exoclock

WASP-133b (MEDIUM)

Discovered by: Maxted et al. 2016

The Star
Simbad
GAIA
2MASS		 WASP-133
DR2 6778662809294560896
J20581808-3547475
RA 20:58:18.0896 DEC -35:47:47.712
Parallax
1.762 mas		 P.M. RA
12.088 mas/y		 P.M. DEC
-8.249 mas/y
MagV
12.9		 MagR*
12.477		 MagI*
12.088		 MagJ
11.555		 MagH
11.238		 MagK
11.18
MagG
12.715		 MagGBP
13.111		 MagGRP
12.172
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457789.50349 ± 0.0003 BJDTDB
Period
2.17642445 ± 5.9e-07 days
Transit Parameters
Maxted et al. 2016
Rp/Rs
0.086 ± 0.0006		 a/Rs
5.16 +0.08 -0.15
 i
87.0 +1.0 -1.0 deg
e
-		 ω
- deg
DepthR*
9.73 mmag		 Duration*
3.42 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Maxted et al. 2016
Teff
5700.0 +100.0 -100.0 K
 Log(g)
4.18 +0.02 -0.02 cm/s2
 Fe/H
0.29 +0.12 -0.12 dex
ExoClock Status
Observing Priority MEDIUM
Minimum aperture 8.53"
Total Observations (Recent) 23 (0)
O-C -1.28 ± 0.9 minutes
ExoClock Observations (Recent) 13 (0)
Space Observations (Recent) 8 (0)
ETD Observations (Recent) 1 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.0871 ± 0.0013

WASP-133b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-133b (MEDIUM)
2024-09-26		Francois Regembal
HRT Deep Sky Chile		Astrosib RC360
Moravian C3 PRO 61000 / Lum / 140.0		1.97 ± 3.46
WASP-133b (MEDIUM)
2024-09-13		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 60.0		-0.27 ± 2.45
WASP-133b (MEDIUM)
2024-08-31		Luciano Correa
Pico dos Dias		Boller & Chivens
Andor iKon-L CCD / R / 120.0		-1.73 ± 1.01
WASP-133b (MEDIUM)
2023-08-27		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 180.0		1.75 ± 1.73
WASP-133b (MEDIUM)
2023-06-16		Anaël Wünsche
El Sauce Observatory		CDK Planewave Chili
Moravian G4 16k / Lum / 120.0		-1.7 ± 2.74
WASP-133b (MEDIUM)
2023-06-16		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 90.0		-1.7 ± 2.02
WASP-133b (MEDIUM)
2022-10-11		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 180.0		0.88 ± 2.3
WASP-133b (MEDIUM)
2022-05-18		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-9.29 ± 2.16
WASP-133b (MEDIUM)
2020-10-25		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Clear / 120.0		-4.1 ± 3.02
WASP-133b (MEDIUM)
2020-09-18		Phil Evans
El Sauce		Planewave CDK14
SBIG STT 1603-3 / R / 120.0		0.82 ± 1.44
WASP-133b (MEDIUM)
2020-09-18		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Clear / 120.0		-1.77 ± 1.3
WASP-133b (MEDIUM)
2020-09-07		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-1.6 ± 2.02
WASP-133b (MEDIUM)
2018-08-13		Leandro de Almeida
Observatório do Pico dos Dias		0.6m Boller & Chivens f/13.49
Andor Ikon 14912 CCD / I / 50.0		4.66 ± 0.89

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-133b (MEDIUM)
2023-08-20		TESS2.43 ± 2.74
WASP-133b (MEDIUM)
2023-08-18		TESS-3.01 ± 2.88
WASP-133b (MEDIUM)
2023-08-16		TESS4.37 ± 2.59
WASP-133b (MEDIUM)
2023-08-14		TESS2.1 ± 2.45
WASP-133b (MEDIUM)
2023-08-07		TESS-2.11 ± 1.73
WASP-133b (MEDIUM)
2023-08-03		TESS-2.62 ± 2.88
WASP-133b (MEDIUM)
2023-07-31		TESS-1.28 ± 4.03
WASP-133b (MEDIUM)
2023-07-29		TESS2.64 ± 2.45

ETD Observations
Planet
Observation Date		 Observer(s) ETD link O-C
minutes
WASP-133b (MEDIUM)
2017-09-17		Phil Evans1505694440-0.3 ± 2.16

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2015-04-04 Maxted et al. 2016 -0.19 ± 0.29
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