exoclock

EPIC246851721b (LOW)

Discovered by: Yu et al. 2018

The Star
Simbad
GAIA
2MASS
K2-267
DR2 3393939026234131584
J05154075+1616435
RA 05:15:40.7537 DEC +16:16:43.518
Parallax
2.664 mas
P.M. RA
2.717 mas/y
P.M. DEC
-12.983 mas/y
MagV
11.24
MagR*
11.034
MagI*
10.528
MagJ
10.199
MagH
9.967
MagK
9.893
MagG
11.255
MagGBP
11.597
MagGRP
10.772
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458328.62999 ± 0.0002 BJDTDB
Period
6.1802688 ± 1.6e-06 days

Transit Parameters
Yu et al. 2018
Rp/Rs
0.068 ± 0.003
a/Rs
9.8 +0.17 -0.17
i
86.21 +0.17 -0.17 deg
e
-
ω
- deg
DepthR*
5.39 mmag
Duration*
4.1 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Yu et al. 2018
Teff
6202.0 +52.0 -50.0 K
Log(g)
4.16 +0.02 -0.02 cm/s2
Fe/H
0.14 +0.08 -0.09 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 9.8"
Total Observations (Recent) 35 (6)
O-C -4.33 ± 0.81 minutes
ExoClock Observations (Recent) 13 (6)
Space Observations (Recent) 22 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs 0.07329 ± 0.00018
TESS Rp/Rs 0.07188 ± 0.00047

EPIC246851721b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
EPIC246851721b (LOW)
2026-01-25
Pieter Vuylsteke
Marvel (La Palma)
ASA Ritchey
ZWO 6200mm / gpr / 30.0
-4.76 ± 0.96
EPIC246851721b (LOW)
2025-12-19
Simon Dawes
William James II
Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 300.0
3.66 ± 4.61
EPIC246851721b (LOW)
2025-12-19
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 100.0
-2.38 ± 3.89
EPIC246851721b (LOW)
2025-11-19
Mark van der Grijp
Raspay Observatory
C9.25 HD
ZWO2600 MM Pro / Lum / 60.0
0.85 ± 3.6
EPIC246851721b (LOW)
2025-11-19
Matthieu Bachschmidt
Gonachon
Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 60.0
-6.21 ± 2.3
EPIC246851721b (LOW)
2025-10-19
Tommaso Dittadi
TD-TRO
Ritchey-Chretien
Moravian G2-1600 / R / 90.0
-8.88 ± 6.05
EPIC246851721b (LOW)
2025-01-13
Deborah Smith
Complejo Astronomico Los Coloraos, Gorafe
C9.25
QHY9 / ipr / 120.0
-2.41 ± 6.77
EPIC246851721b (LOW)
2023-11-20
Yen-Hsing Lin
NTHU TAT
GSO RC10
Apogee AltaF-6: KAF1001E / Clear / 30.0
-1.29 ± 2.88
EPIC246851721b (LOW)
2023-01-21
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 100.0
-0.18 ± 4.03
EPIC246851721b (LOW)
2023-01-21
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 60.0
-2.05 ± 3.6
EPIC246851721b (LOW)
2022-11-21
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 100.0
3.12 ± 4.32
EPIC246851721b (LOW)
2021-11-27
Taewoo Kim
Deokheung Optical Astronomy Observatory
NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 60.0
1.67 ± 1.3
EPIC246851721b (LOW)
2021-10-27
Taewoo Kim
Deokheung Optical Astronomy Observatory
NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 90.0
-0.43 ± 1.15

Space Observations

Planet
Observation Date
Mission O-C
minutes
EPIC246851721b (LOW)
2023-11-08
TESS-0.37 ± 1.87
EPIC246851721b (LOW)
2023-11-02
TESS-2.28 ± 2.02
EPIC246851721b (LOW)
2023-10-27
TESS1.99 ± 2.45
EPIC246851721b (LOW)
2023-10-20
TESS-0.36 ± 2.02
EPIC246851721b (LOW)
2021-11-02
TESS0.62 ± 1.87
EPIC246851721b (LOW)
2021-10-21
TESS3.7 ± 2.16
EPIC246851721b (LOW)
2021-10-15
TESS-4.41 ± 1.87
EPIC246851721b (LOW)
2021-10-09
TESS-0.28 ± 1.87
EPIC246851721b (LOW)
2021-10-03
TESS1.55 ± 1.58
EPIC246851721b (LOW)
2021-09-26
TESS-0.22 ± 1.73
EPIC246851721b (LOW)
2021-09-20
TESS-2.0 ± 1.73
EPIC246851721b (LOW)
2020-12-10
TESS3.71 ± 1.87
EPIC246851721b (LOW)
2020-12-04
TESS0.07 ± 2.45
EPIC246851721b (LOW)
2020-11-28
TESS-1.13 ± 2.02
EPIC246851721b (LOW)
2020-11-21
TESS0.41 ± 1.87
EPIC246851721b (LOW)
2017-05-16
K2-1.71 ± 0.92
EPIC246851721b (LOW)
2017-05-10
K2-1.81 ± 0.89
EPIC246851721b (LOW)
2017-04-21
K21.11 ± 0.63
EPIC246851721b (LOW)
2017-04-15
K2-1.25 ± 0.5
EPIC246851721b (LOW)
2017-04-09
K21.67 ± 0.59
EPIC246851721b (LOW)
2017-03-27
K22.92 ± 1.02
EPIC246851721b (LOW)
2017-03-15
K2-0.51 ± 0.59
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