IPAC Logo
NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

K2-101 Overview

  • Star: K2-101
    • Stellar Radius: 0.77 Solar Radius
    • Stellar Effective Temperature: 4942.00 K
    • Planet: K2-101 b
      • Disposition Confirmed
      • Planet Radius 0.178 Jupiter Radius

K2-101 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-101
K2-101 b 14.68 d 2 R⨁ Transit 2016 Mann et al. 2017 Confirmed Planet
K2-101 b
  • Planet parameter values drawn from Table 3, "External stellar density prior" model in ref. (Mann et al. 2017)
RA
08h41m22.54s
Dec
+18d56m01.75s
Distance
188.330+2.128-2.082
pc
Parallax
5.2818200±0.0588946 mas
Ecliptic Latitude
.62624 deg
Ecliptic Longitude
127.7582 deg
Galactic Latitude
32.44357 deg
Galactic Longitude
206.8287 deg
Total Proper Motion
38.6976148±0.0941981 mas/yr
Proper Motion (RA)
-36.593000±0.097272 mas/yr
Proper Motion (Dec)
-12.5880000±0.0624468 mas/yr
Photometry
mV 12.892±0.114
mTESS 12.0339±0.0065
mJ 11.162±0.023
mH 10.678±0.022
mKs 10.536±0.019
mKep 12.619
mW1 10.482±0.023
mW2 10.579±0.021
mW3 10.297±0.096
mW4 8.403
mGaia 12.66190±0.00047
mB 13.963±0.045
mg 15.6998000±0.0137498
mi 12.4292000±0.0009189
mr 12.67440±0.00142
mu 16.2661000±0.0081971
mz 13.5760000±0.0096604
Abundances
(Hypatia Catalog)
[Fe/H] 0.05±0.04 dex
[Mg/H] 0.25±0.07 dex
Mission
K2: Observed in Campaigns 5, 16, 18
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source Castro-González et al. 2022 TICv8 Gaia DR2 Mayo et al. 2018 Mann et al. 2017 Luo et al. 2018 Kruse et al. 2019 Rizzuto et al. 2017 Libralato et al. 2016 Barros et al. 2016
Teff
(K)
4927+47-46
4695.4100+84.4928-126.1730
4968.660+121.840-150.738
 4942.0±53.0 4819±45 --- --- --- --- ---
Metallicity
(dex)
0.070±0.070 [Fe/H] 0.1057140±0.0353441 [M/H] --- 0.14±0.08 [Fe/H] 0.14±0.04 [Fe/H] --- --- --- --- ---
M✶
(M⦿)
0.82+0.02-0.03
0.7500000+0.0909230-0.0795882
 ---
0.833034 +0.019814-0.023858
0.80±0.06 --- --- --- --- ---
R✶
(R⦿)
0.76±0.01
0.8007650+0.0678312-0.0338523
0.6822776+0.0433605-0.0322694
0.769722 +0.021844-0.015345
0.73±0.03 ---
0.682 +0.032-0.043
--- 0.725 ---
log g
(log10(cm/s2))
4.59+0.01-0.02
4.5061200+0.0879221-0.0880172
 --- 4.66±0.1 --- --- --- --- --- ---
L✶
(log10(L⦿))
---
-0.5516007+0.0175886-0.0205441
-0.59242590+0.00641110-0.00650711
 ---
-0.5948+0.0156-0.0162
 --- --- --- --- ---
γ
(km/s)
--- --- 34.71529550170117±0.89483450792571 --- 34.31±0.17 --- --- --- --- ---
v sin i
(km/s)
--- --- --- ---
3.9+0.9-0.7
 --- --- --- --- ---
Age
(Gyr)
--- --- --- --- 0.790±0.030 --- --- --- --- ---
ρ✶
(g/cm3)
---
2.0592628+0.5465770-0.5305162
 --- ---
2.92+0.38-0.39
 --- --- --- --- ---
Prot
(days)
--- --- --- --- 10.6±0.6 --- --- --- --- ---
Sp. T
--- --- --- --- --- K3 --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Planetary Systems
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Castro-González et al. 2022 Mayo et al. 2018 Mann et al. 2017 Kruse et al. 2019 Rizzuto et al. 2017 Libralato et al. 2016 Barros et al. 2016
P
(days)
14.6762429+0.0000201-0.0000203
14.677214 +0.000847-0.000825
14.677286+0.000828-0.000804
14.67665 +0.00058-0.00060
14.6843 14.675828±0.000670 14.66146147
δ
(%)
--- --- --- 0.0749±0.0021 0.05 0.0638±0.0033 0.072±0.007
TC
(days)
2457152.6849877+0.0011205-0.0011677
(BJD)
2457152.68204 +0.002207-0.002280
2457152.68135+0.00223-0.00230
(BJD)
2457152.6838±0.0015
(BJD)
2457137.98088
(BJD)
2457152.686540±0.001737
(BJD)
2457152.715844
(BJD)
a/R✶
31.82+2.67-6.79
28.727557 +5.667401-12.497744
32.5+2.3-2.4
30.6 +8.6-3.9
--- --- ---
b
0.41+0.29-0.28
 ---
0.35+0.25-0.23
 --- --- --- ---
ω
(deg)
--- ---
0.00+152.00-118.00
 --- --- --- ---
e
--- ---
0.10+0.18-0.08
 --- --- --- ---
i
(deg)
---
88.857176 +0.816777-1.997734
89.4+0.4-0.5
 --- --- 89.26±0.07 ---
Rp
(R⨁)
2.00+0.14-0.07
2.19420598159 +0.309840781401-0.124351024939
2.0±0.1
1.94 +0.13-0.25
--- 1.85 ---
Rp
(RJup)
0.178+0.012-0.006
0.1957539461 +0.0276421430-0.0110938554
0.18±0.01
0.173 +0.012-0.022
 --- 0.165 ---
Rp/R✶
0.0240+0.0017-0.0007
0.026134 +0.003615-0.001386
0.0247+0.0012-0.0007
0.0261 +0.0013-0.0030
--- 0.0233±0.0004 ---
T14
(hours)
--- ---
3.23+0.56-0.63
3.33600+0.09600-0.12000
 --- ---
5.34700+0.43500-0.43500
Teq
(K)
618+9-25
 --- --- --- --- --- ---
a
(au)
0.1124+0.0095-0.0239
 --- --- --- --- --- ---
Print
Known Objects
1 Confirmed Planets
3 K2 Targets
2 2MASS Point Source Catalog
Data Files
1 KELT Praesepe Time Series
2 K2 Time Series
1 Associated Literature Data
  • System
  • Star
  • Confirmed
  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
  • External Link
  • Search
  • Browse
  • Download

NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.