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GJ 3470 Overview

  • Star: GJ 3470
    • Stellar Radius: 0.50 Solar Radius
    • Stellar Effective Temperature: 3552.00 K
    • Planet: GJ 3470 b
      • Disposition Confirmed
      • Planet Radius 0.408 Jupiter Radius

GJ 3470 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
GJ 3470
GJ 3470 b 3.34 d 4.57 R⨁ Radial Velocity 2012 Bonfils et al. 2012 Confirmed Planet
GJ 3470 GJ 3470 b
  • Typo in published unit of RV semi-amplitude in Table 2. Literature Value: 0.00901±0.00075 m/s. Exoplanet Archive Value: 9.01±0.75 m/s (Bonfils et al. 2012)
RA
07h59m05.64s
Dec
+15d23m28.35s
Distance
29.4214+0.0508-0.0507
pc
Parallax
33.9601000±0.0581536 mas
Ecliptic Latitude
-5.12786 deg
Ecliptic Longitude
118.72644 deg
Galactic Latitude
21.75667 deg
Galactic Longitude
206.23529 deg
Total Proper Motion
194.3609859±0.1028126 mas/yr
Proper Motion (RA)
-185.734000±0.105966 mas/yr
Proper Motion (Dec)
-57.2632000±0.0603679 mas/yr
Photometry
mV 12.332±0.016
mTESS 10.2479000±0.0073281
mJ 8.794±0.026
mH 8.206±0.023
mKs 7.989±0.023
mW1 7.807±0.027
mW2 7.783±0.020
mW3 7.683±0.020
mW4 7.786±0.215
mIc ---
mGaia 11.353700±0.001255
mB 13.785±0.044
mg 15.4392000±0.0101128
mi 10.7632000±0.0004918
mr 11.8694000±0.0008937
mu 15.9337000±0.0067464
mz 10.5750000±0.0017872
Abundances
(Hypatia Catalog)
[Fe/H] 0.25±0.04 dex
[C/H] 0.27±0.09 dex
[O/H] 0.13±0.09 dex
[Na/H] 0.15±0.04 dex
[Mg/H] 0.19±0.07 dex
[Al/H] 0.06±0.06 dex
[Si/H] 0.18±0.05 dex
[Ca/H] 0.24±0.06 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source TICv8 Kosiarek et al. 2019 Gaia DR2 Awiphan et al. 2016 Biddle et al. 2014 Fukui et al. 2013 Demory et al. 2013 Bonfils et al. 2012 Hawley et al. 1996 ExoFOP
Teff
(K)
3552.0±157.0 3652±50
3775.500+184.035-45.500
 3600±100 3652±50 --- 3600±100 3600±200 --- 3552±157
L✶
(log10(L⦿))
-1.44600+0.09264-0.11791
-1.5+0.0-0.0
 --- --- --- --- ---
-1.538 +0.029-0.031
--- ---
ρ✶
(g/cm3)
5.6241919±0.2744326 --- --- 3.30±0.17 6.51±1.55
5.40+0.20-0.45
4.10+0.52-0.47
 --- --- ---
M✶
(M⦿)
0.4977570±0.0203467 0.51±0.06 ---
0.539+0.047-0.043
 0.51±0.06
0.557+0.028-0.020
0.539+0.047-0.043
 0.541±0.067 --- ---
R✶
(R⦿)
0.4996980±0.0149283 0.48±0.04 --- 0.547±0.018 0.48±0.04
0.526+0.023-0.011
0.568+0.037-0.031
 0.503±0.063 --- 0.499698013067245±0.014928300000000
log g
(log10(cm/s2))
4.7376700±0.0081941 4.658±0.035 --- 4.695±0.046 4.78±0.12
4.741+0.009-0.019
 4.658±0.035 --- --- 4.74±0.01
γ
(km/s)
--- --- 26.089736737552283±0.251041932265976 --- --- --- --- 26.51691±0.00053 --- ---
Age
(Gyr)
--- 1.65±1.35 --- --- 2.5±1.5 --- --- 1.65±1.35 --- ---
Sp. T
--- M1.5 --- --- --- --- --- M1.5 M1.5 ---
Metallicity
(dex)
--- 0.20±0.10 [Fe/H] --- 0.20±0.10 [Fe/H] 0.18±0.08 [Fe/H] --- 0.20±0.10 [Fe/H] --- --- ---
Prot
(days)
--- 21.54±0.49 --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
TOI
Transit
NExoList: JWST
Atmospheric Spectroscopy
