exoclock

K2-237b (LOW)

Discovered by: Soto et al. 2018

The Star
Simbad
GAIA
2MASS
K2-237
DR2 6032746832450438400
J16550453-2842380
RA 16:55:04.5335 DEC -28:42:38.014
Parallax
3.149 mas
P.M. RA
-8.568 mas/y
P.M. DEC
-5.562 mas/y
MagV
11.6
MagR
11.53
MagI*
10.941
MagJ
10.508
MagH
10.268
MagK
10.217
MagG
11.467
MagGBP
11.776
MagGRP
11.012
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457942.11408 ± 0.00012 BJDTDB
Period
2.18053435 ± 4.6e-07 days

Transit Parameters
Soto et al. 2018
Rp/Rs
0.118 ± 0.002
a/Rs**
5.4 +0.04 -0.05
i
84.3 +0.7 -0.4 deg
e
-
ω
- deg
DepthR*
17.03 mmag
Duration*
3.06 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Soto et al. 2018
Teff
6257.0 +100.0 -100.0 K
Log(g)
4.24 +0.1 -0.1 cm/s2
Fe/H
0.14 +0.05 -0.05 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 39 (4)
O-C -1.54 ± 0.41 minutes
ExoClock Observations (Recent) 13 (4)
Space Observations (Recent) 25 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs 0.1225 ± 0.0002
TESS Rp/Rs 0.1239 ± 0.00086

K2-237b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
K2-237b (LOW)
2024-05-30
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
-1.85 ± 0.98
K2-237b (LOW)
2024-05-17
Aziz Ettahar Kaeouach
Atlas Sky Observatory
Planewaves CDK 500
Zwo asi 6200 / R / 120.0
-1.75 ± 1.07
K2-237b (LOW)
2023-06-14
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 90.0
-0.38 ± 0.78
K2-237b (LOW)
2023-06-14
Francois Regembal
HRT Deep Sky Chile
Astrosib RC360
Moravian C3 PRO 61000 / Lum / 120.0
-1.88 ± 1.34
K2-237b (LOW)
2023-03-12
Magdalena Szkudlarek
Deep Sky Chile - ROTUZ
PlaneWave CDK 20
QHY268M pro / R / 24.0
-2.17 ± 0.73
K2-237b (LOW)
2021-08-07
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
3.49 ± 0.86
K2-237b (LOW)
2021-05-05
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
1.15 ± 1.01
K2-237b (LOW)
2021-05-05
Anaël Wünsche
El Sauce Observatory
CDK Planewave Chili
Moravian G4 16k / Lum / 120.0
1.15 ± 0.86
K2-237b (LOW)
2021-04-22
Anaël Wünsche
El Sauce Observatory
CDK Planewave Chili
Moravian G4 16k / Lum / 120.0
2.17 ± 2.16
K2-237b (LOW)
2021-03-29
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
-0.31 ± 1.01
K2-237b (LOW)
2020-07-17
Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
-1.15 ± 1.01
K2-237b (LOW)
2020-05-19
Phil Evans
El Sauce
Planewave CDK14
SBIG STT 1603-3 / R / 60.0
-0.82 ± 0.72
K2-237b (LOW)
2020-05-06
Phil Evans
El Sauce
Planewave CDK14
SBIG STT 1603-3 / R / 120.0
-1.39 ± 1.15

Space Observations

Planet
Observation Date
Mission O-C
minutes
K2-237b (LOW)
2021-06-22
TESS-0.08 ± 2.45
K2-237b (LOW)
2021-06-20
TESS-3.48 ± 1.87
K2-237b (LOW)
2021-06-17
TESS-2.43 ± 1.44
K2-237b (LOW)
2021-06-15
TESS2.09 ± 4.75
K2-237b (LOW)
2021-06-13
TESS-2.18 ± 1.73
K2-237b (LOW)
2021-06-11
TESS-3.14 ± 1.58
K2-237b (LOW)
2021-06-07
TESS0.7 ± 1.44
K2-237b (LOW)
2021-06-04
TESS-3.14 ± 1.58
K2-237b (LOW)
2021-05-31
TESS1.71 ± 1.58
K2-237b (LOW)
2021-05-29
TESS-0.97 ± 1.58
K2-237b (LOW)
2019-06-16
TESS-1.0 ± 1.38
K2-237b (LOW)
2019-06-14
TESS5.17 ± 1.87
K2-237b (LOW)
2019-06-11
TESS-4.0 ± 1.58
K2-237b (LOW)
2019-06-01
TESS-2.88 ± 1.58
K2-237b (LOW)
2019-05-29
TESS0.48 ± 1.58
K2-237b (LOW)
2019-05-27
TESS0.81 ± 1.58
K2-237b (LOW)
2019-05-25
TESS-5.62 ± 2.74
K2-237b (LOW)
2016-12-01
K21.49 ± 1.4
K2-237b (LOW)
2016-11-11
K2-0.45 ± 0.29
K2-237b (LOW)
2016-11-07
K20.67 ± 0.36
K2-237b (LOW)
2016-11-03
K2-0.08 ± 0.24
K2-237b (LOW)
2016-10-27
K2-0.19 ± 0.49
K2-237b (LOW)
2016-10-23
K20.18 ± 0.4
K2-237b (LOW)
2016-10-16
K20.61 ± 0.27
K2-237b (LOW)
2016-10-01
K2-0.64 ± 0.3

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2019-04-16 Edwards et al. 2021 1.47 ± 0.88
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