exoclock

HAT-P-23b (LOW)

Discovered by: Bakos et al. 2011

The Star
Simbad
GAIA
2MASS
HAT-P-23
DR2 1808938730710633984
J20242972+1645437
RA 20:24:29.7235 DEC +16:45:43.810
Parallax
2.713 mas
P.M. RA
13.263 mas/y
P.M. DEC
-5.412 mas/y
MagV
11.94
MagR
12.27
MagI*
11.216
MagJ
11.103
MagH
10.846
MagK
10.791
MagG
12.174
MagGBP
12.518
MagGRP
11.679
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457742.57379 ± 7.2e-05 BJDTDB
Period
1.212886397 ± 7.4e-08 days

Transit Parameters
Ciceri et al. 2015
Rp/Rs
0.1162 ± 0.0008
a/Rs
4.55 +0.09 -0.09
i
85.7 +0.9 -0.9 deg
e
-
ω
- deg
DepthR*
17.48 mmag
Duration*
2.19 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Bakos et al. 2011
Teff
5905.0 +80.0 -80.0 K
Log(g)
4.33 +0.05 -0.05 cm/s2
Fe/H
0.15 +0.04 -0.04 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 6.21"
Total Observations (Recent) 91 (13)
O-C -0.55 ± 0.23 minutes
ExoClock Observations (Recent) 49 (13)
Space Observations (Recent) 0 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 42 (0)
Kepler Rp/Rs -
TESS Rp/Rs -

