260±0.0000000
10.054626+0.000010-0.000011
 10.05454±0.00003 10.05443±0.00026 10.05449±0.00026
10.05403+0.00260-0.00250
 10.054544±0.000029 10.05429±0.00022 10.05448±0.00033
10.05403 +0.00026-0.00025
10.05467±0.00011 10.0539438720782±0.0019294797000 10.05176778 10.054374
ρ
(g/cm3)
3.11+0.49-0.46
3.12+1.30-0.90
3.70+1.67-1.08
3.0+1.3-0.9
 --- --- 4.5±2.0 ---
4.32+2.00-0.76
 --- --- --- --- --- ---
Rp/R✶
0.03490+0.00041-0.00036
 --- 0.0344±0.0004 --- 0.0351±0.0015
0.03534+0.00286-0.00153
 --- 0.0350±0.0007 0.03477±0.00064 ---
0.03483 +0.00123-0.00070
0.0358 +0.0012-0.0031
--- --- 0.03496
K
(m/s)
2.27±0.28 2.66±0.37
2.72+0.29-0.30
 2.7±0.4 --- ---
3.36+0.75-0.74
 --- 3.60±0.87 --- --- --- --- --- ---
TC
(days)
2457165.32947±0.00025 2456813.41843±0.00039 2456813.41843±0.00041 2456813.42022±0.00095 2456813.4178±0.0012 2456813.4173±0.0011 2456813.4189±0.0011 2456813.42024±0.00094 2456813.41817±0.00082 2456813.4177±0.0015 2456813.4189±0.0011 2456813.41639±0.00043 2459528.16829200±0.00258095 2456823.477669 2456813.418
Teq
(K)
501.3+5.1-5.2
 513±29 --- --- --- 463±39 --- --- --- 504±9 --- --- 373.17957222103 --- ---
Rp
(R⨁)
2.078+0.076-0.067
 2.25±0.23 --- 2.29±0.23 1.44±0.20 2.18±0.30
2.14+0.27-0.26
 2.08±0.25
2.078+0.180-0.093
 1.98±0.10
2.14 +0.27-0.26
1.45 +0.23-0.21
2.2586220404703±1.6741600000000 --- 2.4
Rp
(RJup)
0.1854+0.0068-0.0060
 0.201±0.021 --- 0.204±0.021 0.128±0.018 0.194±0.027
0.191+0.024-0.023
 0.186±0.022
0.1854+0.0161-0.0083
 0.177±0.009 0.19±0.02
0.129 +0.021-0.019
 0.20150110888052±0.14935880833482 --- 0.214
a
(au)
0.0747+0.0013-0.0012
 0.0778±0.0026 ---
0.0777+0.0024-0.0026
 0.0679±0.0032 0.0769±0.0039 --- --- 0.0775±0.0039 0.0740±0.0009
0.0769 +0.0036-0.0040
--- --- --- ---
S
(S⨁)
10.5±1.0
11.6+2.8-2.4
 --- --- 5.8±1.7 10.9±3.7 --- --- --- ---
11.0 +4.1-3.1
--- 4.58344951208881 --- ---
T14
(hours)
--- --- --- --- 2.520±0.059
2.726+0.252-0.111
 --- --- 2.563±0.039 ---
2.553 +0.047-0.044
2.62080+0.04560-0.06720
 2.06869244188301±0.55755280000000
3.05200+0.11800-0.11800
 2.61000
δ
(%)
--- --- --- --- --- --- --- --- --- --- --- 0.1416±0.0016 0.16773066773643±0.01465329700000 0.145±0.004 0.145
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Atmospheric Spectroscopy
Source Diamond-Lowe et al. 2022 Bonomo et al. 2023 Kosiarek et al. 2019 Damasso et al. 2018 Crossfield et al. 2016 Sinukoff et al. 2016 Dai et al. 2016 Beichman et al. 2016 Almenara et al. 2015 Montet et al. 2015 Crossfield et al. 2015 Kruse et al. 2019 Vanderburg et al. 2016 Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
53.5+1.3-1.5
 ---
54.57+0.46-0.56
 --- ---
42.2+12.0-14.4
 --- ---
55.90+0.97-4.60
 55.85±1.36
51.8135 +4.0525-9.0784
39±15 ---
b
0.14+0.13-0.10
 ---
0.090+0.080-0.060
 --- ---
0.650+0.200-0.400
 --- ---
0.31+0.14-0.21
 ---
0.45 +0.23-0.28
