exoclock

KELT-23Ab (LOW)

Discovered by: Johns et al. 2019

The Star
Simbad
GAIA
2MASS
BD+66 911
DR2 1644692064543192704
J15283520+6621314
RA 15:28:35.1926 DEC +66:21:31.544
Parallax
7.891 mas
P.M. RA
0.434 mas/y
P.M. DEC
-12.217 mas/y
MagV
10.31
MagR
10.24
MagI*
9.629
MagJ
9.208
MagH
8.951
MagK
8.904
MagG
10.182
MagGBP
10.512
MagGRP
9.722
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2458918.461247 ± 2.1e-05 BJDTDB
Period
2.25528745 ± 1.8e-07 days

Transit Parameters
Maciejewski 2020
Rp/Rs
0.132 ± 0.0006
a/Rs
7.556 +0.041 -0.045
i
85.96 +0.11 -0.1 deg
e
-
ω
- deg
DepthR*
21.47 mmag
Duration*
2.29 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Johns et al. 2019
Teff
5899.0 +49.0 -49.0 K
Log(g)
4.42 +0.03 -0.03 cm/s2
Fe/H
-0.105 +0.078 -0.077 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 89 (26)
O-C 0.011 ± 0.068 minutes
ExoClock Observations (Recent) 27 (26)
Space Observations (Recent) 62 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.132846 ± 8.8e-05

KELT-23Ab


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
KELT-23Ab (LOW)
2022-09-22
Guillaume Biesse
MOOL - Micro Ob' of LYON
Astro Professional ED 102/712
Moravian G2-4000 / Clear / 30.0
-1.42 ± 1.44
KELT-23Ab (LOW)
2022-07-23
Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave 2
ZWO ASI6200 / R / 120.0
0.1 ± 0.86
KELT-23Ab (LOW)
2022-07-14
Dominique DANIEL
La Montjoie
Celestron C8
Camera CMOS ZWO ASI2600MC pro (color) / Clear / 60.0
1.47 ± 1.3
KELT-23Ab (LOW)
2022-07-14
Salvador Miquel Romero
Vedat Observatory
Meade SN10 F/4.1
SBIG ST8XME / Clear / 120.0
0.32 ± 1.58
KELT-23Ab (LOW)
2022-07-14
Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0
-1.41 ± 0.58
KELT-23Ab (LOW)
2022-05-15
Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0
0.98 ± 0.72
KELT-23Ab (LOW)
2022-05-06
Emmanuel THIERS
Astronomade Tour-de-Faure
Skywatcher 120ed Equinox
Zwo Asi 071 Pro MC / Clear / 120.0
7.25 ± 1.44
KELT-23Ab (LOW)
2022-05-06
Simon Dawes
William James II Observatory
Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Clear / 15.0
-0.67 ± 0.72
KELT-23Ab (LOW)
2022-04-27
Leon Bewersdorff