Source Awiphan et al. 2016 Kokori et al. 2023 Kosiarek et al. 2019 Dragomir et al. 2015 Biddle et al. 2014 Nascimbeni et al. 2013 Crossfield et al. 2013 Fukui et al. 2013 Demory et al. 2013 Bonfils et al. 2012 ExoFOP
Teq
(K)
593.5±96.5 --- 615±16 --- 604±98 --- --- --- --- 615±16 595.191322613779
S
(S⨁)
--- --- --- --- --- --- --- --- --- --- 29.6583759145902
P
(days)
3.3366496+0.0000039-0.0000033
 3.33665240±0.00000014
3.336649+0.000084-0.000081
 3.3366413±0.0000060
3.3366487 +0.0000043-0.0000033
3.336649±0.000002 3.336665±0.000008 3.336649±0.000005 3.33665±0.00005 3.33714±0.00017 3.33665106328833±0.00000128701750
Rp
(R⨁)
4.57±0.18 --- 3.88±0.32 --- 3.88±0.32 --- ---
4.32+0.21-0.10
4.83+0.22-0.21
 4.2±0.6 4.1305078145615±0.1541720800000
Rp
(RJup)
0.408±0.016 --- 0.346±0.029 --- 0.346±0.029 --- ---
0.385+0.019-0.009
0.431+0.020-0.019
 0.37±0.05 0.36849985963144±0.01375433539644
δ
(%)
--- --- --- --- --- --- --- --- --- 0.52±0.04 0.676587043260467±0.004308213000000
T14
(hours)
--- ---
1.918+0.024-0.024
1.918+0.024-0.024
 --- --- --- --- 1.90±0.01 --- 1.85800338420603±0.03204808000000
TC
(days)
2455983.70421
(BJD)
2456974.689880±0.000059
(BJD-TDB)
2455953.6630±0.0035
(JD)
2456677.727712±0.000220
(BJD-TDB)
2455983.70472±0.00021
(BJD-TDB)
2456340.72559+0.00009-0.00011
(BJD-TDB)
2456390.77580±0.00040
(BJD-TDB)
2456247.29954±0.00019
(BJD-TDB)
2456090.47701±0.00010
(BJD-TDB)
2455953.6645±0.0034
(BJD)
2459500.53574000±0.00011513
(BJD)
a/R✶
13.98+0.20-0.28
13.9+0.4-0.5
12.92+0.72-0.65
12.92+0.72-0.65
13.94 +0.44-0.49
---
14.2450+0.5698-1.3915
14.70+0.17-0.43
 --- 14.9±1.2 ---
Mp
(M⨁)
13.9±1.5 ---
12.58+1.31-1.28
 --- 13.73±1.61 --- --- 14.1±1.3
13.9+1.5-1.4
 14.0±1.7 ---
Mp
(MJup)
0.0437±0.0047 ---
0.03958+0.00412-0.00403
 --- 0.043±0.005 --- --- 0.0444±0.0041
0.0437+0.0047-0.0044
 0.044±0.005 ---
e
---
0.017+0.016-0.012
0.114+0.052-0.051
 ---
0.017 +0.016-0.012
--- --- --- --- <0.051 ---
i
(deg)
89.13+0.26-0.34
88.9+0.6-0.5
 --- ---
88.88 +0.62-0.45
88.12+0.34-0.30
88.98+0.94-1.25
 ---
88.3+0.5-0.4
 >88.8 ---
ρ
(g/cm3)
0.80±0.13 ---
0.930+0.560-0.310
 --- 1.18±0.33 --- --- 0.940±0.120
0.72+0.13-0.12
 1.07±0.43 ---
Rp/R✶
--- 0.0764±0.0004 --- --- 0.07642±0.00037 ---
0.0789+0.0021-0.0019
 ---
0.07798+0.00046-0.00045
 0.0755±0.0031 ---
K
(m/s)
13.4±1.2 ---
8.21+0.47-0.46
 --- --- --- --- --- 8.9±1.1 9.01±0.75 ---
a
(au)
0.0355±0.0019 --- --- --- 0.031±0.0028 --- ---
0.03596+0.00059-0.00044
0.03557+0.00096-0.00100
 0.0348±0.0014 ---
ω
(deg)
---
1.7+1.0-1.2
-82.5+5.7-2.3
 ---
1.70 +0.96-1.20
--- --- --- --- --- ---
b
--- --- ---
0.470+0.074-0.110
 0.29±0.14 --- --- <0.281
0.40+0.06-0.08
 --- ---
Print
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Radial Velocity Curve     61 Optical Spectra Bonfils et al. 2012
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
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  • Kepler | K2
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