--- 0.59
ω
(deg)
-180+100-110
 --- 0 --- --- --- --- --- 89.0±110.0 --- --- --- ---
Mp
(M⨁)
2.68±0.85 3.3±1.2
2.14+1.08-1.04
3.1+1.3-1.2
 --- --- <4.2 ---
2.1+2.1-1.3
 --- --- --- ---
Mp
(MJup)
0.00843±0.00267 0.010±0.004
0.00673+0.00340-0.00327
0.0098+0.0041-0.0038
 --- --- <0.013 ---
0.0066+0.0066-0.0041
 --- --- --- ---
e
0.0480+0.0730-0.0350
 <0.095 0 --- --- --- 0 --- 0.04±0.04 --- --- --- ---
i
(deg)
89.84+0.11-0.14
89.905+0.066-0.088
89.905+0.066-0.088
 --- ---
89.12+0.62-0.86
 --- --- 89.70±0.20 ---
89.55 +0.29-0.44
--- ---
P
(days)
24.646729+0.000044-0.000042
 24.646582±0.000039
24.646582+0.000041-0.000040
 24.64638±0.00017 24.6435±0.0012 24.64354±0.00117 24.6454±0.0013 24.64638±0.00018 24.6491±0.0033 24.64745±0.00152 24.6454±0.0013
24.64671 +0.00054-0.00053
24.645013
ρ
(g/cm3)
3.7±1.2
3.7+2.1-1.5
2.98+1.96-1.50
3.1+1.9-1.3
 --- --- <4.5 ---
1.82+3.00-0.96
 --- --- --- ---
Rp/R✶
0.02658±0.00032 --- 0.0259±0.0006 --- 0.0288±0.0016
0.03007+0.00304-0.00203
 --- 0.0270±0.0006 0.02770±0.00070 ---
0.02786 +0.00143-0.00083
0.0291±0.0027 0.02858
K
(m/s)
0.880±0.280 1.01±0.35 0.67±0.32 0.950±0.370 --- --- <1.3 ---
0.610+0.660-0.370
 --- --- --- ---
TC
(days)
2457329.85688+0.00055-0.00056
 2456812.28013±0.00095
2456812.28018+0.00098-0.00100
 2456812.2777±0.0026 2456812.2811±0.0024 2456812.2812±0.0022
2456812.2786+0.0026-0.0027
 2456812.2777±0.0026 2456812.2784±0.0018 2456812.2759±0.0030
2456812.2786 +0.0037-0.0043
2456812.27612±0.00099 2456812.280
Teq
(K)
371.8+3.8-3.9
 381±21 --- --- --- 344±29 --- --- --- 374±7 --- --- ---
Rp
(R⨁)
1.582+0.057-0.051
 1.69±0.17 --- 1.77±0.18 1.18±0.17 1.85±0.27
1.72+0.23-0.22
 1.69±0.21
1.644+0.160-0.065
 1.56±0.10
1.72 +0.23-0.22
1.18 +0.21-0.18
1.9
Rp
(RJup)
0.1411+0.0051-0.0045
 0.151±0.015 --- 0.158±0.016 0.105±0.015 0.165±0.024
0.153+0.021-0.020
 0.151±0.019
0.1467+0.0143-0.0058
 0.139±0.009 0.15±0.02
0.105 +0.019-0.016
 0.170
a
(au)
0.1357+0.0023-0.0022
 0.1414±0.0047 ---
0.1413+0.0044-0.0047
 0.1235±0.0058 0.1399±0.0070 --- --- 0.1405±0.0067 0.1345±0.0016
0.1399 +0.0066-0.0073
--- ---
S
(S⨁)
3.17±0.30
3.51+0.85-0.73
 --- --- 1.77±0.53 3.3±1.1 --- --- --- ---
3.32 +1.25-0.95
--- ---
T14
(hours)
--- --- --- --- 3.38±0.12
3.633+0.491-0.191
 --- --- --- ---
3.428 +0.106-0.097
3.60000+0.12000-0.24000
 3.61000
δ
(%)
--- --- --- --- --- --- --- --- --- --- ---
0.0822 +0.0015-0.0016
0.0916
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Atmospheric Spectroscopy
Source Diamond-Lowe et al. 2022 Bonomo et al. 2023 Kosiarek et al. 2019 Damasso et al. 2018 Fukui et al. 2016 Crossfield et al. 2016 Sinukoff et al. 2016 Dai et al. 2016 Beichman et al. 2016 Almenara et al. 2015 Crossfield et al. 2015 Kruse et al. 2019 Vanderburg et al. 2016 Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
79.4+2.0-2.3
 ---
