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HIP 41378 Overview

HIP 41378 1.31 R⦿ 6352.33 K
HIP 41378 b
0.236 RJup
HIP 41378 c
0.244 RJup
HIP 41378 g
HIP 41378 d
0.326 RJup
HIP 41378 e
0.463 RJup
HIP 41378 f
0.845 RJup
?
HIP 41378 h

HIP 41378 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
HIP 41378
HIP 41378 b 15.57 d 2.64 R⨁ Transit 2016 Vanderburg et al. 2016 Confirmed Planet
HIP 41378 c 31.71 d 2.74 R⨁ Transit 2016 Vanderburg et al. 2016 Confirmed Planet
HIP 41378 g 63.19 d > 5.75 M⨁ Radial Velocity 2025 Howard et al. 2025 Confirmed Planet
HIP 41378 d 278.36 d 3.65 R⨁ Transit 2016 Vanderburg et al. 2016 Confirmed Planet
HIP 41378 e 393 d 5.19 R⨁ Transit 2016 Vanderburg et al. 2016 Confirmed Planet
HIP 41378 f 542.08 d 9.47 R⨁ Transit 2016 Vanderburg et al. 2016 Confirmed Planet
HIP 41378 h 2602 d > 43 M⨁ Radial Velocity 2026 Grouffal et al. 2026 Candidate Planet
HIP 41378 HIP 41378 f
RA
08h26m27.80s
Dec
+10d04m49.33s
Distance
106.289+0.676-0.668
pc
Parallax
9.3799400±0.0590378 mas
Ecliptic Latitude
-8.84499 deg
Ecliptic Longitude
126.45937 deg
Galactic Latitude
25.64577 deg
Galactic Longitude
214.5263 deg
Total Proper Motion
48.1425366±0.1041239 mas/yr
Proper Motion (RA)
-48.142500±0.104124 mas/yr
Proper Motion (Dec)
0.05935200±0.05921310 mas/yr
Photometry
mV
8.93±0.03
mTESS
8.4642±0.0061
mJ
7.982±0.026
mH
7.786±0.038
mKs
7.722±0.031
mKep
9.128
mW1
7.662±0.029
mW2
7.732±0.020
mW3
7.732±0.018
mW4
7.860±0.248
mGaia
8.809980±0.000389
mB
9.416±0.037
Abundances
(Hypatia Catalog)
[Fe/H] -0.03±0.08 dex
[C/H] 0.04±0.09 dex
[Mg/H] 0.05±0.07 dex
Mission
K2 : Observed in Campaigns 5, 18
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Leonardi et al. 2025 Grouffal et al. 2025 Howard et al. 2025 Grouffal et al. 2022 Lund et al. 2019 TICv8 Berardo et al. 2019 Becker et al. 2019 Gaia DR2 Vanderburg et al. 2016 Luo et al. 2018 ExoFOP ExoFOP
Teff
(K)
6371±65 ---
6320+60-30
 --- 6290±77
6352.330+163.198-136.107
 6226±43 6199±50
6169.000+263.000-159.167
 6199±50 --- 6352.330±149.652 6352.330±149.652
R✶
(R⦿)
1.306±0.010 1.299±0.002 1.273±0.015 1.28 1.300±0.009
1.3088300+0.0756744-0.0645719
 1.343±0.032 1.35±0.03
1.3818319+0.0741629-0.1106940
 1.40±0.19 --- 1.30883002281189±0.07012320000000 1.31±0.07
log g
(log10(cm/s2))
4.32±0.02 --- 4.294±0.006 --- 4.298±0.004
4.3050200+0.1058730-0.0852095
 --- 4.20±0.03 --- 4.18±0.10 --- 4.3050200±0.0955413 4.3050200±0.0955413
v sin i
(km/s)
7.5±0.5 5.6±0.3 5.6±0.5 3.8±1.0 --- --- --- --- --- 7.13±0.50 --- --- ---
Metallicity
(dex)
0.046±0.044 [Fe/H] --- -0.10±0.07 [Fe/H] --- -0.050±0.100 [Fe/H] 0.021±0.013 [M/H] --- -0.11±0.08 [M/H] --- -0.11±0.08 [Fe/H] --- --- ---
M✶
(M⦿)
1.245+0.037-0.043
 --- 1.16±0.04 ---
1.22+0.03-0.02
1.26100+0.23242-0.15725
 1.168±0.072 1.140±0.033 --- 1.150±0.064 --- --- ---
Age
(Gyr)
1.8+0.7-0.6
 --- --- ---
2.07+0.36-0.27
 --- --- 4.279±0.931 --- --- --- --- ---
L✶
(log10(L⦿))
--- --- --- --- ---
0.40019249+0.01447287-0.01849651
 --- ---
0.3964642+0.0035969-0.0036270
