exoclock

KELT-17b (LOW)

Discovered by: Zhou et al. 2016

The Star
Simbad
GAIA
2MASS		 BD+14 1881
DR2 651935220461650560
J08222820+1344071
RA 08:22:28.2047 DEC +13:44:07.144
Parallax
4.387 mas		 P.M. RA
-25.428 mas/y		 P.M. DEC
-2.014 mas/y
MagV
9.23		 MagR*
9.089		 MagI
8.948		 MagJ
8.745		 MagH
8.697		 MagK
8.646
MagG
9.209		 MagGBP
9.358		 MagGRP
8.989
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2459440.791304 ± 7.8e-05 BJDTDB
Period
3.08017985 ± 5.1e-07 days
Transit Parameters
Zhou et al. 2016
Rp/Rs
0.09526 ± 0.00088		 a/Rs
6.38 +0.18 -0.18
 i
84.87 +0.45 -0.43 deg
e
-		 ω
- deg
DepthR*
10.8 mmag		 Duration*
3.47 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Zhou et al. 2016
Teff
7454.0 +49.0 -49.0 K
 Log(g)
4.22 +0.02 -0.02 cm/s2
 Fe/H
-0.018 +0.074 -0.072 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 51 (3)
O-C 0.57 ± 0.64 minutes
ExoClock Observations (Recent) 17 (3)
Space Observations (Recent) 21 (0)
ETD Observations (Recent) 2 (0)
Literature Mid-times (Recent) 11 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.09143 ± 0.00013

KELT-17b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
KELT-17b (LOW)
2024-12-16		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / ipr / 120.0		-3.77 ± 1.37
KELT-17b (LOW)
2024-12-12		Andre Kovacs
Moletai Astronomical Observatory (MAO)		35 cm Maksutov f/3.5
Apogee Alta U47 / R / 15.0		3.45 ± 1.2
KELT-17b (LOW)
2024-01-18		Charles Miller
Miller Observatory		Meade 12" LX850
QHY268M / R / 30.0		1.68 ± 1.38
KELT-17b (LOW)
2023-02-28		Alvaro Fornas
Valencia city		SkyWatcher MN190
Atik One 6 / Clear / 28.0		1.13 ± 1.87
KELT-17b (LOW)
2023-02-28		Enrique Arce
Vallbona Observatory		Newton 10" f4
Sbig ST7-XME / Clear / 12.0		-3.34 ± 2.3
KELT-17b (LOW)
2023-02-25		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 30.0		2.25 ± 2.3
KELT-17b (LOW)
2022-02-05		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
FLI Kepler CMOS 4040 / V / 180.0		-1.23 ± 2.59
KELT-17b (LOW)
2022-01-09		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 100.0		-2.07 ± 1.3
KELT-17b (LOW)
2022-01-06		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Clear / 60.0		4.96 ± 2.02
KELT-17b (LOW)
2022-01-06		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 30.0		4.09 ± 0.86
KELT-17b (LOW)
2020-03-20		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH3 i / ipr / 20.0		0.09 ± 0.39
KELT-17b (LOW)
2020-03-20		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH4 z / zpr / 15.0		-0.7 ± 0.39
KELT-17b (LOW)
2020-03-20		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B - CH2 r / rpr / 10.0		-1.58 ± 0.6
KELT-17b (LOW)
2020-03-20		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH1 g / gpr / 5.0		-1.99 ± 0.43
KELT-17b (LOW)
2020-01-10		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH3 i / ipr / 30.0		0.98 ± 0.75
KELT-17b (LOW)
2020-01-10		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH1 g / gpr / 12.0		-1.47 ± 0.52
KELT-17b (LOW)
2020-01-10		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH4 z / zpr / 25.0		-1.47 ± 0.65

Space Observations
Planet
Observation Date		 Mission O-C
minutes
KELT-17b (LOW)
2021-12-27		TESS-0.05 ± 0.4
KELT-17b (LOW)
2021-12-24		TESS-0.13 ± 0.37
KELT-17b (LOW)
2021-12-21		TESS0.55 ± 0.37
KELT-17b (LOW)
2021-12-15		TESS-0.33 ± 0.42
KELT-17b (LOW)
2021-12-12		TESS-0.26 ± 0.43
KELT-17b (LOW)
2021-12-09		TESS-0.47 ± 0.42
KELT-17b (LOW)
2021-12-06		TESS0.23 ± 0.4
KELT-17b (LOW)
2021-11-30		TESS0.22 ± 0.37
KELT-17b (LOW)
2021-11-27		TESS0.61 ± 0.4
KELT-17b (LOW)
2021-11-23		TESS-0.29 ± 0.45
KELT-17b (LOW)
2021-11-17		TESS0.22 ± 0.42
KELT-17b (LOW)
2021-11-14		TESS-0.5 ± 0.39
KELT-17b (LOW)
2021-11-11		TESS-0.14 ± 0.39
KELT-17b (LOW)
2021-11-08		TESS-0.45 ± 0.4
KELT-17b (LOW)
2021-11-05		TESS0.0 ± 0.4
KELT-17b (LOW)
2021-11-02		TESS-0.88 ± 0.36
KELT-17b (LOW)
2021-10-30		TESS0.96 ± 0.42
KELT-17b (LOW)
2021-10-27		TESS1.15 ± 0.45
KELT-17b (LOW)
2021-10-21		TESS-0.3 ± 0.42
KELT-17b (LOW)
2021-10-17		TESS0.47 ± 0.4
KELT-17b (LOW)
2021-10-14		TESS-0.33 ± 0.42

ETD Observations
Planet
Observation Date		 Observer(s) ETD link O-C
minutes
KELT-17b (LOW)
2022-02-05		Matthieu BACHSCHMIDT1644136689-0.37 ± 2.16
KELT-17b (LOW)
2020-03-17		Marc Bretton15844900072.12 ± 1.2

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2016-03-31 Zhou et al. 2016 -1.78 ± 0.86
2016-03-06 Zhou et al. 2016 4.17 ± 2.59
2016-02-26 Zhou et al. 2016 1.35 ± 0.86
2016-02-26 Zhou et al. 2016 -0.66 ± 1.3
2015-11-04 Zhou et al. 2016 -2.89 ± 1.3
2015-03-12 Zhou et al. 2016 1.21 ± 1.3
2015-03-12 Zhou et al. 2016 1.21 ± 1.73
2015-03-12 Zhou et al. 2016 0.92 ± 1.73
2015-03-12 Zhou et al. 2016 -0.08 ± 2.16
2015-03-12 Zhou et al. 2016 -2.82 ± 2.02
2015-03-06 Zhou et al. 2016 4.03 ± 1.87
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