80.98+0.68-0.84
 ---
78.7+4.0-5.0
 ---
62.1+19.0-23.0
 --- ---
82.9+1.4-6.9
78.7402 +6.7299-12.9507
61 +21-16
---
b
0.24±0.16 ---
0.30+0.04-0.05
 ---
0.15+0.19-0.14
 ---
0.670+0.200-0.400
 --- ---
0.359+0.089-0.270
0.37 +0.22-0.23
--- 0.46
ω
(deg)
0.0+140.0-150.0
 --- 0 --- --- --- --- --- --- 351±66 --- --- ---
Mp
(M⨁)
<2.2 <1.6 <2.80 <1.8 --- --- --- 7.50±3.00 --- 11.1±3.5 --- --- ---
Mp
(MJup)
<0.0069 <0.0050 <0.00881 <0.0057 --- --- --- 0.0236±0.0094 --- 0.0349±0.0110 --- --- ---
e
0.0910+0.1200-0.0640
 <0.097 0 --- --- --- --- 0 --- 0.045±0.045 --- --- ---
i
(deg)
89.82+0.12-0.11
89.788+0.033-0.029
89.788+0.033-0.029
 --- --- ---
89.38+0.43-0.64
 --- --- 89.79±0.15
89.68 +0.21-0.26
--- ---
P
(days)
44.55603+0.00013-0.00012
 44.556456±0.000097
44.55646+0.00011-0.00010
 44.55764±0.00042 44.55612±0.00021 44.5609±0.0052 44.55983±0.00590
44.5631+0.0063-0.0055
 44.55765±0.00043 44.5705±0.0059
44.5631 +0.0063-0.0055
44.5574±0.0023 44.561150
ρ
(g/cm3)
--- <2.1 <5.62 <2.4 --- --- --- 11.7±6.7 --- 17.5±6.3 --- --- ---
Rp/R✶
0.02449+0.00041-0.00040
 --- 0.0244±0.0008 ---
0.02484+0.00056-0.00054
 0.0235±0.0015
0.02453+0.00267-0.00182
 --- 0.0252±0.0007 0.02495±0.00074
0.0248 +0.0014-0.0010
0.0273 +0.0029-0.0048
0.02497
K
(m/s)
--- <0.39 <0.71 <0.43 --- --- --- 1.91±0.74 --- 2.84±0.90 --- --- ---
TC
(days)
2457271.78796±0.00076 2456826.22347±0.00053 2456826.22346±0.00056 2456826.2248±0.0037 2457450.0137±0.0043 2456826.2285±0.0034 2456826.2288±0.0034
2456826.2232+0.0037-0.0043
 2456826.2248±0.0038 2456826.2272±0.0027 2456826.2232±0.0011 2456826.2286±0.0016 2456826.227
S
(S⨁)
1.44±0.14
1.60+0.38-0.33
 --- --- --- 0.800±0.240 1.5±0.5 --- 1.5±0.5 ---
1.51 +0.57-0.43
--- ---
Rp
(R⨁)
1.458+0.056-0.051
 1.62±0.18 --- 1.65±0.17 --- 0.96±0.14 1.51±0.23
1.52+0.21-0.20
 1.61±0.20 1.53±0.11
1.52 +0.21-0.20
1.11 +0.21-0.23
1.7
Rp
(RJup)
0.1301+0.0050-0.0045
 0.145±0.016 --- 0.147±0.015 --- 0.086±0.012 0.135±0.021
0.136+0.019-0.018
 0.144±0.018 0.136±0.010 0.14±0.02
0.0990 +0.019-0.021
 0.152
a
(au)
0.2014+0.0034-0.0033
 0.2097±0.0070 ---
0.2097+0.0065-0.0070
 --- 0.1833±0.0086 0.2076±0.0104 --- --- 0.2086±0.0100
0.2076 +0.0098-0.0108
--- ---
T14
(hours)
--- --- --- ---
4.17+0.09-0.07
 4.04±0.19
4.325+0.552-0.256
 --- --- 4.07±0.12
3.98 +0.17-0.15
4.51200+0.16800-0.24000
 4.04000
Teq
(K)
305.2+3.1-3.2
 312±17 --- --- --- --- 282±24 --- 300 --- --- --- ---
δ
(%)
--- --- --- --- --- --- --- --- --- --- --- 0.0782±0.002 0.0731
Print
Known Objects
3 Confirmed Planets
1 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 K2 Time Series
3 Associated Literature Data
System
Star
Confirmed
Candidate
False Positive Planet
Controversial
False Positive
Aliases
Data Access
Transit Prediction Service
Time Series
Kepler | K2
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