exoclock

WASP-183b (MEDIUM)

Discovered by: Turner et al. 2019

The Star
Simbad
GAIA
2MASS		 WASP-183
DR2 3803004978659671040
J10550935-0044139
RA 10:55:09.3535 DEC -00:44:13.811
Parallax
3.045 mas		 P.M. RA
-28.12 mas/y		 P.M. DEC
24.033 mas/y
MagV
13.01		 MagR
12.94		 MagI
12.758		 MagJ
11.639		 MagH
11.268		 MagK
11.207
MagG
12.815		 MagGBP
13.198		 MagGRP
12.279
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2459732.8256 ± 0.00023 BJDTDB
Period
4.1117669 ± 2.9e-06 days
Transit Parameters
Turner et al. 2019
Rp/Rs
0.195 ± 0.003		 a/Rs
11.44 +0.54 -0.54
 i
85.37 +0.61 -0.88 deg
e
-		 ω
- deg
DepthR*
24.9 mmag		 Duration*
2.09 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Turner et al. 2019
Teff
5313.0 +72.0 -72.0 K
 Log(g)
4.45 +0.04 -0.04 cm/s2
 Fe/H
-0.31 +0.04 -0.04 dex
ExoClock Status
Observing Priority MEDIUM
Minimum aperture 7.74"
Total Observations (Recent) 42 (2)
O-C 2.72 ± 0.66 minutes
ExoClock Observations (Recent) 22 (2)
Space Observations (Recent) 19 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.1951 ± 0.0012

WASP-183b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-183b (MEDIUM)
2026-03-18		John Savage
Rushay Farm Z42		Skywatcher Esprit 150
ZWO ASI 6200MM / Lum / 60.0		-0.93 ± 2.74
WASP-183b (MEDIUM)
2025-03-26		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Lum / 180.0		3.42 ± 1.44
WASP-183b (MEDIUM)
2025-03-18		Michael Nezel
Celle Observatory		CDK 14
QHY 268M / V / 200.0		2.48 ± 1.37
WASP-183b (MEDIUM)
2025-02-17		Alfredo Viegas
GRT North		AstroPhysics 175
FLI-16200 / R / 300.0		8.75 ± 3.02
WASP-183b (MEDIUM)
2025-02-17		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 180.0		2.26 ± 1.01
WASP-183b (MEDIUM)
2024-04-14		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / Lum / 240.0		3.74 ± 4.03
WASP-183b (MEDIUM)
2024-03-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		-3.41 ± 2.74
WASP-183b (MEDIUM)
2024-02-04		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 120.0		3.42 ± 1.01
WASP-183b (MEDIUM)
2024-02-04		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		3.07 ± 1.73
WASP-183b (MEDIUM)
2023-04-10		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		-2.71 ± 4.18
WASP-183b (MEDIUM)
2023-03-17		Laerte Andrade
Observatório do Pico dos Dias		1.6m Perkin-Elmer f/10
Andor iXon EMCCD / R / 40.0		0.37 ± 0.62
WASP-183b (MEDIUM)
2023-03-17		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 90.0		-3.27 ± 0.99
WASP-183b (MEDIUM)
2023-03-13		Adam Popowicz
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / R / 183.0		-5.93 ± 1.87
WASP-183b (MEDIUM)
2023-02-04		Javier Flores Martín
CAHA		GSO40
zwo 1600mm pro / Lum / 30.0		0.14 ± 0.71
WASP-183b (MEDIUM)
2022-03-07		Marc Deldem
Les Barres Observatory		Celestron C8
SBIG ST8-XME / Clear / 180.0		-1.29 ± 1.3
WASP-183b (MEDIUM)
2022-03-07		Yannic Delisle
Buthiers UAI 199		Custome made
SBIG ST-8300M/C / Clear / 60.0		-1.58 ± 1.15
WASP-183b (MEDIUM)
2022-03-07		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-2.58 ± 1.73
WASP-183b (MEDIUM)
2022-02-03		Andras Dan
Rocca1		Celestron C8
QHY 183 M / AstrodonExoPlanet-BB / 90.0		0.92 ± 2.02
WASP-183b (MEDIUM)
2022-01-29		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 180.0		-2.01 ± 3.02
WASP-183b (MEDIUM)
2022-01-25		Vikrant Kumar Agnihotri
Cepheid Observatory India		C11/f6.3 Schmidt-Cassegrain
SX-35 TRIUS mono (KAF11002) / Lum / 120.0		3.71 ± 2.45
WASP-183b (MEDIUM)
2022-01-05		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-1.28 ± 0.72
WASP-183b (MEDIUM)
2022-01-01		Fran Campos
Puig d'Agulles Observtory		RC14" on EQ8 German mount
SBIG ST-8XME / R / 180.0		5.29 ± 1.58

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-183b (MEDIUM)
2023-12-05		TESS3.46 ± 1.21
WASP-183b (MEDIUM)
2023-12-01		TESS-0.59 ± 1.27
WASP-183b (MEDIUM)
2023-11-22		TESS1.77 ± 1.35
WASP-183b (MEDIUM)
2023-11-18		TESS1.8 ± 1.37
WASP-183b (MEDIUM)
2021-12-28		TESS-2.08 ± 1.34
WASP-183b (MEDIUM)
2021-12-23		TESS-1.67 ± 1.15
WASP-183b (MEDIUM)
2021-12-19		TESS3.23 ± 1.15
WASP-183b (MEDIUM)
2021-12-15		TESS0.59 ± 1.43
WASP-183b (MEDIUM)
2021-12-11		TESS-0.79 ± 1.25
WASP-183b (MEDIUM)
2021-12-07		TESS0.6 ± 1.4
WASP-183b (MEDIUM)
2021-11-29		TESS-0.24 ± 1.37
WASP-183b (MEDIUM)
2021-11-25		TESS0.33 ± 1.34
WASP-183b (MEDIUM)
2021-11-16		TESS0.58 ± 1.18
WASP-183b (MEDIUM)
2021-11-12		TESS2.65 ± 1.37
WASP-183b (MEDIUM)
2021-11-08		TESS-0.42 ± 1.38
WASP-183b (MEDIUM)
2021-03-02		TESS-1.11 ± 1.3
WASP-183b (MEDIUM)
2021-02-26		TESS0.93 ± 1.14
WASP-183b (MEDIUM)
2021-02-18		TESS1.97 ± 1.43
WASP-183b (MEDIUM)
2021-02-14		TESS-0.47 ± 1.41

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2017-02-11 Turner et al. 2019 2.75 ± 3.46
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