KELT-23 Overview
KELT-23 A
1.00
R⦿
5787.00
K
KELT-23 A b
1.323
RJup
2MASS J15283577+6621288
- Architecture
- KELT-23
- KELT-23 A
- 2MASS J15283577+6621288
Discovery Data
| Host | Planet | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|---|
| KELT-23 A | KELT-23 A b | 2.26 d | 14.83 R⨁ | Transit | 2019 | Johns et al. 2019 | Confirmed Planet |
KELT-23
- This reference contains discussion regarding the stellar multiplicity of this system. (Johns et al. 2019)
- RA
- 15h28m35.19s
- Dec
- +66d21m31.35s
- Distance
-
126.261+0.352-0.351pc
- Parallax
- 7.891240±0.021899 mas
- Ecliptic Latitude
- 75.11199 deg
- Ecliptic Longitude
- 163.28248 deg
- Galactic Latitude
- 43.94313 deg
- Galactic Longitude
- 102.28211 deg
- Total Proper Motion
- 12.2248073±0.0409703 mas/yr
- Proper Motion (RA)
- 0.4340300±0.0393233 mas/yr
- Proper Motion (Dec)
- -12.2171000±0.0409723 mas/yr
- Photometry
-
mV10.308±0.005
-
mTESS9.76703±0.00610
-
mJ9.208±0.032
-
mH8.951
-
mKs8.904
-
mW18.754±0.022
-
mW28.789±0.020
-
mW38.766±0.022
-
mW48.564±0.202
-
mGaia10.182000±0.000419
-
mB10.902±0.079
-
mg10.647±0.026
-
mi9.980±0.070
-
mr10.114±0.080
| Source | Giacalone et al. 2025 | TICv8 | Johns et al. 2019 | Gaia DR2 | ExoFOP | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
5899±49 |
5898.000+110.813-139.777
|
5899±49 |
5787.0+117.2-103.1
|
5787.0±109.9 | ||
|
L✶
(log10(L⦿))
|
--- |
0.0045015041+0.0143465630-0.0105178346
|
0.03383+0.02002-0.01973
|
0.004505372+0.002166430-0.002177291
|
--- | ||
|
γ
(km/s)
|
--- | --- | -15.224±0.100 | -14.89197484305739±0.37922088149231 | --- | ||
|
R✶
(R⦿)
|
0.9960±0.0150 |
0.96270600+0.04378940-0.04872810
|
0.9960±0.0150 |
0.99999620+0.03658850-0.03930660
|
0.960±0.050 | ||
|
Metallicity
(dex)
|
--- | --- |
-0.105+0.078-0.077
[Fe/H]
|
--- | --- | ||
|
v sin i
(km/s)
|
0.468+0.044-0.043
|
--- | 2.42±0.50 | --- | --- | ||
|
Age
(Gyr)
|
6.40+3.50-3.32
|
--- |
6.4+3.5-3.2
|
--- | --- | ||
|
ρ✶
(g/cm3)
|
--- |
1.6922850+0.3976288-0.3078990
|
1.349+0.090-0.083
|
--- | --- | ||
|
M✶
(M⦿)
|
0.9440+0.0600-0.0540
|
1.071000+0.139784-0.135593
|
0.9440+0.0600-0.0540
|
--- | --- | ||
|
log g
(log10(cm/s2))
|
--- |
4.5008700+0.0929215-0.0611768
|
4.417+0.026-0.025
|
--- | 4.50±0.08 | ||
|
Sp. T
|
--- | --- | G2 V | --- | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Johns et al. 2019 | Giacalone et al. 2025 | Kokori et al. 2023 | Ivshina & Winn 2022 | Maciejewski 2020 | ExoFOP | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|
|
a/R✶
|
7.13+0.16-0.15
|
7.615±0.021 |
7.556+0.041-0.045
|
--- |
7.556+0.041-0.045
|
--- | ||
|
i
(deg)
|
85.37+0.31-0.30
|
86.052+0.051-0.050
|
85.96+0.11-0.10
|
--- |
85.96+0.11-0.10
|
--- | ||
|
P
(days)
|
2.255251+0.000011-0.000012
|
2.255287666±0.000000051 | 2.25528745±0.00000018 | 2.25528739±0.00000038 | 2.25528783±0.00000068 | 2.2552845±0.0000019 | ||
|
Rp/R✶
|
0.1365±0.0010 | 0.13300±0.00026 | 0.1320±0.0006 | --- | 0.1320±0.0006 | --- | ||
|
δ
(%)
|
