exoclock

WASP-61b (MEDIUM)

Discovered by: Hellier et al. 2012

The Star
Simbad
GAIA
2MASS		 WASP-61
DR2 2959177048983750016
J05011191-2603149
RA 05:01:11.9187 DEC -26:03:14.966
Parallax
2.018 mas		 P.M. RA
0.495 mas/y		 P.M. DEC
3.169 mas/y
MagV
12.49		 MagR*
11.879		 MagI*
11.921		 MagJ
11.219		 MagH
11.034		 MagK
11.008
MagG
12.07		 MagGBP
12.325		 MagGRP
11.666
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457513.70875 ± 0.00023 BJDTDB
Period
3.85589724 ± 5.1e-07 days
Transit Parameters
Hellier et al. 2012
Rp/Rs
0.0938 ± 0.0005		 a/Rs
7.93 +0.14 -0.14
 i
89.3 +0.5 -0.7 deg
e
-		 ω
- deg
DepthR*
11.56 mmag		 Duration*
4.06 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Hellier et al. 2012
Teff
6320.0 +140.0 -140.0 K
 Log(g)
4.26 +0.03 -0.03 cm/s2
 Fe/H
-0.1 +0.12 -0.12 dex
ExoClock Status
Observing Priority MEDIUM
Minimum aperture 5.79"
Total Observations (Recent) 25 (2)
O-C 1.01 ± 0.54 minutes
ExoClock Observations (Recent) 11 (2)
Space Observations (Recent) 12 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 2 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.09247 ± 0.00058

WASP-61b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-61b (MEDIUM)
2025-01-23		Francois Regembal
HRT Deep Sky Chile		Astrosib RC360
Moravian C3 PRO 61000 / Lum / 127.0		1.63 ± 1.58
WASP-61b (MEDIUM)
2025-01-23		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 180.0		-1.47 ± 1.18
WASP-61b (MEDIUM)
2023-12-19		Andre Kovacs
Observatório Pico dos Dias (OPD)		0.6 m Boller & Chivens f/6.75
Andor iKon-L 936 CCD / R / 16.0		3.65 ± 0.86
WASP-61b (MEDIUM)
2023-12-19		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 90.0		-0.57 ± 1.15
WASP-61b (MEDIUM)
2023-11-22		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-2.85 ± 2.16
WASP-61b (MEDIUM)
2022-12-10		Anaël Wünsche
El Sauce Observatory		CDK Planewave Chili
Moravian G4 16k / Lum / 120.0		-2.2 ± 3.02
WASP-61b (MEDIUM)
2021-10-31		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-3.33 ± 1.01
WASP-61b (MEDIUM)
2021-01-11		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		2.12 ± 2.16
WASP-61b (MEDIUM)
2020-12-15		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-0.35 ± 1.58
WASP-61b (MEDIUM)
2020-11-22		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		0.63 ± 2.02
WASP-61b (MEDIUM)
2020-11-18		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		3.94 ± 1.87

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-61b (MEDIUM)
2020-12-15		TESS-2.37 ± 1.41
WASP-61b (MEDIUM)
2020-12-11		TESS-0.5 ± 1.44
WASP-61b (MEDIUM)
2020-12-07		TESS0.85 ± 1.32
WASP-61b (MEDIUM)
2020-11-29		TESS-1.95 ± 1.44
WASP-61b (MEDIUM)
2020-11-25		TESS2.22 ± 1.58
WASP-61b (MEDIUM)
2020-11-22		TESS-0.95 ± 1.44
WASP-61b (MEDIUM)
2018-12-09		TESS-0.82 ± 1.58
WASP-61b (MEDIUM)
2018-12-05		TESS-0.83 ± 1.44
WASP-61b (MEDIUM)
2018-12-02		TESS-2.56 ± 1.73
WASP-61b (MEDIUM)
2018-11-24		TESS-0.26 ± 1.58
WASP-61b (MEDIUM)
2018-11-20		TESS1.72 ± 1.41
WASP-61b (MEDIUM)
2018-11-16		TESS-1.42 ± 1.58

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2012-05-27 Brown et al. 2017 -0.83 ± 0.72
2011-10-25 Hellier et al. 2012 0.28 ± 0.33
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