exoclock

WASP-31b (MEDIUM)

Discovered by: Anderson et al. 2011

The Star
Simbad
GAIA
2MASS
WASP-31
DR2 3545873945303316224
J11174536-1903171
RA 11:17:45.3578 DEC -19:03:17.216
Parallax
2.577 mas
P.M. RA
-28.708 mas/y
P.M. DEC
0.99 mas/y
MagV
11.66
MagR
11.98
MagI*
11.069
MagJ
10.912
MagH
10.709
MagK
10.65
MagG
11.816
MagGBP
12.083
MagGRP
11.398
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457277.09226 ± 0.00012 BJDTDB
Period
3.4058875 ± 2.7e-07 days

Transit Parameters
Anderson et al. 2011
Rp/Rs
0.1271 ± 0.0011
a/Rs
8.0 +0.19 -0.19
i
84.41 +0.22 -0.22 deg
e
-
ω
- deg
DepthR*
17.25 mmag
Duration*
2.67 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Anderson et al. 2011
Teff
6302.0 +102.0 -102.0 K
Log(g)
4.31 +0.023 -0.023 cm/s2
Fe/H
-0.2 +0.09 -0.09 dex
ExoClock Status
Observing Priority MEDIUM
Minimum aperture 5.68"
Total Observations (Recent) 25 (2)
O-C -0.22 ± 0.31 minutes
ExoClock Observations (Recent) 6 (2)
Space Observations (Recent) 12 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 7 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.12499 ± 0.00057

WASP-31b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
WASP-31b (MEDIUM)
2022-06-09
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
-2.48 ± 1.01
WASP-31b (MEDIUM)
2022-05-23
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
-3.87 ± 1.73
WASP-31b (MEDIUM)
2021-06-13
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
2.09 ± 1.01
WASP-31b (MEDIUM)
2021-03-30
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
1.7 ± 1.15
WASP-31b (MEDIUM)
2021-03-23
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
1.23 ± 1.15
WASP-31b (MEDIUM)
2020-04-03
Phil Evans
El Sauce
Planewave CDK14
SBIG STT 1603-3 / R / 180.0
-1.22 ± 1.3

Space Observations

Planet
Observation Date
Mission O-C
minutes
WASP-31b (MEDIUM)
2021-03-30
TESS0.95 ± 0.99
WASP-31b (MEDIUM)
2021-03-26
TESS-1.23 ± 0.96
WASP-31b (MEDIUM)
2021-03-23
TESS0.03 ± 0.92
WASP-31b (MEDIUM)
2021-03-16
TESS-0.13 ± 0.92
WASP-31b (MEDIUM)
2021-03-13
TESS-1.0 ± 0.99
WASP-31b (MEDIUM)
2021-03-09
TESS-1.19 ± 0.94
WASP-31b (MEDIUM)
2019-03-25
TESS-1.36 ± 1.01
WASP-31b (MEDIUM)
2019-03-22
TESS2.14 ± 0.86
WASP-31b (MEDIUM)
2019-03-18
TESS-0.1 ± 0.95
WASP-31b (MEDIUM)
2019-03-11
TESS-0.55 ± 0.92
WASP-31b (MEDIUM)
2019-03-08
TESS0.17 ± 0.96
WASP-31b (MEDIUM)
2019-03-04
TESS-0.85 ± 0.95

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2013-03-19 Sing et al. 2015 0.27 ± 0.62
2013-03-09 Sing et al. 2015 -0.25 ± 0.46
2012-07-10 Sing et al. 2015 -0.86 ± 0.59
2012-06-26 Sing et al. 2015 -0.19 ± 0.53
2012-05-13 Sing et al. 2015 -0.0 ± 0.71
2011-01-26 Dragomir et al. 2011 -0.23 ± 2.02
2009-12-27 Anderson et al. 2011 0.56 ± 0.43
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