exoclock

HAT-P-68b (LOW)

Discovered by: Lindor et al. 2021

The Star
Simbad
GAIA
2MASS		 GSC 01925-01046
DR2 675443053940533760
J07535598+2356176
RA 07:53:55.9827 DEC +23:56:17.611
Parallax
4.918 mas		 P.M. RA
-23.655 mas/y		 P.M. DEC
-1.467 mas/y
MagV
13.802		 MagR
13.678		 MagI
13.278		 MagJ
11.75		 MagH
11.21		 MagK
11.019
MagG
13.544		 MagGBP
14.248		 MagGRP
12.743
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2458140.34562 ± 0.00011 BJDTDB
Period
2.29840555 ± 1.8e-07 days
Transit Parameters
Lindor et al. 2021
Rp/Rs
0.1644 ± 0.0015		 a/Rs
9.6 +0.185 -0.047
 i
88.73 +0.47 -0.27 deg
e
-		 ω
- deg
DepthR*
38.0 mmag		 Duration*
2.1 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Lindor et al. 2021
Teff
4508.0 +43.0 -43.0 K
 Log(g)
4.62 +0.01 -0.01 cm/s2
 Fe/H
-0.059 +0.036 -0.036 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 10.08"
Total Observations (Recent) 51 (14)
O-C 0.39 ± 0.19 minutes
ExoClock Observations (Recent) 30 (14)
Space Observations (Recent) 20 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.15936 ± 0.00079

HAT-P-68b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-68b (LOW)
2024-12-19		Geoffrey Stone
Dimension Point (V42)		CDK-24
FLI KL400 BI / AstrodonExoPlanet-BB / 20.0		-0.02 ± 0.82
HAT-P-68b (LOW)
2024-12-01		Mark van der Grijp
Raspay Observatory		C9.25 HD
ZWO2600 MM Pro / Lum / 120.0		1.37 ± 1.02
HAT-P-68b (LOW)
2024-12-01		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 120.0		-2.19 ± 0.59
HAT-P-68b (LOW)
2024-11-28		Alexey Garmash
Lyceum 130		EdgeHD C11
ASI2600MM pro / rpr / 240.0		-1.27 ± 1.31
HAT-P-68b (LOW)
2024-02-17		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / Lum / 240.0		3.63 ± 2.59
HAT-P-68b (LOW)
2024-02-17		Nello Ruocco
Osservatorio Astronomico Nastro Verde di Sorrento MPC code C82		SC Meade LX200 GPS on equatorial fork
Sbig ST10XME / Clear / 150.0		-1.2 ± 1.07
HAT-P-68b (LOW)
2024-02-13		Charles Miller
Miller Observatory		Meade 12" LX850
QHY268M / R / 75.0		0.64 ± 0.95
HAT-P-68b (LOW)
2024-02-10		John Collins
JC_Wrexham		Meade LX200GPS
ASI-290m / Clear / 30.0		-2.68 ± 2.74
HAT-P-68b (LOW)
2024-02-04		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 130.0		2.93 ± 1.34
HAT-P-68b (LOW)
2024-02-04		Ian Sharp
PixelSkies		Celestron C11 Edge HD
Starlight Xpress Trius Pro SX694 / R / 120.0		2.03 ± 1.2
HAT-P-68b (LOW)
2024-02-04		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 120.0		1.75 ± 0.56
HAT-P-68b (LOW)
2024-02-04		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		0.79 ± 0.69
HAT-P-68b (LOW)
2024-02-04		Robert Roth
TURMX Observatory		CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / Lum / 120.0		0.17 ± 0.73
HAT-P-68b (LOW)
2023-12-26		Tiberiu Savin
Tiberiu Savin		Skywatcher 200 Quattro
ZWO ASI 533MC / Clear / 180.0		4.25 ± 5.33
HAT-P-68b (LOW)
2023-11-10		Alexander Tarasenkov
Kislovodsk Optical Station (Institute of Astronomy of the Russian Academy of Sciences)		Astrosib RC500
ZWO ASI 6200MM Pro / V / 120.0		0.65 ± 0.53
HAT-P-68b (LOW)
2023-04-11		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Lum / 180.0		2.42 ± 1.87
HAT-P-68b (LOW)
2023-02-28		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0		1.7 ± 1.87
HAT-P-68b (LOW)
2023-02-28		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 150.0		-0.32 ± 1.73
HAT-P-68b (LOW)
2023-02-08		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / AstrodonExoPlanet-BB / 120.0		0.29 ± 1.08
HAT-P-68b (LOW)
2023-01-25		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / Clear / 120.0		1.8 ± 1.09
HAT-P-68b (LOW)
2023-01-13		Javier Flores Martín
CAHA		GSO40
zwo 1600mm pro / Lum / 60.0		0.19 ± 0.45
HAT-P-68b (LOW)
2022-10-30		Antonino Brosio
ABObservatory		Skywatcher Newton Quattro 300P
Atik 383 L / rpr / 240.0		3.36 ± 1.38
HAT-P-68b (LOW)
2022-03-04		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
FLI Kepler CMOS 4040 / Lum / 180.0		-2.95 ± 0.72
HAT-P-68b (LOW)
2022-02-10		Michelle Müller
TURMX Observatory		Planewave CDK17
GHY600M / rpr / 120.0		0.3 ± 0.58
HAT-P-68b (LOW)
2022-02-10		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 150.0		-1.58 ± 2.3
HAT-P-68b (LOW)
2022-01-24		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
FLI Kepler CMOS 4040 / Lum / 120.0		2.22 ± 0.58
HAT-P-68b (LOW)
2022-01-24		Jacques Michelet
Claix		GSO Ritchey-Chrétien
QSI-632 / R / 150.0		-0.22 ± 0.86
HAT-P-68b (LOW)
2022-01-01		Tõnis Eenmäe
Tartu Observatory		Planewave CDK 12.5
Apogee Alta U42 / Lum / 120.0		-0.29 ± 0.72
HAT-P-68b (LOW)
2021-12-09		Vikrant Kumar Agnihotri
Cepheid Observatory India		C8/f6.3 Schmidt-Cassegrain
Atik383L+ mono / AstrodonExoPlanet-BB / 75.0		-3.52 ± 1.3
HAT-P-68b (LOW)
2021-12-03		Robert Roth
TURMX Observatory		Planewave CDK17
QHY600M / rpr / 120.0		0.68 ± 0.43

