exoclock
The Star
Simbad
GAIA
2MASS
HD 122173
DR2 6173451477191225984
J14004645-3035008
RA 14:00:46.4447 DEC -30:35:00.837
Parallax
4.971 mas
P.M. RA
10.294 mas/y
P.M. DEC
-9.852 mas/y
MagV
10.07
MagR*
9.658
MagI*
9.423
MagJ
8.895
MagH
8.653
MagK
8.573
MagG
9.867
MagGBP
10.176
MagGRP
9.426
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2459000.73076 ± 0.00018 BJDTDB
Period
5.32201083 ± 8.6e-07 days

Transit Parameters
Hellier et al. 2017
Rp/Rs
0.0815 ± 0.0007
a/Rs
8.38 +0.13 -0.13
i
85.0 +0.3 -0.3 deg
e
-
ω
- deg
DepthR*
7.37 mmag
Duration*
3.89 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Hellier et al. 2017
Teff
6030.0 +90.0 -90.0 K
Log(g)
4.09 +0.03 -0.03 cm/s2
Fe/H
-0.18 +0.08 -0.08 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 5.37"
Total Observations (Recent) 14 (1)
O-C -7.04 ± 2.3 minutes
ExoClock Observations (Recent) 4 (1)
Space Observations (Recent) 9 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.08013 ± 0.00028

WASP-131b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
WASP-131b (HIGH)
2025-03-01
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 30.0
-7.04 ± 2.3
WASP-131b (HIGH)
2022-04-23
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
-2.11 ± 6.05
WASP-131b (HIGH)
2021-03-25
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
1.63 ± 2.16
WASP-131b (HIGH)
2020-04-29
Phil Evans
El Sauce
Planewave CDK14
SBIG STT 1603-3 / R / 45.0
2.74 ± 1.73

Space Observations

Planet
Observation Date
Mission O-C
minutes
WASP-131b (HIGH)
2023-04-30
TESS-0.69 ± 0.75
WASP-131b (HIGH)
2023-04-25
TESS0.02 ± 0.84
WASP-131b (HIGH)
2023-04-19
TESS0.18 ± 0.84
WASP-131b (HIGH)
2023-04-14
TESS1.25 ± 0.78
WASP-131b (HIGH)
2023-04-09
TESS-1.14 ± 0.73
WASP-131b (HIGH)
2019-05-19
TESS-0.65 ± 0.84
WASP-131b (HIGH)
2019-05-14
TESS1.18 ± 0.78
WASP-131b (HIGH)
2019-05-03
TESS0.94 ± 0.82
WASP-131b (HIGH)
2019-04-28
TESS-1.13 ± 0.78

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2014-09-19 Hellier et al. 2017 -0.18 ± 0.58
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