 --- --- --- ---
γ
(km/s)
--- --- --- --- --- --- --- --- 50.423514089151226±0.373855518123627 --- --- --- ---
CAII LOG RHK
--- --- -4.78±0.03 --- --- --- --- --- --- --- --- --- ---
Prot
(days)
--- 7.8±1.0 --- --- --- --- --- --- --- --- --- --- ---
ρ✶
(g/cm3)
0.781±0.018 --- --- --- 0.785±0.008
0.7929258+0.2081002-0.2012654
 0.680±0.064 --- --- --- --- --- ---
Sp. T
--- --- --- --- --- --- --- --- --- --- F6 --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit, Transit Timing Variations
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Atmospheric Spectroscopy
Source Grouffal et al. 2026 Leonardi et al. 2025 Howard et al. 2025 Lund et al. 2019 Berardo et al. 2019 Vanderburg et al. 2016 ExoFOP
a/R✶
--- 21.54±0.16 ---
22.8+1.3-1.0
21+2-5
 19.5±4.5 ---
b
0.448±0.029
0.445+0.020-0.023
 ---
0.31+0.18-0.22
 --- 0.55±0.28 ---
i
(deg)
---
88.816+0.065-0.061
 ---
89.2+0.7-0.3
88.8+0.8-1.4
 88.4±1.6 ---
P
(days)
15.57209±0.00002
15.571893+0.000068-0.000053
 15.57208±0.00002 15.57209±0.00002
15.572098+0.000018-0.000019
 15.5712±0.0012 15.5718552±0.0000291
Rp/R✶
--- 0.01705±0.00015 ---
0.0180+0.0002-0.0003
0.01843+0.00110-0.00037
 0.0188±0.0011 ---
a
(au)
--- 0.1303±0.0013 ---
0.138+0.008-0.006
 --- --- ---
T14
(hours)
5.26±0.21
5.038+0.034-0.029
 --- 5.06±0.03 --- --- 4.931±0.297
TC
(days)
2457152.2820±0.0019
(BJD)
--- 2457152.2818±0.0012
(BJD)
2457152.283+0.001-0.002
(BJD)
2457152.2818±0.0012
(BJD-TDB)
2457152.2844±0.0021
(BJD)
2460266.6573750±0.0049241
(BJD)
Rp
(R⨁)
2.640+0.022-0.024
 2.419±0.027 2.595±0.036 --- --- 2.90±0.44 2.443170±0.137602
Rp
(RJup)
0.2355+0.0020-0.0021
 0.2158±0.0024 0.2315±0.0032 --- --- 0.259±0.039 0.2179654±0.0122760
Teq
(K)
--- 970.67±10.54
959.0+9.0-5.0
 --- --- --- 912
S
(S⨁)
--- 148.50±7.12
140.0+5.0-3.0
 --- --- --- 115.206
Mp
(M⨁)
6.9±0.5
9.060+1.410-0.510
 6.89±0.88 --- --- --- ---
Mp
(MJup)
0.022±0.002
0.02851+0.00444-0.00160
 0.0217±0.0028 --- --- --- ---
ρ
(g/cm3)
2.07±0.16 --- 2.17±0.28 --- --- --- ---
ω
(deg)
---
-13+14-17
 --- --- --- --- ---
e
0.05+0.03-0.05
0.0213+0.0022-0.0099
 --- --- --- --- ---
δ
(%)
--- --- --- --- --- --- 0.03800000±0.00100018
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit Timing Variations, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Grouffal et al. 2026 Leonardi et al. 2025 Howard et al. 2025 Lund et al. 2019 Berardo et al. 2019 Vanderburg et al. 2016 ExoFOP
a/R✶
--- 34.60±0.26 ---
36+6-9
22+57-7
 73±18 ---
b
0.910+0.036-0.045
0.9290+0.0041-0.0044
 ---
0.90+0.06-0.03
 --- 0.53±0.29 ---
i
(deg)
--- 88.462±0.015 --- 88.6±0.4
87.5+2.2-1.4
 89.58±0.52 ---
P
(days)
31.70591±0.00005
31.708380+0.000390-0.000410
 31.70603±0.00006
31.7061+0.0001-0.0002
31.70648+0.00024-0.00019
 31.6978±0.0040 31.7180208316155±0.0001296913300
Rp/R✶
---
0.01766+0.00043-0.00042
 --- 0.0182±0.0008
0.0200+0.0180-0.0037
 0.0166±0.0012 ---
a
(au)
--- 0.2093±0.0022 ---
0.22+0.03-0.06
 --- --- ---
T14
(hours)
3.22+0.49-0.30
2.909+0.065-0.060
 --- 3.21±0.19 --- --- 2.33263213009818±0.83854300000000