Observatory Kipshoven (BLEW)
GSO Ritchey-Chrétien
QHY268M-PH / V / 140.0
-0.02 ± 1.01
KELT-23Ab (LOW)
2022-04-20
Thomas Sprecher
SHED OBSERVATORY
RC8 WITH .8FR
ASI533 MC PRO / Clear / 60.0
-0.51 ± 1.58
KELT-23Ab (LOW)
2022-04-18
Pieter Vuylsteke
Hoegaarden_TS130_2600mc
TS130
ZWO 2600mc color camera / V / 120.0
2.06 ± 1.15
KELT-23Ab (LOW)
2022-04-18
Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 15.0
-3.12 ± 2.3
KELT-23Ab (LOW)
2022-03-21
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0
1.27 ± 1.44
KELT-23Ab (LOW)
2022-03-21
Harri Kiiskinen
Harri Kiiskinen
Takahashi FSQ-85ED
QHY163M / R / 60.0
0.55 ± 0.86
KELT-23Ab (LOW)
2022-03-21
Massimiliano Zulian
La Torre Del Sole
Ritchey-Chretien GSO
Moravian G2 4000 / rpr / 30.0
-0.6 ± 1.15
KELT-23Ab (LOW)
2022-02-25
Simon Dawes
William James II Observatory
Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 60.0
0.21 ± 0.58
KELT-23Ab (LOW)
2022-02-22
Stefano Lora
MarSEC
Ritchey Chrétien
Moravian G2 Mark II / R / 70.0
4.51 ± 2.45
KELT-23Ab (LOW)
2022-02-22
David Wright
Yorick (private observatory)
10" Ritchey-Chretien
QSI 683WSG-8 / R / 90.0
0.77 ± 0.72
KELT-23Ab (LOW)
2022-02-07
Ian Sharp
Ham Observatory
Celestron C9.25 Edge HD
Starlight Xpress Trius Pro SX694 / R / 45.0
-0.23 ± 0.58
KELT-23Ab (LOW)
2022-02-04
Pete Mills
Walcott Observatory
Meade SCT
ZWO ASI294MM PRO / Clear / 30.0
-0.1 ± 1.15
KELT-23Ab (LOW)
2022-01-29
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 180.0
-1.02 ± 1.58
KELT-23Ab (LOW)
2022-01-20
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 30.0
-2.1 ± 0.72
KELT-23Ab (LOW)
2022-01-02
Giovanni Battista Casalnuovo
FSO Filzi School Observatory
RC14" f/8
ASI 294 PRO / Clear / 50.0
0.64 ± 1.15
KELT-23Ab (LOW)
2021-12-30
Sebastien Brouillard
AstroQueyras
RC500
STX16803 / R / 120.0
1.48 ± 2.02
KELT-23Ab (LOW)
2021-12-23
Sebastien Brouillard
AstroQueyras
RC500
STX16803 / R / 120.0
-0.87 ± 1.01
KELT-23Ab (LOW)
2021-12-14
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0
-3.54 ± 1.3
KELT-23Ab (LOW)
2021-05-25
Mario Billiani
starbase
Unistellar eVscope
Sony IMX224 / Clear / 119.0
3.62 ± 1.87

