KELT-9 Overview

HD 195689 B 0.23 R⦿ 3675.00 K
KELT-9 2.18 R⦿ 9435.00 K
KELT-9 b
1.891 RJup
Architecture
KELT-9
HD 195689 B
KELT-9
KELT-9 b
Discovery Data
Host Planet Method Year Reference Disposition
KELT-9 KELT-9 b Transit 2017 Gaudi et al. 2017 Confirmed Planet
KELT-9
  • This reference contains discussion regarding the stellar multiplicity of this system. (Mugrauer 2019)
RA
20h31m27.31s
Dec
+39d56m13.04s
Distance
---
Parallax
---
Ecliptic Latitude
56.07391 deg
Ecliptic Longitude
327.47809 deg
Galactic Latitude
.24494 deg
Galactic Longitude
78.91311 deg
Total Proper Motion
---
Proper Motion (RA)
---
Proper Motion (Dec)
---
Photometry
mV
19.3623±0.0823
mTESS
17.1856000±0.0198877
mJ
14.968±0.080
mH
14.666±0.068
mKs
14.319±0.082
mW1
---
mW2
---
mW3
---
mW4
---
mIc
---
mGaia
18.553600±0.003444
mB
---
mg
30.0±50.0
mi
17.9527000±0.0319048
mr
30.0±50.0
mu
19.548100±0.122998
mz
16.9045000±0.0335091
Source TICv8
Teff
(K)
3675.0±169.0
L
(log10(L⦿))
-2.07102+0.11715-0.16092
ρ
(g/cm3)
23.6143086±1.4930483
M
(M⦿)
0.1967400±0.0237855
R
(R⦿)
0.2273150±0.0139836
log g
(log10(cm/s2))
5.0187000±0.0015507
RA
20h31m26.38s
Dec
+39d56m20.10s
Distance
204.455+1.582-1.558
pc
Parallax
4.8625400±0.0372738 mas
Ecliptic Latitude
56.07698 deg
Ecliptic Longitude
327.4748 deg
Galactic Latitude
.24852 deg
Galactic Longitude
78.91292 deg
Total Proper Motion
27.2235097±0.0684004 mas/yr
Proper Motion (RA)
16.7278000±0.0653597 mas/yr
Proper Motion (Dec)
21.4779000±0.0701807 mas/yr
Photometry
mV
7.55±0.01
mTESS
7.58204±0.00640
mJ
7.458±0.018
mH
7.492±0.021
mKs
7.482±0.020
mW1
7.399±0.029
mW2
7.509±0.021
mW3
7.436±0.044
mW4
7.704±0.486
mIc
---
mGaia
7.576750±0.000333
mB
7.587000±0.130767
mg
---
mi
---
mr
---
mu
---
mz
---
Source TICv8 Hoeijmakers et al. 2019 Gaia DR2 Gaudi et al. 2017 Cannon & Pickering 1918 ExoFOP-TESS TOI Show Candidate Solutions >> << Hide Candidate Solutions
Teff
(K)
9550.000+193.701-130.599
---
9435.000+121.667-249.000
10170±450 --- 9435.0±174.1
γ
(km/s)
--- -17.74±0.11 --- -20.567±0.100 --- ---
M
(M⦿)
2.431000+0.368127-0.285058
1.978±0.023 ---
2.52+0.25-0.20
--- ---
R
(R⦿)
2.2877300+0.0668447-0.0502206
2.178±0.011 ---
2.362+0.075-0.063
--- 2.2877299785614±0.0585327000000
Sp. T
--- --- --- B9.5-A0 A0 ---
L
(log10(L⦿))
1.593519+0.033127-0.017145
--- ---
1.7+0.1-0.1
--- ---
Metallicity
(dex)
--- --- --- -0.030±0.200 [Fe/H] --- ---
v sin i
(km/s)
--- --- --- 111.40±1.27 --- ---
Age
(Gyr)
--- --- --- 0.3 --- ---
ρ
(g/cm3)
0.2862427+0.0473480-0.0403470
--- --- 0.2702±0.0029 --- ---
log g
(log10(cm/s2))
4.1050400+0.0592981-0.0664457
--- --- 4.093±0.014 --- 4.11±0.06
Status
Confirmed Planet
Detected By
Orbital Brightness Modulation, Radial Velocity, Transit
Source Gaudi et al. 2017 Kokori et al. 2023 Ivshina & Winn 2022 Wong et al. 2020 Hoeijmakers et al. 2019 ExoFOP-TESS TOI Show Candidate Solutions >> << Hide Candidate Solutions
a/R
3.153±0.011 3.20±0.02 ---
3.191+0.022-0.025
--- ---
Teq
(K)
4050±180 --- --- --- --- 3446.021057174
b
0.177±0.014 --- ---
0.134+0.040-0.038
--- ---
S
(S)
44900+8100-7200
--- --- --- --- 33326.7304873638
ω
(deg)
90 --- --- --- --- ---
Mp
(M)
915±267 --- --- --- 776±222 ---
Mp
(MJup)
2.88±0.84 --- --- --- 2.44±0.70 ---
e
0 --- --- --- --- ---
i
(deg)
86.79±0.25 86.79±0.25 ---
87.60+0.69-0.73
--- ---
P
(days)
1.4811235±0.0000011 1.48111874±0.00000014 1.48111871±0.00000016 1.4811235±0.0000011 --- 1.48109028542409±0.00000037756180
ρ
(g/cm3)
0.53±0.15 --- --- --- --- ---
Rp
(R)
21.20+0.68-0.59
--- --- --- 19.99±0.10 20.3402421389055±0.5223550000000
Rp
(RJup)
1.891+0.061-0.053
--- --- --- 1.783±0.009 1.81463798388961±0.04660147197863
Rp/R
0.08228±0.00043 0.08228±0.00043 ---
0.0790+0.0018-0.0017
--- ---
K
(m/s)
276±79 --- --- --- --- ---
a
(au)
0.03462+0.00110-0.00093
--- --- --- --- ---
δ
(%)
0.6770±0.0072 --- --- --- --- 0.678851453882957±0.002867935000000
T14
(hours)
3.9158±0.0115 --- --- --- --- 4.15882908243568±0.00582052070000
TC
(days)
2457095.68572±0.00014 2458955.970923±0.000050 2458415.362562±0.000081
2458711.58627+0.00025-0.00024
--- 2458683.45759600±0.00005687
λ
(deg)
-84.8±1.4 --- --- --- --- ---
Literature Time Series (1 File Type, 1 File)
File Type Data Points Filter Reference
Photometric Light Curve     139 Hp (Hipparcos) Hipparcos and Tycho Catalogs
Known Objects
1 Confirmed Planets
6 2MASS Point Source Catalog
Data Files
4 KELT Time Series
1 Associated Literature Data
Known Objects
1 Confirmed Planets
6 2MASS Point Source Catalog
Data Files
4 KELT 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
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