exoclock
The Star
Simbad
GAIA
2MASS
UCAC4 513-052714
DR2 3871908447498807296
J10573028+1232082
RA 10:57:30.2843 DEC +12:32:08.279
Parallax
5.042 mas
P.M. RA
-42.782 mas/y
P.M. DEC
-4.601 mas/y
MagV
12.864
MagR
12.568
MagI*
11.814
MagJ
11.096
MagH
10.653
MagK
10.547
MagG
12.591
MagGBP
13.13
MagGRP
11.927
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458056.72179 ± 0.00061 BJDTDB
Period
3.435497 ± 5e-06 days

Transit Parameters
Christiansen et al. 2022
Rp/Rs
0.0548 ± 0.001
a/Rs
6.33 +4.28 -0.57
i
82.0 +75.0 70.0 deg
e
-
ω
- deg
DepthR*
2.73 mmag
Duration*
2.43 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Christiansen et al. 2022
Teff
4927.0 +138.0 -138.0 K
Log(g)
4.68 +0.15 -0.15 cm/s2
Fe/H
0.132 +0.235 -0.235 dex
ExoClock Status
Observing Priority HIGH
Minimum aperture 33.47"
Total Observations (Recent) 24 (0)
O-C -4.07 ± 2.3 minutes
ExoClock Observations (Recent) 4 (0)
Space Observations (Recent) 20 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs 0.05554 ± 0.00059
TESS Rp/Rs 0.06 ± 0.0031

K2-405b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
K2-405b (HIGH)
2025-01-12
Yen-Hsing Lin
Lulin Observatory
Lulin LOT
Andor 936 / R / 20.0
4.19 ± 2.59
K2-405b (HIGH)
2024-03-19
Sacha Foschino
Observatoire des Baronnies Provençales
Astelco Cassegrain 32in
FLI PL230 / R / 180.0
-35.36 ± 5.04
K2-405b (HIGH)
2024-02-17
Gemma Domènech
Montsec Observatory
Joan Oró Telescope (TJO) RC F/9.6 0.8m
LAIA (Andor iKon XL) / R / 120.0
-16.96 ± 7.78
K2-405b (HIGH)
2023-12-18
Florence Libotte
Calar Alto
CaHa 1.23m
ANDOR iKonXL-230 DLRMkIV / I / 120.0
-7.82 ± 4.46

Space Observations

Planet
Observation Date
Mission O-C
minutes
K2-405b (HIGH)
2021-12-19
TESS-1.68 ± 8.64
K2-405b (HIGH)
2021-12-12
TESS1.76 ± 4.46
K2-405b (HIGH)
2021-12-06
TESS9.53 ± 6.48
K2-405b (HIGH)
2021-11-25
TESS14.56 ± 7.2
K2-405b (HIGH)
2021-11-22
TESS5.91 ± 7.92
K2-405b (HIGH)
2021-11-08
TESS2.15 ± 10.8
K2-405b (HIGH)
2017-08-05
K2-8.73 ± 2.59
K2-405b (HIGH)
2017-08-01
K2-0.67 ± 1.73
K2-405b (HIGH)
2017-07-29
K2-2.55 ± 3.31
K2-405b (HIGH)
2017-07-26
K2-1.55 ± 1.73
K2-405b (HIGH)
2017-07-19
K2-0.26 ± 2.74
K2-405b (HIGH)
2017-07-15
K2-1.7 ± 2.45
K2-405b (HIGH)
2017-07-12
K2-0.99 ± 2.02
K2-405b (HIGH)
2017-07-08
K21.17 ± 2.16
K2-405b (HIGH)
2017-07-05
K22.75 ± 3.02
K2-405b (HIGH)
2017-06-21
K21.15 ± 2.88
K2-405b (HIGH)
2017-06-18
K28.49 ± 2.74
K2-405b (HIGH)
2017-06-14
K28.48 ± 2.59
K2-405b (HIGH)
2017-06-11
K20.27 ± 1.87
K2-405b (HIGH)
2017-06-07
K2-2.33 ± 2.16
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