Space Observations

Planet
Observation Date
Mission O-C
minutes
KELT-23Ab (LOW)
2021-08-19
TESS-0.0 ± 0.22
KELT-23Ab (LOW)
2021-08-17
TESS0.11 ± 0.26
KELT-23Ab (LOW)
2021-08-15
TESS-0.05 ± 0.23
KELT-23Ab (LOW)
2021-08-12
TESS-0.1 ± 0.24
KELT-23Ab (LOW)
2021-08-10
TESS-0.06 ± 0.24
KELT-23Ab (LOW)
2021-08-08
TESS-0.26 ± 0.23
KELT-23Ab (LOW)
2021-08-03
TESS-0.03 ± 0.26
KELT-23Ab (LOW)
2021-08-01
TESS0.11 ± 0.24
KELT-23Ab (LOW)
2021-07-30
TESS0.11 ± 0.26
KELT-23Ab (LOW)
2021-07-28
TESS0.32 ± 0.23
KELT-23Ab (LOW)
2021-07-25
TESS0.13 ± 0.27
KELT-23Ab (LOW)
2020-04-15
TESS0.37 ± 0.24
KELT-23Ab (LOW)
2020-04-12
TESS0.29 ± 0.23
KELT-23Ab (LOW)
2020-04-10
TESS-0.25 ± 0.24
KELT-23Ab (LOW)
2020-04-08
TESS0.21 ± 0.23
KELT-23Ab (LOW)
2020-04-06
TESS-0.2 ± 0.24
KELT-23Ab (LOW)
2020-03-30
TESS0.12 ± 0.24
KELT-23Ab (LOW)
2020-03-28
TESS0.38 ± 0.24
KELT-23Ab (LOW)
2020-03-23
TESS-0.46 ± 0.24
KELT-23Ab (LOW)
2020-02-16
TESS-0.03 ± 0.24
KELT-23Ab (LOW)
2020-02-14
TESS0.28 ± 0.24
KELT-23Ab (LOW)
2020-02-11
TESS0.02 ± 0.26
KELT-23Ab (LOW)
2020-02-09
TESS-0.43 ± 0.23
KELT-23Ab (LOW)
2020-02-07
TESS0.14 ± 0.24
KELT-23Ab (LOW)
2020-02-02
TESS0.05 ± 0.24
KELT-23Ab (LOW)
2020-01-31
TESS-0.35 ± 0.23
KELT-23Ab (LOW)
2020-01-29
TESS-0.29 ± 0.23
KELT-23Ab (LOW)
2020-01-27
TESS0.32 ± 0.26
KELT-23Ab (LOW)
2020-01-24
TESS-0.13 ± 0.24
KELT-23Ab (LOW)
2020-01-22
TESS-0.27 ± 0.26
KELT-23Ab (LOW)
2019-10-28
TESS-0.27 ± 0.29
KELT-23Ab (LOW)
2019-10-26
TESS0.33 ± 0.24
KELT-23Ab (LOW)
2019-10-24
TESS0.11 ± 0.24
KELT-23Ab (LOW)
2019-10-22
TESS-0.24 ± 0.27
KELT-23Ab (LOW)
2019-10-15
TESS-0.19 ± 0.24
KELT-23Ab (LOW)
2019-10-13
TESS-0.04 ± 0.24
KELT-23Ab (LOW)
2019-10-10
TESS0.12 ± 0.22
KELT-23Ab (LOW)
2019-10-08
TESS-0.3 ± 0.24
KELT-23Ab (LOW)
2019-10-04
TESS0.38 ± 0.24
KELT-23Ab (LOW)
2019-10-01
TESS0.03 ± 0.23
KELT-23Ab (LOW)
2019-09-29
TESS-0.07 ± 0.23
KELT-23Ab (LOW)
2019-09-27
TESS-0.22 ± 0.24
KELT-23Ab (LOW)
2019-09-20
TESS0.26 ± 0.27
KELT-23Ab (LOW)
2019-09-18
TESS0.27 ± 0.24
KELT-23Ab (LOW)
2019-09-16
TESS-0.48 ± 0.26
KELT-23Ab (LOW)
2019-09-13
TESS-0.27 ± 0.23
KELT-23Ab (LOW)
2019-09-07
TESS0.15 ± 0.32
KELT-23Ab (LOW)
2019-09-04
TESS-0.21 ± 0.26
KELT-23Ab (LOW)
2019-09-02
TESS0.16 ± 0.26
KELT-23Ab (LOW)
2019-08-31
TESS0.01 ± 0.23
KELT-23Ab (LOW)
2019-08-22
TESS0.48 ± 0.27
KELT-23Ab (LOW)
2019-08-19
TESS-0.1 ± 0.24
KELT-23Ab (LOW)
2019-08-17
TESS0.22 ± 0.26
KELT-23Ab (LOW)
2019-08-10
TESS0.09 ± 0.24
KELT-23Ab (LOW)
2019-08-08
TESS0.1 ± 0.24
KELT-23Ab (LOW)
2019-08-06
TESS0.04 ± 0.23
KELT-23Ab (LOW)
2019-08-04
TESS0.01 ± 0.26
KELT-23Ab (LOW)
2019-07-28
TESS-0.07 ± 0.24
KELT-23Ab (LOW)
2019-07-26
TESS-0.12 ± 0.29
KELT-23Ab (LOW)
2019-07-23
TESS0.29 ± 0.24
KELT-23Ab (LOW)
2019-07-21
TESS-0.13 ± 0.24
KELT-23Ab (LOW)
2019-07-19
TESS-0.08 ± 0.27
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