exoclock

WASP-50b (LOW)

Discovered by: Gillon et al. 2011

The Star
Simbad
GAIA
2MASS		 WASP-50
DR2 5160557726183065984
J02544513-1053530
RA 02:54:45.1342 DEC -10:53:53.026
Parallax
5.382 mas		 P.M. RA
3.281 mas/y		 P.M. DEC
8.963 mas/y
MagV
11.44		 MagR
11.599		 MagI*
10.61		 MagJ
10.401		 MagH
10.041		 MagK
9.969
MagG
11.552		 MagGBP
11.965		 MagGRP
11.005
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458684.806211 ± 8.5e-05 BJDTDB
Period
1.9550929 ± 1.5e-07 days
Transit Parameters
Gillon et al. 2011
Rp/Rs
0.1404 ± 0.0012		 a/Rs
7.53 +0.22 -0.22
 i
84.74 +0.24 -0.24 deg
e
0.009 +0.011 -0.006
 ω
44.0 +62.0 -80.0 deg
DepthR*
22.62 mmag		 Duration*
1.81 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Gillon et al. 2011
Teff
5400.0 +100.0 -100.0 K
 Log(g)
4.54 +0.05 -0.05 cm/s2
 Fe/H
-0.12 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.08"
Total Observations (Recent) 75 (5)
O-C -0.09 ± 0.25 minutes
ExoClock Observations (Recent) 53 (5)
Space Observations (Recent) 21 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.13763 ± 0.00036

WASP-50b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-50b (LOW)
2025-10-13		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		0.69 ± 0.99
WASP-50b (LOW)
2025-10-12		Patrick Farizy
Patrick Farizy		Celestron C8
Touptek 585 C / Clear / 30.0		2.24 ± 1.27
WASP-50b (LOW)
2025-10-12		Giovanni Calapai
Home Astronomical Observatory		Celestron 11 Schmidt-Cassegrain
Atik 314L+ / Clear / 90.0		-0.08 ± 0.98
WASP-50b (LOW)
2025-10-10		Yann LE GALL
Trevinca Skies		Newton
Ares M pr imx533 / AstrodonExoPlanet-BB / 45.0		0.5 ± 1.58
WASP-50b (LOW)
2025-09-30		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.04 ± 0.82
WASP-50b (LOW)
2024-12-16		Alex Capdevila Corral
Albatàrrec observatory		Ts-Photoline
ZWO 2600MC / Clear / 120.0		3.12 ± 2.02
WASP-50b (LOW)
2024-12-16		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / rpr / 120.0		2.18 ± 0.94
WASP-50b (LOW)
2024-12-16		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 60.0		1.95 ± 0.92
WASP-50b (LOW)
2024-12-14		Jordi Jofre
Curiosity Àger		Sky Watcher 150 PDS
ZWO 2600MC Pro / Clear / 300.0		5.13 ± 5.04
WASP-50b (LOW)
2024-12-05		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Lum / 90.0		-1.19 ± 1.2
WASP-50b (LOW)
2024-11-01		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		0.62 ± 0.69
WASP-50b (LOW)
2024-11-01		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / R / 240.0		-1.15 ± 1.87
WASP-50b (LOW)
2024-09-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-2.13 ± 2.02
WASP-50b (LOW)
2024-09-10		Alvaro Fornas
MPC J57. Centro Astronómico Alto Turia		Planewave CDK 17
QHY600M / Lum / 180.0		-1.16 ± 0.46
WASP-50b (LOW)
2024-01-13		Vikrant Kumar Agnihotri
Cepheid Observatory India		GSO Ritchey–Chrétien
Atik383L+ mono / Lum / 120.0		-2.58 ± 0.85
WASP-50b (LOW)
2024-01-01		Adam Popowicz
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / R / 65.0		-5.05 ± 2.02
WASP-50b (LOW)
2023-12-23		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 30.0		-0.42 ± 1.24
WASP-50b (LOW)
2023-11-19		Anis Ben Lassoued
Sousse Observatory		NEWTON SKY WATCHER
ASI 533 MM / R / 300.0		2.36 ± 1.87
WASP-50b (LOW)
2023-11-19		Miguel Ángel Álava Amat
Sarriguren		Meade SC 8"
Asi 1600 MM / Lum / 180.0		-0.89 ± 0.75
WASP-50b (LOW)
2023-11-19		Robert Roth
TURMX Observatory		CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / Lum / 120.0		-0.96 ± 0.88
WASP-50b (LOW)
2023-11-17		Rafa Barbera
Rafa Barberá		TS OPTICS PHOTON
ASI 533 MM PRO / Lum / 120.0		2.78 ± 2.02
WASP-50b (LOW)
2023-11-17		Marc Serrau
A77 - Dauban		Meade SC 12"
QHY260MM / rpr / 180.0		-0.18 ± 0.69
WASP-50b (LOW)
2023-09-18		Charles Miller
Miller Observatory		Meade 12" LX850
QHY268M / R / 30.0		1.04 ± 1.02
WASP-50b (LOW)
2022-12-22		Po-Jian Chiu
zhshs obs		Takahashi FS-152
ZWO ASI6200MM / Lum / 20.0		3.94 ± 3.31
WASP-50b (LOW)
2022-12-06		Stefano Lora
MarSEC		Ritchey Chrétien
Moravian G2 Mark II / R / 120.0		-3.35 ± 1.07
WASP-50b (LOW)
2022-11-25		James Eke
Private		William Optic Z61
ZWO ASI1600MM / Lum / 60.0		0.91 ± 2.45
WASP-50b (LOW)
2022-11-25		Sauro Gaudenzi
MicroObservatory Cecilia		MicroObservatory robotic telescope
KAF-1402ME / Clear / 60.0		-0.24 ± 4.75
WASP-50b (LOW)
2022-11-23		Sauro Gaudenzi
MicroObservatory Cecilia		MicroObservatory robotic telescope
KAF-1402ME / Clear / 60.0		-2.27 ± 3.17
WASP-50b (LOW)
2022-11-21		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.95 ± 0.68
WASP-50b (LOW)
2022-11-21		Andre Kovacs
MicroObservatory Cecillia		152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0		-0.98 ± 2.74
WASP-50b (LOW)
2022-08-23		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 180.0		2.29 ± 0.86
WASP-50b (LOW)
2022-01-26		Andre Kovacs
MicroObservatory Cecillia		152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0		1.49 ± 2.88
WASP-50b (LOW)
2021-12-29		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		0.05 ± 2.59
WASP-50b (LOW)
2021-12-16		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-0.02 ± 0.58
WASP-50b (LOW)
2021-11-08		christian PANTACCHINI
Observatoire de Benayes		Skywhatcher Newton
QHY8L / Clear / 180.0		-0.36 ± 4.32
WASP-50b (LOW)
2021-10-24		Andre Kovacs
MicroObservatory Cecillia		152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0		-3.32 ± 3.02
WASP-50b (LOW)
2021-10-04		Taewoo Kim
Deokheung Optical Astronomy Observatory		NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 90.0		0.61 ± 0.58
WASP-50b (LOW)
2021-09-21		Dominique DANIEL
La Montjoie		Celestron CGX C8 XLT
Camera CMOS ZWO ASI294MC pro (color) / Clear / 120.0		0.82 ± 3.02
WASP-50b (LOW)
2021-07-26		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		1.39 ± 0.58
WASP-50b (LOW)
2021-01-13		Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"		NEWTON 410/1710
Custom made with KAF-1603ME CCD sensor / R / 40.0		2.54 ± 1.73
WASP-50b (LOW)
2020-12-01		Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / Lum / 90.0		2.6 ± 1.01
WASP-50b (LOW)
2020-11-20		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-1.2 ± 0.72
WASP-50b (LOW)
2020-11-12		Martin Fowler
MicroObservatory Cecilia		MicroObservatory robotic telescope
KAF 1402ME / Clear / 60.0		5.52 ± 2.02
WASP-50b (LOW)
2020-09-30		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.55 ± 0.58
WASP-50b (LOW)
2020-09-28		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.1 ± 0.72
WASP-50b (LOW)
2020-09-26		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		2.25 ± 1.01
WASP-50b (LOW)
2020-01-20		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / V / 120.0		-0.49 ± 0.86
WASP-50b (LOW)
2019-12-08		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / V / 120.0		-1.15 ± 0.43
WASP-50b (LOW)
2019-10-29		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		2.68 ± 2.59
WASP-50b (LOW)
2019-10-29		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / V / 120.0		-1.5 ± 0.86
WASP-50b (LOW)
2019-01-03		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		-1.48 ± 1.58
WASP-50b (LOW)
2018-11-14		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / R / 60.0		0.27 ± 0.58
WASP-50b (LOW)
2014-12-11		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / AstrodonExoPlanet-BB / 60.0		1.99 ± 0.72

