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K2-199 Overview

  • Star: K2-199
    • Stellar Radius: 0.70 Solar Radius
    • Stellar Effective Temperature: 4550.00 K
    • Planet: K2-199 b
      • Disposition Confirmed
      • Planet Radius 0.154 Jupiter Radius
    • Planet: K2-199 c
      • Disposition Confirmed
      • Planet Radius 0.254 Jupiter Radius

K2-199 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-199
K2-199 b 3.23 d 1.73 R⨁ Transit 2018 Mayo et al. 2018 Confirmed Planet
K2-199 c 7.37 d 2.85 R⨁ Transit 2018 Mayo et al. 2018 Confirmed Planet
K2-199 K2-199 b K2-199 c
RA
13h55m36.35s
Dec
-06d08m09.90s
Distance
107.518+0.602-0.596
pc
Parallax
9.2723200±0.0514418 mas
Ecliptic Latitude
5.3406 deg
Ecliptic Longitude
209.04195 deg
Galactic Latitude
53.29188 deg
Galactic Longitude
330.29727 deg
Total Proper Motion
61.1741013±0.0782275 mas/yr
Proper Motion (RA)
-59.2561000±0.0785202 mas/yr
Proper Motion (Dec)
15.1982000±0.0736341 mas/yr
Photometry
mV 12.358±0.114
mTESS 11.2309±0.0061
mJ 10.277±0.023
mH 9.726±0.021
mKs 9.625±0.019
mKep 11.930
mW1 9.542±0.022
mW2 9.609±0.020
mW3 9.514±0.040
mW4 8.827
mGaia 11.905300±0.000403
mB 13.323±0.029
mg 13.0845000±0.0013654
mi 11.5964000±0.0007349
mr 11.9667000±0.0008587
mu 15.7495000±0.0076665
mz 11.8017000±0.0037446
Abundances
(Hypatia Catalog)
[Fe/H] -0.08±0.04 dex
[Mg/H] 0.00±0.07 dex
Mission
K2: Observed in Campaigns 6, 17
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 Howard et al. 2025 Akana Murphy et al. 2021 TICv8 Livingston et al. 2018 Gaia DR2 Mayo et al. 2018 Kruse et al. 2019 Petigura et al. 2018 ExoFOP Pope et al. 2016
Teff
(K)
4507.0±110.0 4491±100
4550.000+104.556-146.821
 4648±52
4864.7397+118.7600-159.9900
 4681.0±50.0 --- --- 4550.000±125.688 ---
R✶
(R⦿)
0.68±0.03 0.682±0.014
0.7014850+0.0699719-0.0401990
 0.68±0.01
0.5816783+0.0402338-0.0273933
0.667422 +0.020125-0.019465
0.582 +0.027-0.040
0.70 0.7014849781990051±0.0550855000000000 ---
log g
(log10(cm/s2))
4.6±0.2 ---
4.6015500+0.0743336-0.1239520
 4.64±0.01 --- 4.69±0.1 --- --- 4.6015500±0.0991428 ---
Metallicity
(dex)
-0.040±0.080 [Fe/H] -0.01±0.09 [Fe/H] --- -0.11±0.05 [Fe/H] --- -0.23±0.08 [Fe/H] --- --- --- ---
M✶
(M⦿)
0.69±0.03
0.711+0.022-0.024
0.7170000+0.0933964-0.0774504
 0.73±0.02 ---
0.705681 +0.024262-0.023344
--- --- --- ---
S Index
0.47 --- --- --- --- --- --- --- --- ---
CAII LOG RHK
-4.735 --- --- --- --- --- --- --- --- ---
L✶
(log10(L⦿))
---
-0.733+0.023-0.024
-0.7212229+0.0264551-0.0157005
 ---
-0.76770117+0.00327865-0.00330359
 --- --- --- --- ---
γ
(km/s)
--- --- --- --- 1.0682055806168869±1.2412268596317972 --- --- --- --- ---
ρ✶
(g/cm3)
--- ---
2.9283925+1.1719477-0.5450910
 --- --- --- --- --- --- ---
Age
(Gyr)
---
5.040+6.120-3.590
 --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Akana Murphy et al. 2021 Howard et al. 2025 Livingston et al. 2018 Mayo et al. 2018 Kruse et al. 2019 Petigura et al. 2018 ExoFOP Pope et al. 2016
Teq
(K)
913±23
842.0+31.0-30.0
 861±11 --- --- --- 609.3316493202619 ---
S
(S⨁)
116.2+12.0-11.0
119.0+18.0-16.0
 --- --- --- --- 32.57886480145019 ---
Mp
(M⨁)
6.9±1.8 7.1±1.8 --- --- --- --- --- ---
Mp
(MJup)
0.022±0.006 0.022±0.006 --- --- --- --- --- ---
P
(days)
3.2253993±0.0000024 3.225286±0.000078
3.225338+0.000195-0.000198
3.225423 +0.000067-0.000071
3.225369 +0.000045-0.000044
3.225349 +0.000219-0.000214
--- 3.225
ρ
(g/cm3)
7.2+2.1-2.0
6.5+2.5-1.9
 --- --- --- --- --- ---
Rp
(R⨁)
1.73+0.05-0.04
1.74+0.12-0.05
 1.87±0.14
1.88203097125 +0.186969162067-0.0881845308159
1.593 +0.095-0.197
