exoclock

K2-138f (HIGH)

Discovered by: Christiansen et al. 2018

The Star
Simbad
GAIA
2MASS
K2-138
DR2 2413596935442139520
J23154776-1050590
RA 23:15:47.7685 DEC -10:50:58.897
Parallax
4.908 mas
P.M. RA
-1.018 mas/y
P.M. DEC
-10.522 mas/y
MagV
12.21
MagR
12.12
MagI
11.4
MagJ
10.756
MagH
10.384
MagK
10.305
MagG
12.025
MagGBP
12.463
MagGRP
11.452
*Calculated from GAIA magnitudes.

Ephemeris - Not verified False
Hardegree-Ullman et al. 2021
Mid-time
2457738.7018 ± 0.0044 BJDTDB
Period
12.7576 ± 0.0012 days

Transit Parameters
Hardegree-Ullman et al. 2021
Rp/Rs
0.0298 ± 0.0013
a/Rs
27.32 +1.95 -2.11
i
88.99 +0.43 -0.35 deg
e
-
ω
- deg
DepthR*
1.12 mmag
Duration*
3.25 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Christiansen et al. 2018
Teff
5378.0 +60.0 -60.0 K
Log(g)
4.59 +0.07 -0.07 cm/s2
Fe/H
0.16 +0.04 -0.04 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 66.55"
Total Observations (Recent) 5 (0)
O-C -
ExoClock Observations (Recent) 0 (0)
Space Observations (Recent) 5 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs 0.03321 ± 0.00087
TESS Rp/Rs -

K2-138f


Space Observations

Planet
Observation Date
Mission O-C
minutes
K2-138f (HIGH)
2018-09-15
K2-101.95 ± 18.72
K2-138f (HIGH)
2017-02-17
K2-25.06 ± 5.47
K2-138f (HIGH)
2017-01-23
K21.44 ± 3.17
K2-138f (HIGH)
2016-12-28
K2-1.73 ± 4.18
K2-138f (HIGH)
2016-12-16
K2-89.86 ± 9.5
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