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K2-277 Overview

K2-277 0.97 R⦿ 5640.28 K
K2-277 b
0.195 RJup

K2-277 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-277
K2-277 b 6.33 d 2.19 R⨁ Transit 2018 Livingston et al. 2018 Confirmed Planet
RA
13h28m03.89s
Dec
-15d56m16.71s
Distance
113.123+0.701-0.691
pc
Parallax
8.8115100±0.0539824 mas
Ecliptic Latitude
-6.23204 deg
Ecliptic Longitude
206.26332 deg
Galactic Latitude
46.02638 deg
Galactic Longitude
315.66347 deg
Total Proper Motion
105.0691656±0.0984227 mas/yr
Proper Motion (RA)
-98.6744000±0.0978756 mas/yr
Proper Motion (Dec)
-36.095600±0.102419 mas/yr
Photometry
mV
10.364±0.008
mTESS
9.66562±0.00620
mJ
9.081±0.034
mH
8.748±0.071
mKs
8.687±0.024
mKep
10.215
mW1
8.630±0.023
mW2
8.675±0.020
mW3
8.649±0.024
mW4
8.418±0.261
mGaia
10.121400±0.000803
mB
11.081±0.111
Abundances
(Hypatia Catalog)
[Fe/H] 0.10±0.01 dex
[C/H] 0.04±0.12 dex
[O/H] 0.02±0.09 dex
[Na/H] -0.07±0.04 dex
[Mg/H] 0.06±0.01 dex
[Al/H] 0.00±0.04 dex
[Si/H] 0.09±0.03 dex
[Ca/H] 0.11±0.06 dex
[Y/H] 0.22±0.08 dex
[BaII/H] 0.11±0.19 dex
Mission
K2 : Observed in Campaign 6
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 Thygesen et al. 2023 TICv8 Livingston et al. 2018 Gaia DR2 Kruse et al. 2019 Mayo et al. 2018 Petigura et al. 2018 ExoFOP Pope et al. 2016 Barros et al. 2016
Teff
(K)
5705.0±100.0 5680.0±120.0
5673.000+140.274-130.171
 5741±65
5640.2750+128.9750-67.9415
 --- 5733.0±50.0 --- 5673.000±135.223 --- ---
L✶
(log10(L⦿))
---
-0.0506+0.0228-0.0220
-0.05170340+0.01709769-0.01430425
 ---
-0.062643940+0.003586293-0.003616165
 --- --- --- --- --- ---
γ
(km/s)
--- --- --- --- 7.516308738197685±0.654583360049487 --- --- --- --- --- ---
R✶
(R⦿)
0.952±0.035
0.9730+0.0380-0.0350
0.97538300+0.04766430-0.05174770
 0.97±0.02
0.974383950+0.023905400-0.043078900
0.974 +0.043-0.024
0.946965 +0.058410-0.032929
1.01 0.9753829836845398±0.0497060000000000 --- ---
Metallicity
(dex)
0.050±0.044 [Fe/H]
0.0780+0.0720-0.0650
[Fe/H] 		--- 0.11±0.05 [Fe/H] --- --- 0.04±0.08 [Fe/H] --- --- --- ---
ρ✶
(g/cm3)
--- 1.5±0.2
1.5314379+0.3823463-0.2841237
6.9360+3.8190-2.8180
 --- --- --- --- --- --- ---
M✶
(M⦿)
0.980±0.040
0.9740+0.0530-0.0580
1.008000+0.114669-0.146234
 1.02±0.03 --- --- --- --- --- --- ---
log g
(log10(cm/s2))
4.45±0.08
4.452+0.041-0.049
4.4631800+0.0711662-0.0859721
 4.48±0.02 --- --- 4.51±0.1 --- 4.4631800±0.0785692 --- ---
Age
(Gyr)
---
4.9+4.8-3.4
 --- --- --- --- --- --- --- --- ---
v sin i
(km/s)
2.3±1.0 --- --- --- --- --- --- --- --- --- ---
S Index
0.186 --- --- --- --- --- --- --- --- --- ---
CAII LOG RHK
-4.875 --- --- --- --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Source Thygesen et al. 2023 Howard et al. 2025 Livingston et al. 2018 Kruse et al. 2019 Mayo et al. 2018 Petigura et al. 2018 ExoFOP Barros et al. 2016 Pope et al. 2016
Teq
(K)
1049.0±15.0 953.0±25.0 958±14 --- --- --- 953.9690748327274 --- ---
S
(S⨁)
---
195.0+22.0-20.0
 --- --- --- --- 195.73035632215132 --- ---
Mp
(M⨁)
--- 7.40±3.30 --- --- --- --- --- --- ---
Mp
(MJup)
--- 0.0233±0.0104 --- --- --- --- --- --- ---
P
(days)
6.326768+0.000015-0.000012
 6.32677±0.00018
6.326763+0.000355-0.000361
 6.32669±0.00012
6.326674 +0.000196-0.000203
6.326796 +0.000395-0.000397
6.326680036819368±0.000035812423000 6.32976960 6.327
ρ
(g/cm3)
--- 4.0±2.0 --- --- --- --- --- --- ---
Rp
(R⨁)
2.19+0.20-0.12
2.23+0.14-0.06
 2.07±0.12
2.16 +0.14-0.27
2.12171155645 +0.227831410578-0.121507095478
2.2 +0.4-0.2
2.290155372161796±2.260206000000000 --- ---
Rp
(RJup)
0.195+0.018-0.011
0.199+0.012-0.005
 0.185±0.011
0.193 +0.012-0.024
0.19 +0.02-0.01
0.20 +0.04-0.02
0.2043143291487509±0.2016424205280325 --- ---
TC
(days)
2457303.4771±0.0010
(BJD-TDB)
2457221.2301±0.0012
(BJD)
2457221.22958+0.00221-0.00217
(BJD)
2457221.23116 +0.00076-0.00072
(BJD)
2457221.22996 +0.001256-0.001246
(BJD)
2457221.22953 +0.002411-0.002472
(BJD)
2458575.15819400±0.00200968
(BJD)
2457227.545974
(BJD)
2457221.228
(BJD)
b
0.53+0.28-0.36
 ---
0.41+0.32-0.28
 --- ---
0.50 +0.31-0.34
--- --- 0.083
Rp/R✶
0.02045+0.00190-0.00074
 ---
0.0196+0.0014-0.0008
0.02028 +0.00097-0.00251
0.020541 +0.001806-0.000935
0.0201 +0.0027-0.0012
--- --- 0.017952
T14
(hours)
1.9656+0.0672-0.0552
 --- ---
1.94400+0.04800-0.06000
 ---
1.82880+0.10080-0.08880
 2.0310601147528766±0.5508015000000001
2.48600+0.21900-0.21900
 1.67496
a/R✶
14.68+0.64-0.70
 ---
24.45+2.50-6.10
22.3 +6.9-2.9
21.901867 +3.291547-7.616262
--- --- --- ---
δ
(%)
0.0418+0.0079-0.0030
 --- ---
0.045 +0.00095-0.00094
--- --- 0.0520800215446204±0.0068601700000000 0.042±0.003 0.0322
ω
(deg)
46.00+96.00-120.00
 --- --- --- --- --- --- --- ---
e
0.52+0.24-0.26
 --- --- --- --- --- --- --- ---
i
(deg)
86.83+1.60-0.96
 --- --- ---
88.685884 +0.968318-2.027290
--- --- --- ---
a
(au)
0.0664+0.0012-0.0013
 --- 0.0675±0.0006 --- --- --- --- --- ---
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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