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-50b (LOW)
2020-11-16		TESS-1.15 ± 0.52
WASP-50b (LOW)
2020-11-14		TESS1.4 ± 0.52
WASP-50b (LOW)
2020-11-12		TESS-0.47 ± 0.58
WASP-50b (LOW)
2020-11-10		TESS0.06 ± 0.5
WASP-50b (LOW)
2020-11-08		TESS1.15 ± 0.49
WASP-50b (LOW)
2020-11-06		TESS-0.37 ± 0.49
WASP-50b (LOW)
2020-10-31		TESS0.21 ± 0.49
WASP-50b (LOW)
2020-10-29		TESS-0.55 ± 0.49
WASP-50b (LOW)
2020-10-27		TESS-0.59 ± 0.48
WASP-50b (LOW)
2020-10-25		TESS0.2 ± 0.5
WASP-50b (LOW)
2020-10-23		TESS-0.22 ± 0.43
WASP-50b (LOW)
2018-11-12		TESS0.07 ± 0.48
WASP-50b (LOW)
2018-11-10		TESS0.22 ± 0.46
WASP-50b (LOW)
2018-11-08		TESS-0.15 ± 0.52
WASP-50b (LOW)
2018-11-06		TESS-0.35 ± 0.52
WASP-50b (LOW)
2018-11-04		TESS-0.13 ± 0.48
WASP-50b (LOW)
2018-11-02		TESS-0.48 ± 0.48
WASP-50b (LOW)
2018-10-25		TESS-0.05 ± 0.42
WASP-50b (LOW)
2018-10-23		TESS-0.59 ± 0.52
WASP-50b (LOW)
2018-10-21		TESS-0.57 ± 0.45
WASP-50b (LOW)
2018-10-19		TESS0.08 ± 0.46

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2010-12-28 Gillon et al. 2011 0.02 ± 0.3
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