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K2-25 Overview

  • Star: K2-25
    • Stellar Radius: 0.29 Solar Radius
    • Stellar Effective Temperature: 3207.00 K
    • Planet: K2-25 b
      • Disposition Confirmed
      • Planet Radius 0.306 Jupiter Radius

K2-25 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
K2-25
K2-25 b 3.48 d 3.44 R⨁ Transit 2015 Mann et al. 2016 Confirmed Planet
K2-25 b
RA
04h13m05.74s
Dec
+15d14m51.73s
Distance
44.9565+0.1664-0.1653
pc
Parallax
22.2153000±0.0814423 mas
Ecliptic Latitude
-5.82461 deg
Ecliptic Longitude
64.13791 deg
Galactic Latitude
-25.29268 deg
Galactic Longitude
178.25572 deg
Total Proper Motion
123.5167322±0.2208453 mas/yr
Proper Motion (RA)
122.148000±0.222611 mas/yr
Proper Motion (Dec)
-18.337100±0.118445 mas/yr
Photometry
mV 16.21±0.20
mTESS 13.0275000±0.0075402
mJ 11.303±0.021
mH 10.732±0.020
mKs 10.444±0.019
mKep 14.528
mW1 10.275±0.024
mW2 10.086±0.020
mW3 9.936±0.057
mW4 8.301
mGaia 14.381700±0.000951
mB 17.760±0.289
mg 16.7256000±0.0050097
mi 13.8731000±0.0004745
mr 15.2717000±0.0049562
mu 19.7432000±0.0334907
mz 12.8154000±0.0051572
Mission
K2: Observed in Campaign 4
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 Gaidos et al. 2020 Stefansson et al. 2020 Thao et al. 2020 TICv8 Gaia DR2 Mann et al. 2016 Rizzuto et al. 2017 ExoFOP
Teff
(K)
--- 3207±58 3207±58 3204.0±157.0
3740.8098+692.1970-509.4770
 3180±60 --- 3204±157
L✶
(log10(L⦿))
---
-2.09+0.02-0.02
-2.09+0.02-0.02
-2.09709+0.09948-0.12926
 ---
-2.1+0.1-0.1
 --- ---
ρ✶
(g/cm3)
--- 14.6±1.2
14.762+1.042-1.036
 15.3128284±0.2106562 ---
15.9+2.4-2.1
 --- ---
M✶
(M⦿)
--- 0.2634±0.0077 0.2634±0.0077 0.2654940±0.0201666 --- 0.294±0.021 --- ---
R✶
(R⦿)
--- 0.2932±0.0093 0.2932±0.0093 0.2902160±0.0086926 --- 0.295±0.020 --- 0.290215998888016±0.008692570000000
v sin i
(km/s)
7.71±0.29 8.8±0.6 --- --- --- 7.8±0.5 --- ---
Metallicity
(dex)
--- 0.15±0.03 [Fe/H] --- --- --- 0.15±0.03 [Fe/H] --- ---
γ
(km/s)
--- --- --- --- --- 38.64±0.15 --- ---
Sp. T
--- M4.5 V --- --- --- M4.5 --- ---
log g
(log10(cm/s2))
--- 4.944±0.031 --- 4.9366800±0.0070283 --- --- --- 4.93668000±0.00702832
Age
(Gyr)
---
0.730+0.050-0.052
 --- --- --- --- --- ---
Prot
(days)
--- 1.878±0.005 --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
K2 Names
K2 Planets and Candidates
Transit
Atmospheric Spectroscopy
Source Stefansson et al. 2020 Kokori et al. 2023 Kokori et al. 2022 Gaidos et al. 2020 Thao et al. 2020 Mann et al. 2016 Rizzuto et al. 2017 ExoFOP
Teq
(K)
494.0±11.0 --- --- --- --- --- --- 447.814306536643
S
(S⨁)
9.910+0.950-0.860
 --- --- --- --- --- --- 9.50414072252162
P
(days)
3.48456408+0.00000060-0.00000050
 3.48456248±0.00000064 3.4845627±0.0000009 ---
3.48456322+0.00000097-0.00000095
3.484552+0.000031-0.000037
 3.4843 3.48455432425138±0.00000462407160
Rp
(R⨁)
3.44±0.12 --- --- ---
3.4492+0.1099-0.1110
3.43+0.95-0.31
 --- 4.20831932461443±1.28492670000000
Rp
(RJup)
0.306±0.011 --- --- ---
0.30772+0.00980-0.00990
0.306+0.085-0.028
 --- 0.375441749544134±0.114633679403159
δ
(%)
1.155+0.038-0.039
 --- --- ---
1.1635+0.0096-0.0100
 --- 0.66 1.37055317991715±0.10634423000000
T14
(hours)
0.7637+0.0086-0.0089
 --- --- --- ---
0.79+0.09-0.17
 --- 0.915860065105211±0.064584024000000
TC
(days)
2458515.64206+0.00010-0.00009
(BJD-TDB)
2457651.471616±0.000062
(BJD-TDB)
2457620.11054±0.00008
(BJD-TDB)
--- 2457062.57965±0.00020
(BJD)
2457062.57935+0.00049-0.00024
(BJD)
2457062.58461
(BJD)
2459501.77517600±0.00043977
(BJD)
a/R✶
21.09+0.57-0.59
 25.1±4.1 --- --- 25.85±0.39 --- --- ---
ω
(deg)
120.0+12.0-14.0
62.0+44.0-39.0
 --- ---
98.0+59.0-68.0
62.0+44.0-39.0
 --- ---
e
0.428+0.050-0.049
0.27+0.16-0.21
 --- ---
0.270+0.163-0.064
0.27+0.16-0.21
 --- ---
i
(deg)
87.16+0.18-0.21
88.3+1.2-0.7
 --- ---
88.164+0.085-0.100
88.3+1.2-0.7
 --- ---
Rp/R✶
0.1075±0.0018 0.106±0.029 --- ---
0.10787+0.00044-0.00049
0.1065+0.0286-0.0065
 --- ---
b
0.628+0.032-0.037
 --- --- ---
0.646+0.017-0.020
0.600+0.290-0.420
 --- ---
Mp
(M⨁)
24.5+5.7-5.2
 --- --- --- --- --- --- ---
Mp
(MJup)
0.0771+0.0179-0.0164
 --- --- --- --- --- --- ---
K
(m/s)
27.9+6.5-6.0
 --- --- --- --- --- --- ---
a
(au)
0.0287±0.0012 --- --- --- --- --- --- ---
λ
(deg)
3.0±16.0 --- ---
-1.7+5.8-3.7
 --- --- --- ---
ψ
(deg)
17+11-8
 --- --- --- --- --- --- ---
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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