TC
(days)
2457163.1660+0.0016-0.0013
(BJD)
---
2457163.1609+0.0023-0.0027
(BJD)
2457163.162±0.003
(BJD)
2457163.1609+0.0023-0.0027
(BJD-TDB)
2457163.1659±0.0027
(BJD)
2458494.90919500±0.00338789
(BJD)
Rp
(R⨁)
2.740+0.043-0.049
2.505+0.057-0.056
 2.727±0.060 --- --- 2.56±0.40 2.29980485432181±3.67333820000000
Rp
(RJup)
0.2444+0.0038-0.0044
0.2235+0.0051-0.0050
 0.2433±0.0054 --- --- 0.228±0.036 0.205175199768326±0.327713848235995
Teq
(K)
--- 765.87±8.33
757.0+7.0-4.0
 --- --- --- 696.502287374735
S
(S⨁)
--- 57.55±2.79
54.0+2.0-1.0
 --- --- --- 55.6174649547748
δ
(%)
--- --- --- --- --- --- 0.0292864964508886±0.0039129612000000
Mp
(M⨁)
5.97+0.56-0.86
6.53+1.33-0.42
 4.4±1.1 --- --- --- ---
Mp
(MJup)
0.0188+0.0018-0.0027
0.0205+0.0042-0.0013
 0.014±0.003 --- --- --- ---
ρ
(g/cm3)
1.60±0.21 --- 1.19±0.30 --- --- --- ---
ω
(deg)
---
158+4-13
 --- --- --- --- ---
e
0.044+0.022-0.044
0.0678+0.0078-0.0097
 --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity
Tools
Planetary Systems
K2 Names
Source Grouffal et al. 2026 Leonardi et al. 2025 Howard et al. 2025
Teq
(K)
--- --- 605.0±4.7
S
(S⨁)
--- ---
22.3+0.8-0.5
Mp sin i
(M⨁)
5.75+0.76-0.83
 --- 7.0±1.5
Mp sin i
(MJup)
0.0181+0.0024-0.0026
 --- 0.022±0.005
P
(days)
63.19±0.12
64.067+0.026-0.067
 62.06±0.32
ω
(deg)
---
205+5-115
 ---
Mp
(M⨁)
---
6.81+1.14-0.98
 ---
Mp
(MJup)
---
0.0214+0.0036-0.0031
 ---
e
0.0550+0.0240-0.0540
0.010+0.031-0.010
 ---
i
(deg)
---
95.0+1.0-10.0
 ---
TC
(days)
2458777.86+1.86-1.82
(BJD)
--- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Grouffal et al. 2026 Howard et al. 2025 Grouffal et al. 2022 Lund et al. 2019 Berardo et al. 2019 Becker et al. 2019 Vanderburg et al. 2016
a/R✶
--- --- 147.03 190±20 --- --- ---
b
0.54±0.03 --- ---
0.58+0.14-0.09
 --- 0.50±0.27 0.50±0.27
i
(deg)
--- --- 89.81 89.8±0.1
89.930+0.025-0.018
 --- ---
P
(days)
278.3618±0.0003 278.3618±0.0005 278.3618 278.360±0.001 <1114 >48.1
156+163-78
Rp/R✶
--- --- 0.0253
0.0260+0.0004-0.0006
0.02560+0.00050-0.00070
 0.0259±0.0015 0.0259±0.0015
a
(au)
--- --- ---
1.17+0.14-0.11
 --- --- ---
T14
(hours)
12.71+0.46-0.39
 --- ---
12.44+0.10-0.16
 --- 12.71±0.26 12.71±0.26
TC
(days)
2457166.26100+0.00061-0.00057
(BJD)
2457166.2604±0.0017
(BJD)
2459671.5279±0.0634
(BJD)
2457166.273±0.004
(BJD)
2457166.2604±0.0017
(BJD-TDB)
2458279.709±0.003
(BJD)
2457166.2629±0.0016
(BJD)
Rp
(R⨁)
3.650±0.029 3.54±0.06 --- --- --- --- 3.96±0.59
Rp
(RJup)
0.3256±0.0026 0.316±0.005 --- --- --- --- 0.353±0.053
Teq
(K)
---
367.0+3.0-2.0
 --- --- --- --- ---
S
(S⨁)
---
3.01+0.11-0.06
 --- --- --- --- ---
Mp
(M⨁)
6.53+2.65-3.15
 <4.6 --- --- --- --- ---
Mp
(MJup)
0.0205+0.0083-0.0099
 <0.014 --- --- --- --- ---
ρ
(g/cm3)
0.740±0.330 <0.56 --- --- --- --- ---
e
0.0630+0.0270-0.0630
 --- 0 --- --- --- ---
λ
(deg)
--- ---
46+28-37
 --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Grouffal et al. 2026 Howard et al. 2025 Lund et al. 2019 Berardo et al. 2019 Vanderburg et al. 2016
a/R✶
--- ---
112+14-13
283+172-177
 ---
b
