GJ 1214 Overview

GJ 1214 0.20 R⦿ 3026.00 K
GJ 1214 b
0.245 RJup
Architecture
GJ 1214
GJ 1214
GJ 1214 b
Discovery Data
Host Planet Method Year Reference Disposition
GJ 1214 GJ 1214 b Transit 2009 Charbonneau et al. 2009 Confirmed Planet
GJ 1214 b
RA
17h15m19.54s
Dec
+04d57m38.45s
Distance
14.6427±0.0372 pc
Parallax
68.265300±0.172281 mas
Ecliptic Latitude
27.91224 deg
Ecliptic Longitude
257.38248 deg
Galactic Latitude
23.60704 deg
Galactic Longitude
26.16217 deg
Total Proper Motion
948.0511007±0.3416955 mas/yr
Proper Motion (RA)
580.447000±0.479398 mas/yr
Proper Motion (Dec)
-749.588000±0.221265 mas/yr
Photometry
mV
15.1±0.2
mTESS
11.5810000±0.0074579
mJ
9.750±0.024
mH
9.094±0.024
mKs
8.782±0.020
mW1
8.598±0.023
mW2
8.442±0.021
mW3
8.254±0.024
mW4
8.084±0.236
mIc
---
mGaia
13.008900±0.001061
Source Cloutier et al. 2021 TICv8 Gaia DR2 Gillon et al. 2014 Narita et al. 2013 Harpsøe et al. 2013 Berta et al. 2012 Bean et al. 2011 Croll et al. 2011 Berta et al. 2011 Carter et al. 2011 Carter et al. 2011 Kundurthy et al. 2011 Sada et al. 2010 Charbonneau et al. 2009 Hawley et al. 1996
Teff
(K)
3250±100 3074.0±157.0
3438.0525+437.5080-152.0520
3250±100 3000 3026±150 3026 3026 3000 --- --- 3170±23
2949+27-32
--- 3026±130 ---
Metallicity
(dex)
0.29±0.12 [Fe/H] --- --- 0.1±0.1 [Fe/H] --- 0.39±0.15 [Fe/H] 0 [M/H] 0 [M/H] --- --- --- 0 [Fe/H] --- --- --- ---
R
(R⦿)
0.215±0.008 0.2145720±0.0064456 --- 0.2213±0.0043 --- 0.216±0.012
0.201+0.004-0.003
0.21 ---
0.2064 +0.0086-0.0096
0.210±0.007 0.179±0.006
0.210+0.005-0.004
0.201+0.010-0.005
0.2110±0.0097 ---
log g
(log10(cm/s2))
5.026±0.040 5.038810±0.021587 --- 4.994±0.012 5.0 4.944±0.013 5 5.0 5.0 --- 4.99±0.04 5.12±0.01
4.94+0.22-0.26
--- 4.991±0.029 ---
M
(M⦿)
0.178±0.010 0.1836070±0.0200799 --- 0.176±0.009 --- 0.150±0.011 --- --- --- 0.157±0.019 0.157±0.012 0.156±0.006
0.153+0.010-0.009
--- 0.157±0.019 ---
Sp. T
M4 V --- --- --- --- --- --- --- --- --- --- --- --- --- --- M4.5
ρ
(g/cm3)
25.4+3.5-3.0
26.2020447±0.5127087 --- 22.89±0.65 --- --- --- --- --- 25.2±1.2 24.1±1.7 38.4±2.1
23.29+0.92-1.55
--- 23.9±2.1 ---
v sin i
(km/s)
--- --- --- --- --- --- --- --- --- --- --- 2.0 --- --- <2.0 ---
L
(log10(L⦿))
-2.3+0.1-0.1
-2.4313+0.1024-0.1343
---
-2.31+0.06-0.06
--- --- --- --- --- --- --- ---
-2.6+0.1-0.1
---
-2.484 +0.056-0.064
---
γ
(km/s)
--- --- --- --- --- --- --- --- --- --- --- --- --- --- -21.1±1.0 ---
Age
(Gyr)
--- --- --- --- --- --- --- --- --- >3 --- --- --- --- --- ---
Prot
(days)
124.7+5.0-4.8
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Status
Confirmed Planet
Detected By
Orbital Brightness Modulation, Radial Velocity, Transit
Source Cloutier et al. 2021 Kokori et al. 2023 Kokori et al. 2022 Cáceres et al. 2014 Gillon et al. 2014 Kreidberg et al. 2014 Narita et al. 2013 Harpsøe et al. 2013 Berta et al. 2012 de Mooij et al. 2012 Bean et al. 2011 Berta et al. 2011 Carter et al. 2011 Kundurthy et al. 2011 Carter et al. 2011 Sada et al. 2010 Charbonneau et al. 2009
a/R
14.85±0.16 --- --- 14.9749 --- 15.23 14.9749
14.0+0.8-0.7
15.31+0.21-0.29