1.864±0.028 | --- | --- | --- | 1.743±0.015 | 2.0820000±0.0410348 | ||
|
T14
(hours)
|
2.3810±0.0221 | --- | --- | --- | 2.278±0.017 | 2.050±0.036 | ||
|
TC
(days)
|
2458140.3792+0.0027-0.0029
(BJD-TDB)
|
2459389.816371±0.000016
(BJD)
|
2458918.461247±0.000021
(BJD-TDB)
|
2458785.399304±0.000053
(BJD-TDB)
|
2458140.38698±0.00020 |
2460352.8234490±0.0003867
(BJD)
|
||
|
b
|
0.576+0.024-0.027
|
0.5243±0.0053 | --- | --- | --- | --- | ||
|
λ
(deg)
|
--- |
180.4+4.9-4.7
|
--- | --- | --- | --- | ||
|
Teq
(K)
|
1561±20 | --- | --- | --- | --- | 1348 | ||
|
S
(S⨁)
|
991.1830+51.4330-49.2290
|
--- | --- | --- | --- | 549.715 | ||
|
Rp
(R⨁)
|
14.83±0.28 | --- | --- | --- | --- | 14.688000±0.722948 | ||
|
Rp
(RJup)
|
1.323±0.025 | --- | --- | --- | --- | 1.3103778±0.0644972 | ||
|
Tp
(days)
|
2458007.3194+0.0027-0.0028
(BJD-TDB)
|
--- | --- | --- | --- | --- | ||
|
Mp
(M⨁)
|
298+15-14
|
--- | --- | --- | --- | --- | ||
|
Mp
(MJup)
|
0.938+0.048-0.044
|
--- | --- | --- | --- | --- | ||
|
Mp sin i
(M⨁)
|
297+15-14
|
--- | --- | --- | --- | --- | ||
|
Mp sin i
(MJup)
|
0.935+0.048-0.044
|
--- | --- | --- | --- | --- | ||
|
e
|
0 | --- | --- | --- | --- | --- | ||
|
ρ
(g/cm3)
|
0.503+0.039-0.036
|
--- | --- | --- | --- | --- | ||
|
K
(m/s)
|
150.6+4.4-4.3
|
--- | --- | --- | --- | --- | ||
|
a
(au)
|
0.03302+0.00068-0.00064
|
--- | --- | --- | --- | --- |
- RA
- 15h28m35.79s
- Dec
- +66d21m28.58s
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- 75.11269 deg
- Ecliptic Longitude
- 163.28654 deg
- Galactic Latitude
- 43.94283 deg
- Galactic Longitude
- 102.28041 deg
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV16.3363±0.0734
-
mTESS14.5581±0.0203
-
mJ12.548±0.077
-
mH9.924
-
mKs9.841
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mGaia15.520900±0.001376
-
mB10.87
-
mg---
-
mi---
-
mr---
| Source | Giacalone et al. 2025 |
|---|---|
|
Sp. T
|
M V |
- Known Objects
- 1 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
- Known Objects
- 1 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 1 Associated Literature Data
-
A Hot Jupiter with a Retrograde Orbit Around A Sun-like Star and a Toy Model of Hot Jupiters in Wide Binary Star Systems
Giacalone et al. 2025 | Reference Overview -
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
TESS Transit Timing of Hundreds of Hot Jupiters
Ivshina & Winn 2022 | Reference Overview -
Search for Planets in Hot Jupiter Systems with Multi-Sector TESS Photometry. I. No Companions in Planetary Systems KELT-18, KELT-23, KELT-24, Qatar-8, WASP-62, WASP-100, WASP-119, and WASP-126
Maciejewski 2020 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones
Johns et al. 2019 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
ExoFOP TOI Table
ExoFOP -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview
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- False Positive Planet
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- Aliases
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