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GJ 414 Overview

  • Star: GJ 414 A
    • Stellar Radius: 0.72 Solar Radius
    • Stellar Effective Temperature: 4085.00 K
    • Planet: GJ 414 A b
      • Disposition Confirmed
      • Planet Radius 0.235 Jupiter Radius
    • Planet: GJ 414 A c
      • Disposition Confirmed
      • Planet Radius 0.749 Jupiter Radius
  • Star: GJ 414 B
    • Stellar Radius: 0.55 Solar Radius
    • Stellar Effective Temperature: 3860.00 K

GJ 414 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
GJ 414 A
GJ 414 A b 50.8 d 2.63 R⨁ Radial Velocity 2021 Dedrick et al. 2021 Confirmed Planet
GJ 414 A c 749.83 d 8.4 R⨁ Radial Velocity 2021 Dedrick et al. 2021 Confirmed Planet
GJ 414 B
GJ 414
  • This reference contains discussion regarding the stellar multiplicity of this system. (Dedrick et al. 2021)
GJ 414 A
  • Some stellar parameter values may be biased due to companion blend (WDS Catalog)
GJ 414 B
  • Some stellar parameter values may be biased due to companion blend (WDS Catalog)
GJ 414 A b
  • Typo in semi-major axis in Table 3. Literature Value: 1.400 +0.055 -0.060. Exoplanet Archive Value: 0.2324 +0.0092 -0.0099. (Dedrick et al. 2021)
GJ 414 A c
  • Typo in semi-major axis in Table 3. Literature Value: 0.2324 +0.0092 -0.0099. Exoplanet Archive Value: 1.400 +0.055 -0.060. (Dedrick et al. 2021)
RA
11h11m05.88s
Dec
+30d26m42.61s
Distance
11.8893±0.0067 pc
Parallax
84.0803000±0.0470722 mas
Ecliptic Latitude
23.09657 deg
Ecliptic Longitude
156.34198 deg
Galactic Latitude
67.81292 deg
Galactic Longitude
198.37152 deg
Total Proper Motion
623.6368895±0.0822184 mas/yr
Proper Motion (RA)
591.622000±0.081171 mas/yr
Proper Motion (Dec)
-197.2470000±0.0911013 mas/yr
Photometry
mV 8.31±0.03
mTESS 6.9190±0.0061
mJ 5.764±0.020
mH 5.13±0.02
mKs 4.979±0.018
mW1 4.853±0.253
mW2 4.661±0.109
mW3 4.940±0.016
mW4 4.881±0.028
mIc 6.740±0.025
mGaia 7.728080±0.000672
mB 9.690±0.029
mg ---
mi ---
mr ---
mu ---
mz ---
Abundances
(Hypatia Catalog)
[Fe/H] 0.08±0.04 dex
[Mg/H] 0.09±0.07 dex
[Si/H] 0.06±0.05 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Rosenthal et al. 2021 Dedrick et al. 2021 TICv8 Gaia DR2 Turnbull 2015 Wright et al. 2004 Nordstrom et al. 2004 Gray et al. 2003 Nidever et al. 2002
S Index
--- --- --- --- --- 1.192±0.155 --- --- ---
Teff
(K)
4205.92670223000±39.60396866415 4120±109
4060.000+143.785-116.191
4135.71+104.29-114.90
 4085 --- --- --- ---
L✶
(log10(L⦿))
---
-0.924+0.045-0.050
-0.8629195+0.0243363-0.0410149
-0.882649+0.000434-0.000431
-0.886 +0.187-0.336
--- --- --- ---
M✶
(M⦿)
0.6947212437190001±0.0147657181092000 0.650±0.080
0.6400000+0.0847913-0.0847610
 --- 0.59 --- --- --- ---
R✶
(R⦿)
0.669922299085000±0.008087421441815 0.680±0.140
0.7484120+0.0611653-0.0881161
0.705064+0.040872-0.034258
 0.72 --- --- --- ---
Sp. T
--- K7 V --- --- K8V --- --- K7 V ---
γ
(km/s)
--- --- --- -16.312224825800±0.210172309611 --- --- -17.2±0.1 --- -16.4
Metallicity
(dex)
0.2433954045780000±0.0722676256019000 [Fe/H] 0.24±0.10 [Fe/H] --- --- --- --- --- --- ---
Age
(Gyr)
--- 12.4±5.2 --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.62493784406000±0.01197293396835 4.65±0.04