Space Observations
Planet
Observation Date		 Mission O-C
minutes
HAT-P-68b (LOW)
2021-12-28		TESS-0.79 ± 0.95
HAT-P-68b (LOW)
2021-12-26		TESS-0.51 ± 1.04
HAT-P-68b (LOW)
2021-12-23		TESS1.16 ± 0.94
HAT-P-68b (LOW)
2021-12-21		TESS-2.31 ± 0.96
HAT-P-68b (LOW)
2021-12-19		TESS1.37 ± 0.98
HAT-P-68b (LOW)
2021-12-14		TESS0.61 ± 0.95
HAT-P-68b (LOW)
2021-12-12		TESS0.89 ± 0.92
HAT-P-68b (LOW)
2021-12-09		TESS-1.26 ± 1.07
HAT-P-68b (LOW)
2021-12-07		TESS-0.47 ± 1.05
HAT-P-68b (LOW)
2021-12-05		TESS0.57 ± 1.05
HAT-P-68b (LOW)
2021-11-05		TESS-0.1 ± 0.86
HAT-P-68b (LOW)
2021-11-03		TESS-0.45 ± 0.79
HAT-P-68b (LOW)
2021-10-31		TESS0.0 ± 1.11
HAT-P-68b (LOW)
2021-10-29		TESS0.71 ± 1.01
HAT-P-68b (LOW)
2021-10-27		TESS-0.78 ± 0.92
HAT-P-68b (LOW)
2021-10-22		TESS0.56 ± 0.84
HAT-P-68b (LOW)
2021-10-20		TESS-1.23 ± 1.14
HAT-P-68b (LOW)
2021-10-18		TESS-0.05 ± 0.98
HAT-P-68b (LOW)
2021-10-15		TESS-1.02 ± 1.27
HAT-P-68b (LOW)
2021-10-13		TESS1.1 ± 1.11

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2013-11-17 Lindor et al. 2021 -0.01 ± 0.2
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