HAT-P-23b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
HAT-P-23b (LOW)
2022-10-02
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0
-1.29 ± 2.16
HAT-P-23b (LOW)
2022-09-15
Sacha Foschino
Observatoire des Baronnies Provençales
Planewave 430mm
SVO ASI 6200 MM Pro / Clear / 120.0
1.85 ± 1.01
HAT-P-23b (LOW)
2022-09-15
Francesco Conti
Francesco Conti
Celestron C8
ZWO ASI533 / Clear / 53.0
-4.3 ± 4.18
HAT-P-23b (LOW)
2022-08-23
Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"
NEWTON 410/1710
Custom made with KAF-1603ME CCD sensor / R / 50.0
2.46 ± 1.32
HAT-P-23b (LOW)
2022-08-23
Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0
-3.52 ± 1.58
HAT-P-23b (LOW)
2022-08-12
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0
0.63 ± 0.72
HAT-P-23b (LOW)
2022-08-12
Simon Dawes
William James II Observatory
Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 120.0
-0.96 ± 1.44
HAT-P-23b (LOW)
2022-08-12
Kevin Johnson
Holbrook Observatory
Meade LX10 EMC
Atik 383L+ / Lum / 90.0
-2.11 ± 1.58
HAT-P-23b (LOW)
2022-07-20
Stefano Lora
MarSEC
Ritchey Chrétien
Moravian G2 Mark II / Clear / 90.0
-1.33 ± 0.86
HAT-P-23b (LOW)
2022-07-10
Matthieu Bachschmidt
Gonachon
Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 60.0
-1.79 ± 1.01
HAT-P-23b (LOW)
2022-07-06
Bryan Martin
Tiger Butte Obseratory
AG Opitcal
ZWO ASI 294 / AstrodonExoPlanet-BB / 120.0
1.03 ± 1.87
HAT-P-23b (LOW)
2022-06-23
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 150.0
-1.06 ± 1.3
HAT-P-23b (LOW)
2022-06-16
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 180.0
-1.73 ± 1.15
HAT-P-23b (LOW)
2021-10-25
Trevor Gainey
Kismet
Meade LX200
ZWO ASI 294 MC Pro / Lum / 80.0
-0.76 ± 2.3
HAT-P-23b (LOW)
2021-10-08
Aziz Ettahar Kaeouach
High Atlas Observatory
Celestron C11 hd
Zwo asi 294 mm pro / R / 60.0
1.12 ± 1.44
HAT-P-23b (LOW)
2021-10-08
Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave 2
ZWO ASI6200 / R / 120.0
0.4 ± 1.01
HAT-P-23b (LOW)
2021-10-04
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 120.0
-1.4 ± 0.58
HAT-P-23b (LOW)
2021-09-17
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 120.0
0.19 ± 0.72
HAT-P-23b (LOW)
2021-08-01
Maurice Audejean
Observatoire ChantePerdrix UAI A77
T400
Atik 160 ex / Clear / 5.0
-1.56 ± 0.86
HAT-P-23b (LOW)
2021-07-26
Nello Ruocco
Osservatorio Astronomico Nastro Verde di Sorrento MPC code C82
SC Meade LX200 GPS on equatorial fork
Sbig ST10XME / Clear / 180.0
0.07 ± 1.58
HAT-P-23b (LOW)
2021-07-16
Tim Haymes
Southside Observatory
Newtonian 30cm
QHY174m / Clear / 20.0
0.62 ± 1.87
HAT-P-23b (LOW)
2021-06-12
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0
-1.37 ± 1.01
HAT-P-23b (LOW)
2020-10-31
Ferran Grau Horta
Ca L'Ou
Meade ACF 16''
FLI Proline PL1001 / R / 180.0
-0.22 ± 1.44
HAT-P-23b (LOW)
2020-08-24
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
-0.17 ± 0.72
HAT-P-23b (LOW)
2020-08-18
Iakovos Strikis
Elizabeth Observatory of Athens
Sky Watcher Quattro
SBIG STF-8300mm / R / 80.0
-0.56 ± 2.02
HAT-P-23b (LOW)
2020-08-01
Adam Popowicz
Observatory Pyskowice
RC12" GSO
ASI ZWO 1600 MM / ATIK 11000M / R / 90.0
1.19 ± 2.59
HAT-P-23b (LOW)
2020-07-28
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 90.0
-1.34 ± 1.15
HAT-P-23b (LOW)
2020-06-28
Mauro Caló
Cavallino
RC
SBIG ST10 / Clear / 120.0
3.95 ± 1.58
HAT-P-23b (LOW)
2020-06-28
Lorenzo Betti
Osservatorio Polifunzionale del Chianti
RC-80cm
Moravian G4 - KAF 09000 / R / 90.0
2.03 ± 0.86
HAT-P-23b (LOW)
2020-06-28
Claudio Lopresti
Claudio Lopresti
Makutov-Newton
CCD Sbig ST8xme / Lum / 240.0
0.21 ± 1.3
HAT-P-23b (LOW)
2020-06-28
Dim Stouraitis
Galilaios
SCT
SXVF-H9 Starlight-Xpress / Clear / 40.0
-0.95 ± 1.15
HAT-P-23b (LOW)
2020-06-18
Fabio Mortari
Hypatia Observatory
Newton 250mm f/4.9
Sbig ST8-XE / R / 200.0
-2.85 ± 1.15
HAT-P-23b (LOW)
2020-06-01
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 90.0
2.2 ± 1.44
HAT-P-23b (LOW)
2019-09-28
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
0.1 ± 0.58
HAT-P-23b (LOW)
2019-09-17
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / V / 120.0
0.93 ± 0.58
HAT-P-23b (LOW)
2019-08-14
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 120.0
0.67 ± 0.58
HAT-P-23b (LOW)
2019-08-04
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 120.0
0.93 ± 0.58
HAT-P-23b (LOW)
2018-10-21
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
-0.1 ± 1.01
HAT-P-23b (LOW)
2018-08-27
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 120.0
0.15 ± 0.86
HAT-P-23b (LOW)
2018-07-24
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
-1.11 ± 0.86
HAT-P-23b (LOW)
2018-07-17
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
-1.07 ± 0.86
HAT-P-23b (LOW)
2018-07-11
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 120.0
0.13 ± 1.01
HAT-P-23b (LOW)
2018-06-30
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
1.25 ± 0.86
HAT-P-23b (LOW)
2018-06-30
Alessandro Marchini
Astronomical Observatory University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 300.0
-1.63 ± 1.3
HAT-P-23b (LOW)
2017-11-19
Mario Morales Aimar
Observatorio de Sencelles MPC K14
10" Meade Schmidt Cassegrain
SBIG ST7-XME / Clear / 100.0
-2.07 ± 1.44
HAT-P-23b (LOW)
2017-10-16
Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
0.26 ± 0.86
HAT-P-23b (LOW)
2017-09-29
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 120.0
2.29 ± 0.43
HAT-P-23b (LOW)
2017-09-06
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
0.77 ± 0.86
HAT-P-23b (LOW)
2016-07-19
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
-0.17 ± 0.43