14.9749 14.9749 14.93±0.24
14.71 +0.37-0.33
14.54+0.19-0.33
14.71 +0.37-0.33
--- 14.66±0.41
Mp
(M)
8.17±0.43 --- --- --- --- --- --- 6.26±0.86 --- --- --- --- 6.45±0.91 6.37±0.87 6.43±0.86 --- 6.55±0.98
Mp
(MJup)
0.0257±0.0014 --- --- --- --- --- --- 0.0197±0.0027 --- --- --- --- 0.020±0.003 0.0200±0.0027 0.020±0.003 --- 0.021±0.003
i
(deg)
88.7±0.1 --- --- 88.94 --- 89.1 88.94 88.17±0.54
89.3+0.4-0.3
--- 88.94
88.80 +0.25-0.20
90 +0.0-1.5
88.39+0.14-0.21
90 +0.0-1.5
---
88.62 +0.35-0.28
P
(days)
1.58040433±0.00000013 1.580404571±0.000000042 1.58040454±0.00000004 1.580404938±0.000000090 1.58040417±0.00000022 1.58040464894 1.58040481 1.58040456±0.00000016 --- 1.580408346 1.58040481±0.00000012 1.58040490±0.00000033 1.58040482±0.00000024 1.58040487±0.00000067 1.58040482±0.00000024 1.5804043±0.0000005 1.5803925±0.0000117
ρ
(g/cm3)
2.20+0.17-0.16
--- --- --- --- --- --- 1.49±0.33 --- --- --- --- 1.89±0.33 1.68±0.23 3.03±0.50 --- 1.870±0.400
Rp
(R)
2.742+0.050-0.053
--- --- --- --- --- --- 2.85±0.20 --- --- --- 2.64±0.13 2.65±0.09
2.74+0.06-0.05
2.27±0.08
2.61+0.30-0.11
2.678±0.13
Rp
(RJup)
0.2446+0.0045-0.0047
--- --- --- --- --- --- 0.254±0.018 --- --- --- 0.24±0.01 0.236±0.008
0.244+0.005-0.004
0.203±0.007
0.233+0.027-0.010
0.239±0.012
Rp/R
--- --- --- --- --- --- --- --- 0.1160±0.0005 --- --- 0.1171±0.0010 0.1161±0.0048
0.1195+0.0008-0.0004
0.1161±0.0048 --- 0.1162±0.00067
K
(m/s)
14.36±0.53 --- --- --- --- --- --- 12.2±1.6 --- --- --- --- 12.2±1.6 --- 12.2±1.6 --- 12.2±1.6
T14
(hours)
--- --- --- --- --- --- --- --- 0.8688±0.0029 --- --- 0.869±0.004
0.8788 +0.0082-0.0058
---
0.8788 +0.0082-0.0058
--- ---
TC
(days)
2455701.413328+0.000066-0.000059
2455886.320526±0.000023 2455881.579310±0.000022 2454934.916934±0.000027 2454980.74900±0.00010 2454966.52488 2454966.525227±0.000067 2455320.535733±0.000021 --- 2455426.42274 2454966.525123±0.000032 2454966.525042±0.000065 2454980.7487955±0.000045 --- 2454980.7487955±0.000045 2454964.94390±0.00006 2454964.944208±0.000403
Teq
(K)
596±19 --- --- --- 604±19 --- --- --- --- --- --- --- ---
547+7-8
--- --- 555
b
0.325±0.025 --- --- --- 0.385±0.022 --- --- ---
0.19+0.08-0.11
0.27729 ---
0.313 +0.046-0.061
---
0.41+0.04-0.03
---
0.175+0.181-0.175
0.354 +0.061-0.082
ω
(deg)
--- --- --- 0 --- --- --- --- --- --- --- --- --- --- --- --- ---
e
<0.063 --- --- 0 --- 0 --- --- --- --- --- --- --- --- --- --- <0.14
a
(au)
0.01490±0.00026 --- --- --- --- --- --- 0.01411±0.00032 --- --- --- --- --- --- --- --- ---
S
(S)
21.0+2.7-2.5
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Literature Stellar Spectra (2 Files)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Infrared Crossfield et al. 2011
Spectra     echelle grating Infrared Crossfield et al. 2011
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Radial Velocity Curve     27 Optical Spectra Charbonneau et al. 2009
Known Objects
1 Confirmed Planets
3 2MASS Point Source Catalog
Data Files
1 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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