exoclock

K2-3b (HIGH)

Discovered by: Crossfield et al. 2015

The Star
Simbad
GAIA
2MASS
K2-3
DR2 3796690380302214272
J11292037-0127173
RA 11:29:20.3917 DEC -01:27:17.279
Parallax
22.661 mas
P.M. RA
94.034 mas/y
P.M. DEC
-78.139 mas/y
MagV
12.17
MagR
11.88
MagI*
10.498
MagJ
9.421
MagH
8.805
MagK
8.561
MagG
11.478
MagGBP
12.396
MagGRP
10.553
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457497.13419 ± 0.00062 BJDTDB
Period
10.0546611 ± 6.6e-06 days

Transit Parameters
Diamond-Lowe et al. 2022
Rp/Rs
0.0349 ± 0.00041
a/Rs
29.44 +0.74 -0.84
i
89.4 +0.34 -0.22 deg
e
0.107 +0.057 -0.059
ω
188.0 +32.0 -34.0 deg
DepthR*
1.59 mmag
Duration*
2.6 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Crossfield et al. 2015
Teff
3896.0 +189.0 -189.0 K
Log(g)
4.71952575919163 +0.1266175116087312 -0.1266175116087312 cm/s2
Fe/H
-0.32 +0.13 -0.13 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 45.64"
Total Observations (Recent) 17 (0)
O-C -
ExoClock Observations (Recent) 0 (0)
Space Observations (Recent) 11 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 6 (0)
Kepler Rp/Rs 0.03624 ± 0.00061
TESS Rp/Rs 0.0377 ± 0.0018

K2-3b


Space Observations

Planet
Observation Date
Mission O-C
minutes
K2-3b (HIGH)
2023-12-03
TESS3.43 ± 5.04
K2-3b (HIGH)
2023-11-23
TESS-4.11 ± 2.45
K2-3b (HIGH)
2021-12-19
TESS0.9 ± 2.45
K2-3b (HIGH)
2021-11-29
TESS2.66 ± 2.16
K2-3b (HIGH)
2014-08-14
K2-13.63 ± 4.61
K2-3b (HIGH)
2014-08-04
K23.17 ± 3.46
K2-3b (HIGH)
2014-07-25
K2-9.13 ± 2.74
K2-3b (HIGH)
2014-07-15
K27.23 ± 3.6
K2-3b (HIGH)
2014-07-05
K213.65 ± 3.74
K2-3b (HIGH)
2014-06-25
K2-5.7 ± 2.74
K2-3b (HIGH)
2014-06-04
K20.53 ± 1.73

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2016-08-27 Kosiarek et al. 2019 -1.4 ± 3.34
2016-04-18 Kosiarek et al. 2019 -0.78 ± 1.6
2016-03-19 Kosiarek et al. 2019 2.55 ± 1.64
2015-09-10 Kosiarek et al. 2019 -4.43 ± 2.15
2015-03-23 Kosiarek et al. 2019 1.13 ± 0.98
2015-03-13 Kosiarek et al. 2019 -0.21 ± 1.15
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