exoclock

K2-31b

Discovered by: Grziwa et al. 2016

The Star
Simbad
GAIA
2MASS
CD-23 12854
DR2 6050191241556876672
J16214578-2332520
RA 16:21:45.7780 DEC -23:32:52.289
Parallax
9.019 mas
P.M. RA
-40.23 mas/y
P.M. DEC
-96.332 mas/y
MagV
10.8
MagR*
10.292
MagI*
9.941
MagJ
9.318
MagH
8.942
MagK
8.866
MagG
10.537
MagGBP
10.967
MagGRP
9.974
* calculated from GAIA magnitudes

Ephemeris - Not verified False
Dai et al. 2016
Mid-time
2457191.70967 ± 0.00024 BJDTDB
Period
1.25785 ± 2e-06 days

Transit Parameters
Grziwa et al. 2016
Rp/Rs
0.14 ± 0.04
a/Rs
6.0 +0.5 -0.5
i
79.9 +0.8 -0.8 deg
e
-
ω
- deg
DepthR*
3.58 mmag
Duration*
0.71 hours
* calculated from the other parameters, using PyLightcurve

Limb Darkening Parameters
Grziwa et al. 2016
Teff
5280.0 +70.0 -70.0 K
Log(g)
4.6 +0.07 -0.07 cm/s2
Fe/H
0.08 +0.05 -0.05 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
HIGH
2 (2)
-3.5±1.4
0
K2-31b


ExoClock Observations
Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2021-09-30 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 60.0
-3.0 ± 1.7
2021-09-25 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 40.0
-4.4 ± 2.4
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