1.9 +0.4-0.3
3.170539229599872±1.165673700000000 ---
Rp
(RJup)
0.154+0.004-0.004
0.155+0.011-0.004
 0.167±0.012
0.1679035571 +0.0166802714-0.0078672969
0.1421 +0.0085-0.0176
0.17 +0.04-0.03
0.2828570513641684±0.1039946210274053 ---
TC
(days)
2457218.73733+0.00051-0.00055
(BJD)
2457221.9649±0.0011
(BJD)
2457221.96346+0.00265-0.00270
(BJD)
2457218.73787 +0.000970-0.000928
2457218.73785 +0.00057-0.00058
(BJD)
2457221.96412 +0.002872-0.002896
(BJD)
2460777.44189700±0.00355303
(BJD)
2457218.739
(BJD)
δ
(%)
--- --- --- --- 0.0726±0.0012 --- 0.211672966979635±0.028696576000000 0.058
T14
(hours)
2.017+0.049-0.054
 --- --- ---
2.06640+0.03600-0.05520
2.04000+0.10080-0.10080
 3.0241238640637764±0.3496069600000000 1.82688
b
0.25+0.12-0.15
 ---
0.46+0.33-0.30
 --- ---
0.52 +0.31-0.35
--- 0.020
Rp/R✶
0.02346+0.00043-0.00038
 ---
0.0252+0.0027-0.0012
0.025852 +0.002447-0.000948
0.02511 +0.00091-0.00258
0.0245 +0.0032-0.0013
--- 0.0241
a/R✶
12.07+0.26-0.27
 ---
10.83+1.25-3.13
10.656216 +1.635225-3.765645
11.2 +2.6-1.0
--- --- ---
i
(deg)
88.8±0.6 --- ---
87.181780 +2.085382-4.184358
--- --- --- ---
a
(au)
0.0382±0.0004 --- 0.0385±0.0003 --- --- --- --- ---
ω
(deg)
170+130-120
 --- --- --- --- --- --- ---
e
0.02+0.03-0.02
 --- --- --- --- --- --- ---
K
(m/s)
3.8±1.0 --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Akana Murphy et al. 2021 Howard et al. 2025 Kokori et al. 2023 Livingston et al. 2018 Mayo et al. 2018 Kruse et al. 2019 Petigura et al. 2018 Pope et al. 2016
Teq
(K)
694±17 639.0±23.0 --- 653±8 --- --- --- ---
S
(S⨁)
38.6±4.0
39.6+6.1-5.4
 --- --- --- --- --- ---
Mp
(M⨁)
12.4±2.3
12.6+2.3-2.2
 --- --- --- --- --- ---
Mp
(MJup)
0.0390±0.0072
0.0396+0.0072-0.0069
 --- --- --- --- --- ---
P
(days)
7.3744897±0.0000037 7.37442±0.00012 7.3744828±0.0000093
7.374694+0.000306-0.000291
7.374497 +0.000118-0.000125
7.37426±0.00012
7.374689 +0.000354-0.000344
7.374
ρ
(g/cm3)
2.9+0.7-0.6
3.21+0.91-0.74
 --- --- --- --- --- ---
Rp
(R⨁)
2.85+0.10-0.09
2.67+0.12-0.05
 --- 2.78±0.14
2.83685638614 +0.172643379559-0.114231016564
2.45 +0.15-0.23
3.0 +0.6-0.4
---
Rp
(RJup)
0.254+0.009-0.008
0.238+0.011-0.004
 --- 0.248±0.012
0.2530873750 +0.0154022107-0.0101910087
0.219 +0.013-0.021
0.27 +0.05-0.04
---
TC
(days)
2457222.93034±0.00035
(BJD)
2457222.93118±0.00069
(BJD)
2457687.52395±0.00064
(BJD-TDB)
2457222.93041+0.00165-0.00169
(BJD)
2457222.93002 +0.000670-0.000631
2457222.93279±0.00057
(BJD)
2457222.93038 +0.001951-0.001998
(BJD)
2457222.93
(BJD)
a/R✶
20.96+0.46-0.48
 ---
22.1+2.0-4.8
22.20+1.61-4.24
22.106383 +2.037675-4.818062
20.3 +3.9-2.4
--- ---
i
(deg)
87.7±0.6 ---
88.9+0.8-1.3
 ---
88.892870 +0.786617-1.251368
--- --- ---
Rp/R✶
0.03846+0.00089-0.00077
 --- 0.0390±0.0021
0.0376+0.0025-0.0011
0.038968 +0.002060-0.001082
0.0387 +0.0015-0.0024
0.0394 +0.0045-0.0016
0.037832
b
0.49+0.06-0.08
 --- ---
0.38+0.29-0.26
 --- ---
0.48 +0.31-0.33
0.13
T14
(hours)
2.452+0.097-0.081
 --- --- --- ---
2.57280+0.05520-0.06480
2.45040+0.11040-0.07920
 2.31600
δ
(%)
--- --- --- --- --- 0.1739±0.0019 --- 0.1431
a
(au)
0.0662±0.0007 --- --- 0.0668±0.0005 --- --- --- ---
ω
(deg)
170+130-110
 --- --- --- --- --- --- ---
e
0.03+0.06-0.03
 --- --- --- --- --- --- ---
K
(m/s)
5.1±1.0 --- --- --- --- --- --- ---
Print
Known Objects
2 Confirmed Planets
2 K2 Targets
2 2MASS Point Source Catalog
Data Files
2 K2 Time Series
2 Associated Literature Data
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  • False Positive Planet
  • Controversial
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