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2018-10-16 Salisbury et al. 2021 -0.03 ± 0.86
2018-09-29 Salisbury et al. 2021 3.21 ± 1.34
2018-09-23 Salisbury et al. 2021 3.23 ± 1.08
2018-09-23 Salisbury et al. 2021 1.09 ± 0.98
2018-09-06 Maciejewski et al. 2018 -0.38 ± 0.48
2018-08-27 Salisbury et al. 2021 -0.28 ± 0.86
2018-08-10 Salisbury et al. 2021 0.6 ± 0.65
2018-08-08 Maciejewski et al. 2018 0.19 ± 0.68
2018-08-03 Maciejewski et al. 2018 0.08 ± 0.5
2018-08-03 Salisbury et al. 2021 -0.69 ± 0.95
2018-07-17 Maciejewski et al. 2018 -0.02 ± 0.68
2018-07-17 Salisbury et al. 2021 -0.84 ± 0.78
2018-07-13 Salisbury et al. 2021 -1.42 ± 1.12
2018-07-07 Salisbury et al. 2021 2.74 ± 1.02
2018-07-07 Salisbury et al. 2021 -0.38 ± 1.01
2018-06-30 Salisbury et al. 2021 0.53 ± 1.73
2018-06-30 Salisbury et al. 2021 -0.81 ± 1.08
2018-06-26 Salisbury et al. 2021 1.3 ± 0.82
2017-10-16 Maciejewski et al. 2018 -0.41 ± 0.56
2017-10-05 Salisbury et al. 2021 -0.16 ± 1.09
2017-08-16 Maciejewski et al. 2018 -0.23 ± 0.35
2017-07-30 Maciejewski et al. 2018 -0.32 ± 0.3
2017-07-23 Maciejewski et al. 2018 -0.06 ± 0.3
2016-10-02 Patra et al. 2020 0.61 ± 0.63
2016-09-26 Patra et al. 2020 -0.58 ± 0.89
2016-09-09 Patra et al. 2020 -0.28 ± 0.66
2016-09-07 Maciejewski et al. 2018 -0.31 ± 0.42
2016-09-01 Maciejewski et al. 2018 -0.41 ± 0.24
2016-08-26 Maciejewski et al. 2018 0.05 ± 0.49
2016-08-21 Maciejewski et al. 2018 -0.56 ± 0.49
2016-07-02 Maciejewski et al. 2018 0.18 ± 0.37
2014-09-11 Sada et al. 2016 1.14 ± 0.86
2014-08-25 Sada et al. 2016 0.48 ± 0.75
2013-08-08 Sada et al. 2016 -0.44 ± 0.84
2012-10-04 Sada et al. 2016 0.16 ± 0.81
2012-09-23 Sada et al. 2016 -3.0 ± 1.08
2012-09-06 Sada et al. 2016 0.8 ± 0.92
2011-08-21 Sada et al. 2016 1.45 ± 0.94
2011-08-16 Sada et al. 2016 -1.24 ± 0.89
2011-08-04 Sada et al. 2016 1.04 ± 0.84
2011-06-03 Sada et al. 2016 1.55 ± 0.86
2009-01-20 Bakos et al. 2011 -0.14 ± 0.26
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