0.632+0.034-0.039
 ---
0.52+0.19-0.15
 --- 0.31±0.17
i
(deg)
--- --- 89.7±0.1
89.910+0.220-0.045
 ---
P
(days)
393+3-5
 369.0±10.0
260+160-60
 ---
131+61-36
Rp/R✶
--- --- 0.037±0.001
0.03686+0.00110-0.00080
 0.03613±0.00096
a
(au)
--- ---
0.68+0.09-0.08
 --- ---
T14
(hours)
13.20+0.33-0.26
 ---
13.00+0.12-0.15
 --- 13.007±0.088
TC
(days)
2457142.01800+0.00051-0.00048
(BJD)
2457142.0194±0.0010
(BJD)
2457142.020±0.001
(BJD)
2457142.0194±0.0010
(BJD-TDB)
2457142.01656±0.00076
(BJD)
Rp
(R⨁)
5.19±0.04 4.92±0.09 --- --- 5.51±0.77
Rp
(RJup)
0.463±0.004 0.439±0.008 --- --- 0.492±0.069
Teq
(K)
--- 335.0±4.0 --- --- ---
S
(S⨁)
--- 2.1±0.1 --- --- ---
Mp
(M⨁)
7.620+3.200-4.630
 12.0±5.0 --- --- ---
Mp
(MJup)
0.02398+0.01007-0.01457
 0.0378±0.0157 --- --- ---
ρ
(g/cm3)
0.30+0.13-0.18
 0.55±0.23 --- --- ---
e
0.065+0.031-0.065
 --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
NExoList: JWST
Atmospheric Spectroscopy
Source Grouffal et al. 2026 Grouffal et al. 2025 Howard et al. 2025 Lund et al. 2019 Berardo et al. 2019 Becker et al. 2019 Vanderburg et al. 2016
a/R✶
---
230.12+0.35-0.37
 ---
230.6+1.3-1.1
 --- --- ---
b
0.207+0.034-0.031
 0.18±0.01 --- 0.17±0.03 --- 0.227±0.089 0.227±0.089
i
(deg)
--- 89.953±0.003 --- 89.96±0.01
89.980+0.009-0.006
 --- ---
P
(days)
542.0797±0.0001
542.0797+0.0001-0.0002
 542.07975±0.00014 542.0793±0.0002 <1084 >46.4
324+121-126
Rp/R✶
--- 0.0666±0.0001 --- 0.0664±0.0001
0.06602+0.00017-0.00016
 0.0672±0.0013 0.0672±0.0013
a
(au)
--- --- ---
1.394+0.013-0.012
 --- --- ---
T14
(hours)
18.90+0.85-0.96
 --- ---
18.906+0.015-0.016
 --- 18.998±0.051 18.998±0.051
TC
(days)
2457186.91400+0.00018-0.00022
(BJD)
2457186.9146±0.0002
(BJD)
2457186.91423+0.00039-0.00038
(BJD)
2457186.9162±0.0003
(BJD)
2457186.91423+0.00039-0.00038
(BJD-TDB)
2458271.0740±0.0008
(BJD)
2457186.91451±0.00032
(BJD)
Rp
(R⨁)
9.47±0.07 --- 9.2±0.1 --- --- --- 10.2±1.4
Rp
(RJup)
0.845±0.006 --- 0.82±0.01 --- --- --- 0.910±0.125
Teq
(K)
--- ---
294.0+3.0-1.0
 --- --- --- ---
S
(S⨁)
--- ---
1.24+0.06-0.02
 --- --- --- ---
Mp
(M⨁)
25±5 --- 12.0±3.0 --- --- --- ---
Mp
(MJup)
0.079±0.016 --- 0.0378±0.0094 --- --- --- ---
ρ
(g/cm3)
0.16+0.03-0.04
 --- 0.090±0.020 --- --- --- ---
δ
(%)
--- --- --- --- --- 0.5 ---
e
0.0520+0.0250-0.0520
 --- --- --- --- --- ---
λ
(deg)
--- 21±8 --- --- --- --- ---
ψ
(deg)
--- 52±6 --- --- --- --- ---
Print
Status
Candidate Planet
Detected By
Radial Velocity
Tools
Source Grouffal et al. 2026
Mp sin i
(M⨁)
43+16-13
Mp sin i
(MJup)
0.14+0.05-0.04
e
0.0660+0.0330-0.0660
P
(days)
2602+468-433
TC
(days)
2458291+239-225
Print
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     60 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
6 Confirmed Planets
2 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 K2 Time Series
6 Associated Literature Data
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  • Star
  • Confirmed
  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
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