NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

K2-128 Overview

K2-128 0.58 R⦿ 4730.76 K
K2-128 b
0.127 RJup
Architecture
K2-128
K2-128
K2-128 b
Other Data
Bibliography 8
Nearby Data 5
Discovery Data
Host Planet Method Year Reference Disposition
K2-128 K2-128 b Transit 2017 Dressing et al. 2017 Confirmed Planet
RA
13h37m45.04s
Dec
-08d35m49.51s
Distance
114.637+0.930-0.915
pc
Parallax
8.6952000±0.0696789 mas
Ecliptic Latitude
1.4648 deg
Ecliptic Longitude
205.77533 deg
Galactic Latitude
52.55328 deg
Galactic Longitude
321.98145 deg
Total Proper Motion
4.5895303±0.1333278 mas/yr
Proper Motion (RA)
1.411710±0.129119 mas/yr
Proper Motion (Dec)
-4.36702±0.13376 mas/yr
Photometry
mV
12.58±0.08
mTESS
11.5155±0.0061
mJ
10.491±0.024
mH
9.965±0.026
mKs
9.815±0.021
mKep
12.256
mW1
9.760±0.023
mW2
9.803001±0.020000
mW3
9.771±0.046
mW4
8.726±0.390
mGaia
12.220400±0.000672
mB
13.749±0.066
Mission
K2 : Observed in Campaigns 6, 17
Tools
ExoFOP Target Overview Page
IRSA Finding Chart
K2 Names
K2 Planets and Candidates
K2 Targets
Stellar Hosts
K2 Time Series
Source TICv8 Gaia DR2 Mayo et al. 2018 Dressing et al. 2017 Kruse et al. 2019 Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
4470.0000+159.7820-93.9198
4730.765+135.235-148.795
 4621.0±50.0
4469.507813+171.971329-145.152344
 ---
L✶
(log10(L⦿))
-0.7660274+0.0247574-0.0249226
-0.82159080+0.00442279-0.00446827
 --- --- ---
γ
(km/s)
--- -13.21181381007691±0.64001963541922 --- --- ---
R✶
(R⦿)
0.6902780+0.0624799-0.0496206
0.5780887+0.0381553-0.0316857
0.650657 +0.020996-0.017275
0.777569+0.076202-0.060808
0.578 +0.032-0.038
ρ✶
(g/cm3)
3.0047769+1.0190196-0.8151658
 --- --- --- ---
M✶
(M⦿)
0.7010000+0.0725708-0.0928252
 ---
0.686997 +0.023289-0.021809
0.711248±0.071125 ---
log g
(log10(cm/s2))
4.6057400+0.0925588-0.1110800
 --- 4.7±0.1 --- ---
Metallicity
(dex)
--- --- -0.26±0.08 [Fe/H] --- ---
Print
Status
Confirmed Planet
Detected By
Transit
Tools
Transit Prediction Service
K2 Names
K2 Planets and Candidates
Transit
Source Dressing et al. 2017 Mayo et al. 2018 Kruse et al. 2019 Show Candidate Solutions >> << Hide Candidate Solutions
a/R✶
15.46+1.38-1.40
20.472341 +2.942107-7.087836
21.2 +7.2-3.2
S
(S⨁)
68.8+11.1-9.7
 --- ---
ω
(deg)
62.5500000+71.2833890-113.7217650
 --- ---
e
0.230000+0.220222-0.193710
 --- ---
i
(deg)
87.40+1.08-0.66
88.697096 +0.957674-2.201293
---
P
(days)
5.675819+0.000411-0.000414
5.675814 +0.000411-0.000427
5.67556 +0.00029-0.00026
Rp
(R⨁)
1.42+0.16-0.13
1.20312295431 +0.101992840953-0.0739935159164
1.117 +0.088-0.161
Rp
(RJup)
0.127+0.014-0.012
0.1073354407 +0.0090991918-0.0066012593
0.09965 +0.0079-0.0144
Rp/R✶
0.016752+0.001020-0.000861
0.016952 +0.001329-0.000940
0.0177 +0.0010-0.0023
a
(au)
0.056±0.002 --- ---
TC
(days)
2457255.503±0.002
2457221.44809 +0.003420-0.003156
2457221.4503 +0.0021-0.0023
δ
(%)
--- --- 0.0332±0.0017
T14
(hours)
--- ---
1.80480+0.09120-0.10800
Print
Known Objects
1 Confirmed Planets
2 K2 Targets
1 2MASS Point Source Catalog
Data Files
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.