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GJ 3378 Overview

GJ 3378 0.29 R⦿ 3280.00 K
GJ 3378 b

GJ 3378 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
GJ 3378
GJ 3378 b 21.45 d > 2.3 M⨁ Radial Velocity 2026 Robertson et al. 2026 Confirmed Planet
RA
06h01m10.83s
Dec
+59d35m35.49s
Distance
7.72274±0.00480 pc
Parallax
129.4590000±0.0799384 mas
Ecliptic Latitude
36.1541 deg
Ecliptic Longitude
90.18113 deg
Galactic Latitude
17.17401 deg
Galactic Longitude
154.06787 deg
Total Proper Motion
934.663979±0.111590 mas/yr
Proper Motion (RA)
-104.924000±0.106455 mas/yr
Proper Motion (Dec)
-928.756000±0.111654 mas/yr
Photometry
mV
12.37±0.20
mTESS
9.1286700±0.0072862
mJ
7.465±0.023
mH
6.949±0.029
mKs
6.639±0.018
mGaia
10.408400±0.000718
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Robertson et al. 2026 TICv8 Moutou et al. 2024
Teff
(K)
3340±60 3280.0±157.0 3378±30
L✶
(log10(L⦿))
-2.1+0.0-0.0
-2.06304+0.09771-0.12628
 ---
ρ✶
(g/cm3)
17.7+1.6-1.5
 15.521483±0.193455 ---
M✶
(M⦿)
0.262±0.021 0.2629820±0.0201258 0.26±0.02
R✶
(R⦿)
0.275±0.009 0.287996±0.008557 ---
log g
(log10(cm/s2))
4.97±0.06 4.9392200±0.0074861 ---
Metallicity
(dex)
-0.090±0.080 [Fe/H] --- -0.050±0.100 [Fe/H]
Sp. T
M4 V --- M4 V
Prot
(days)
--- --- 95.1±2.3
v sin i
(km/s)
2.62±0.26 --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
Source Robertson et al. 2026 Moutou et al. 2024
Teq
(K)
272±7 260
S
(S⨁)
0.91±0.09 ---
Mp sin i
(M⨁)
2.3±0.4
5.26+0.94-0.97
Mp sin i
(MJup)
0.0072±0.0013
0.0165+0.0030-0.0031
e
0
0.36+0.13-0.16
P
(days)
21.45±0.01
24.728+0.056-0.060
K
(m/s)
1.3±0.2
3.08+0.60-0.58
a
(au)
0.09673±0.00080 0.106±0.003
TC
(days)
2460292.2±0.6
(BJD-TDB)
2459181.2+1.7-1.1
(JD)
ω
(deg)
--- -0.600±29.200
Print
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
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  • Candidate
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  • Controversial
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  • Time Series
  • Kepler | K2
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