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K2-85 Overview

K2-85 0.68 R⦿ 4376.21 K
K2-85 b
0.125 RJup

K2-85 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-85
K2-85 b 0.68 d 1.4 R⨁ Transit 2016 Crossfield et al. 2016 Confirmed Planet
RA
03h57m51.56s
Dec
+18d27m53.82s
Distance
97.2179+0.3824-0.3794
pc
Parallax
10.2574000±0.0400014 mas
Ecliptic Latitude
-1.97049 deg
Ecliptic Longitude
61.16722 deg
Galactic Latitude
-25.81964 deg
Galactic Longitude
172.89825 deg
Total Proper Motion
116.4278937±0.0628651 mas/yr
Proper Motion (RA)
94.0268000±0.0712701 mas/yr
Proper Motion (Dec)
-68.6616000±0.0428694 mas/yr
Photometry
mV
12.416±0.069
mTESS
11.2967±0.0060
mJ
10.229±0.024
mH
9.613±0.024
mKs
9.466±0.018
mKep
12.099
mW1
9.394±0.023
mW2
9.461±0.021
mW3
9.412±0.040
mW4
8.35
mGaia
12.060000±0.000292
mB
13.795±0.044
Mission
K2 : Observed in Campaign 4
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Howard et al. 2025 Adams et al. 2021 TICv8 Gaia DR2 Mayo et al. 2018 Dressing et al. 2017 Crossfield et al. 2016 Kruse et al. 2019 Barros et al. 2016 Adams et al. 2016
Teff
(K)
4232.0±70.0 4427±48
4222.000+145.262-100.365
4349.8804+177.2700-192.9850
 4441.0±50.0
4376.206055+95.304535-90.122589
 4268±122 --- --- 4462.0
M✶
(M⦿)
0.70±0.02 ---
0.6600000+0.0762542-0.0846643
 ---
0.678307 +0.020918-0.022025
0.698340±0.069834 0.573±0.051 --- --- ---
R✶
(R⦿)
0.71±0.10 0.68±0.03
0.7341120+0.0530402-0.0761256
0.6714728+0.0637939-0.0515562
0.646851 +0.019620-0.018865
0.675849+0.031038-0.030576
 0.507±0.044
0.671 +0.052-0.064
--- 0.71±0.05
L✶
(log10(L⦿))
--- ---
-0.8117075+0.0270410-0.0289202
-0.83733919+0.00247165-0.00248579
 --- --- --- --- --- ---
γ
(km/s)
--- --- --- -3.9442784228703864±0.4924150266641786 --- --- --- --- --- ---
Metallicity
(dex)
0.14±0.09 [Fe/H] -0.36±0.05 [Fe/H] --- --- -0.14±0.08 [Fe/H] --- --- --- --- -0.28 [Fe/H]
log g
(log10(cm/s2))
4.44±0.10 4.3±0.1
4.5260900+0.1124210-0.0991247
 --- 4.65±0.1 --- 4.776±0.057 --- --- 4.17
ρ✶
(g/cm3)
--- ---
2.3519145+0.8484137-0.6941787
 --- --- --- --- --- --- ---
v sin i
(km/s)
3.0±1.0 --- --- --- --- --- --- --- --- ---
S Index
0.7276 --- --- --- --- --- --- --- --- ---
CAII LOG RHK
-4.4024 --- --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Howard et al. 2025 Adams et al. 2021 Mayo et al. 2018 Dressing et al. 2017 Crossfield et al. 2016 Kruse et al. 2019 Barros et al. 2016 Adams et al. 2016
a/R✶
---
6.1+0.4-0.7
5.658054 +0.735126-1.489957
4.30+0.21-0.20
 ---
5.84 +1.48-0.68
---
6.2 +0.7-1.6
i
(deg)
---
89.4+6.0-4.0
85.470635 +3.326316-6.088032
80.21+3.62-1.46
 --- --- ---
85.9 +2.9-5.6
P
(days)
0.684538626159±0.000010000000 0.684559±0.000010 0.684553±0.000013 0.684557±0.000017 0.684533±0.000018
0.6845410 +0.0000084-0.0000100
0.68458757 0.684575±0.000143
Rp
(R⨁)
1.4±0.2
1.20+0.08-0.07
1.27572041839 +0.108466778123-0.0774316929744
1.37±0.11 1.01±0.12
1.36 +0.13-0.23
--- 1.4±0.2
Rp
(RJup)
0.12±0.02
0.107+0.007-0.006
0.1138121526 +0.0096767578-0.0069079929
0.122±0.010 0.0901±0.0107
0.121 +0.012-0.021
 --- 0.125±0.018
Rp/R✶
---
0.01550+0.00088-0.00032
0.018081 +0.001436-0.000962
0.018568+0.001260-0.001300
 0.0179±0.0015
0.0186 +0.0010-0.0027
---
0.0181 +0.002-0.001
TC
(days)
2457065.36778±0.00056
(BJD)
2457102.33296+0.00056-0.00042
(HJD)
2457064.68219 +0.000740-0.000725
2457065.367±0.001
(BJD)
2457065.36846±0.00094
(BJD-TDB)
2457061.94482 +0.00063-0.00050
(BJD)
2457061.942054
(BJD)
2457077.68807 +0.00063-0.00052
(BJD)
Teq
(K)
1355.0±99.0 --- --- --- --- --- --- ---
S
(S⨁)
800.0±234.0 --- ---
1069.1+163.5-144.7
 479±103 --- --- ---
Mp
(M⨁)
3.2±1.3 --- --- --- --- --- --- ---
Mp
(MJup)
0.010±0.004 --- --- --- --- --- --- ---
ρ
(g/cm3)
5.90±4.90 --- --- --- --- --- --- ---
a
(au)
--- --- --- 0.0130±0.0000 0.01263±0.00037 --- --- ---
T14
(hours)
--- --- --- --- 0.782±0.045
0.81840+0.02640-0.04560
0.91200+0.24200-0.24200
 ---
δ
(%)
--- --- --- --- ---
0.04 +0.0015-0.0016
0.027±0.002 ---
ω
(deg)
--- --- ---
67.5900000+69.4581820-121.9451770
 --- --- --- ---
e
--- --- ---
0.240000+0.208610-0.194009
 --- --- --- ---
Print
Known Objects
1 Confirmed Planets
1 K2 Targets
1 2MASS Point Source Catalog
Data Files
1 K2 Time Series
1 Associated Literature Data
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