4.495970+0.128484-0.107676
 --- --- --- --- --- ---
v sin i
(km/s)
--- --- --- --- --- --- 3 --- ---
ρ✶
(g/cm3)
--- ---
2.1523959+0.8234076-0.7204086
 --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Dedrick et al. 2021 Rosenthal et al. 2021
Tp
(days)
2454203.07+13.06-6.61
(BJD-TDB)
---
Teq
(K)
308.6±33.5 ---
ω
(deg)
111+36-52
-49+44-20
Mp sin i
(M⨁)
7.600+2.440-2.190
10.2+1.3-1.2
Mp sin i
(MJup)
0.02391+0.00768-0.00689
0.0322+0.0042-0.0038
e
0.45+0.19-0.22
 0.28±0.13
P
(days)
50.80+0.10-0.26
51.625+0.038-0.037
Rp
(R⨁)
2.63+1.22-0.85
 ---
Rp
(RJup)
0.235+0.109-0.076
 ---
K
(m/s)
2.05+0.62-0.58
2.36+0.34-0.30
a
(au)
0.2324+0.0092-0.0099
 0.2403±0.0017
TC
(days)
---
2455179.9+2.1-2.3
(BJD)
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Dedrick et al. 2021 Rosenthal et al. 2021
Tp
(days)
2454210.36+18.31-26.44
(BJD-TDB)
---
Teq
(K)
124.7±13.5 ---
ω
(deg)
74.0+74.0-200.0
20+17-20
Mp sin i
(M⨁)
53.83+9.18-8.58
58.5+3.2-3.5
Mp sin i
(MJup)
0.1694+0.0289-0.0270
0.184+0.010-0.011
e
0.105+0.110-0.703
0.185+0.069-0.073
P
(days)
749.83+4.35-3.63
744.7+3.9-3.5
Rp
(R⨁)
8.40+3.60-2.50
 ---
Rp
(RJup)
0.749+0.321-0.223
 ---
K
(m/s)
5.14+0.74-0.72
5.36+0.29-0.32
a
(au)
1.400+0.055-0.060
 1.424±0.011
TC
(days)
--- 2457228±18
(BJD)
Print
RA
11h11m03.26s
Dec
+30d26m38.12s
Distance
11.87280±0.00825 pc
Parallax
84.1971000±0.0579164 mas
Ecliptic Latitude
23.09147 deg
Ecliptic Longitude
156.33328 deg
Galactic Latitude
67.80357 deg
Galactic Longitude
198.37582 deg
Total Proper Motion
639.0921983±0.0800129 mas/yr
Proper Motion (RA)
604.8310000±0.0805652 mas/yr
Proper Motion (Dec)
-206.4420000±0.0751049 mas/yr
Photometry
mV 10.82±0.20
mTESS 7.9686300±0.0075463
mJ 6.592±0.019
mH 5.975±0.018
mKs 5.734±0.020
mW1 ---
mW2 ---
mW3 ---
mW4 ---
mIc 7.820±0.025
mGaia 9.047080±0.001123
mB 12.457±0.304
mg 14.0347000±0.0085369
mi 12.445000±0.008407
mr 13.7025000±0.0091139
mu 14.920600±0.006496
mz 11.6561000±0.0096093
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Dedrick et al. 2021 TICv8 Gaia DR2 Hawley et al. 1996
Teff
(K)
3663±70 3606.0±157.0
3860.0+123.9-277.0
 ---
γ
(km/s)
--- --- -16.11092680250±0.36472173831 ---
L✶
(log10(L⦿))
-1.3+0.0-0.0
-1.34087+0.09148-0.11604
 --- ---
Metallicity
(dex)
0.080±0.090 [Fe/H] --- --- ---
Age
(Gyr)
11.2±5.9 --- --- ---
M✶
(M⦿)
0.542±0.022 0.5427530±0.0202415 --- ---
R✶
(R⦿)
0.548±0.017 0.5472260±0.0161861 --- ---
Sp. T
M2 V --- --- M1.5
ρ✶
(g/cm3)
--- 4.6694716±0.2404980 --- ---
log g
(log10(cm/s2))
--- 4.6963400±0.0094949 --- ---
Print
Literature Stellar Spectra (2 Files)
File Type Spectrum Type Wavelength Category Reference
Spectra     echelle grating Optical California Planet Search
Spectra     Infrared Lawler et al. 2009
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     89 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
2 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
2 Associated Literature Data
Known Objects
2 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 SuperWASP Time Series
2 Associated Literature Data
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