exoclock

XO-6b (LOW)

Discovered by: Crouzet et al. 2017

The Star
Simbad
GAIA
2MASS		 BD+73 323
DR2 1114308481600798336
J06191038+7349396
RA 06:19:10.3709 DEC +73:49:39.591
Parallax
4.218 mas		 P.M. RA
-16.643 mas/y		 P.M. DEC
-22.593 mas/y
MagV
10.25		 MagR*
10.016		 MagI*
9.742		 MagJ
9.471		 MagH
9.266		 MagK
9.246
MagG
10.191		 MagGBP
10.425		 MagGRP
9.838
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2459423.748229 ± 7e-05 BJDTDB
Period
3.76499237 ± 4.6e-07 days
Transit Parameters
Crouzet et al. 2017
Rp/Rs
0.11 ± 0.006		 a/Rs
9.08 +0.17 -0.17
 i
86.0 +0.2 -0.2 deg
e
-		 ω
- deg
DepthR*
14.17 mmag		 Duration*
2.9 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Crouzet et al. 2017
Teff
6720.0 +100.0 -100.0 K
 Log(g)
4.04 +0.1 -0.1 cm/s2
 Fe/H
-0.07 +0.1 -0.1 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 115 (11)
O-C -0.48 ± 0.32 minutes
ExoClock Observations (Recent) 69 (11)
Space Observations (Recent) 45 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.11305 ± 0.00013

XO-6b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
XO-6b (LOW)
2026-02-23		Arushi Nath
Arushi Nath		12" Ritchey- Chretien Pro
ASI 2600 Mono Camera / R / 180.0		-0.2 ± 1.87
XO-6b (LOW)
2026-01-05		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / R / 152.0		-3.95 ± 1.44
XO-6b (LOW)
2025-11-02		Gerard Tartalo
Dark Energy Observatory		Ts RC8" Carbon
Player One Ares M (imx533M) / Clear / 120.0		0.76 ± 2.3
XO-6b (LOW)
2025-10-03		Vojtěch Školník
Broumov NM Observatory		Meade LX90 ACF
MI C2-7000A / Clear / 45.0		1.68 ± 1.58
XO-6b (LOW)
2025-09-30		Antonio Marino
OPLA		Newton 200/1000
ATIK 414 / R / 30.0		-4.52 ± 1.87
XO-6b (LOW)
2025-05-10		Daniel Kustrin
Daniel Kustrin		Sky Watcher Classic 200P
ZWO ASI2600MM-Pro / R / 30.0		3.13 ± 2.16
XO-6b (LOW)
2025-04-24		Emanuele Pavoni
Leavitt Observatory		RC
QHY268 / I / 90.0		-0.37 ± 2.3
XO-6b (LOW)
2025-04-24		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 124.0		-0.65 ± 1.32
XO-6b (LOW)
2025-04-09		Nicoletta Iannascoli
OPLAT		Newton 200/1000
ATIK 414 / R / 30.0		-0.56 ± 2.02
XO-6b (LOW)
2025-03-22		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 90.0		-0.9 ± 2.02
XO-6b (LOW)
2025-03-06		Gerold Holtkamp
Private		Newtonian
QHY268M / Lum / 15.0		0.35 ± 2.59
XO-6b (LOW)
2025-02-04		Vojtěch Školník
Hvězdárna v Úpici		SW N200/800
MI C2-7000A / Clear / 45.0		3.28 ± 1.58
XO-6b (LOW)
2025-02-01		Michael Nezel
Celle Observatory		CDK 14
QHY 268M / V / 60.0		0.77 ± 0.89
XO-6b (LOW)
2025-01-20		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / I / 120.0		-2.04 ± 0.82
XO-6b (LOW)
2025-01-17		John Collins
JC_Wrexham		Meade LX200GPS
ASI-290m / Lum / 60.0		-1.87 ± 1.41
XO-6b (LOW)
2025-01-01		David González Martínez
GDAO		CELESTRON C8
ASI ZWO 294 MM PRO / R / 60.0		-0.27 ± 1.58
XO-6b (LOW)
2024-12-21		Alexey Garmash
Lyceum 130		SW Esprit 150ED
ASI1600MM / R / 180.0		1.22 ± 1.35
XO-6b (LOW)
2024-11-29		Lorenzo Blasco
La Granada, Spain		Newton Skywatcher 150/750
SVBONY SV605MC / V / 100.0		1.65 ± 2.16
XO-6b (LOW)
2024-10-29		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / R / 120.0		-2.19 ± 1.73
XO-6b (LOW)
2024-09-11		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-0.31 ± 1.87
XO-6b (LOW)
2024-07-09		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / rpr / 120.0		3.53 ± 1.87
XO-6b (LOW)
2024-07-09		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-4.82 ± 5.04
XO-6b (LOW)
2024-04-20		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
Poseidon-M Pro / R / 110.0		-2.75 ± 2.02
XO-6b (LOW)
2024-04-05		Sacha Foschino
Observatoire des Baronnies Provençales		Planewave 430mm
SVO ASI 6200 MM Pro / R / 60.0		-1.64 ± 1.58
XO-6b (LOW)
2024-01-29		Antonio Ferretti
Anxanum Observatory		Meade LX200 ACF
QHY 268M / R / 120.0		0.32 ± 2.02
XO-6b (LOW)
2023-10-11		Adrian Sonka
Berthelot Observatory		Ritchey Chretien
SBIG STXL-6303 / Clear / 90.0		0.58 ± 1.87
XO-6b (LOW)
2023-08-24		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-1.58 ± 2.02
XO-6b (LOW)
2023-04-02		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 120.0		-0.27 ± 2.02
XO-6b (LOW)
2023-04-02		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / R / 300.0		-0.55 ± 2.59
XO-6b (LOW)
2023-03-18		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		2.53 ± 1.3
XO-6b (LOW)
2023-02-12		Michael Irzyk
Melun		C14
H694 / Clear / 90.0		3.72 ± 1.27
XO-6b (LOW)
2023-01-28		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 90.0		-0.64 ± 0.92
XO-6b (LOW)
2023-01-25		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 30.0		-0.03 ± 1.87
XO-6b (LOW)
2022-12-29		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 40.0		-0.25 ± 2.02
XO-6b (LOW)
2022-11-07		Marco Bastoni
Bellatrix		GSO RC 10''
Moravian G3-16200 / Lum / 100.0		-2.52 ± 1.27
XO-6b (LOW)
2022-11-07		Miguel Ángel Álava Amat
Sarriguren		Meade SC 8"
Asi 1600 MM / Lum / 180.0		-3.34 ± 1.11
XO-6b (LOW)
2022-10-19		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 60.0		-2.05 ± 3.31
XO-6b (LOW)
2022-08-20		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-3.23 ± 1.73
XO-6b (LOW)
2022-06-01		Kevin Johnson
Holbrook Observatory		Meade LX10 EMC
Atik 383L+ / Lum / 90.0		2.16 ± 2.74
XO-6b (LOW)
2022-06-01		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 60.0		0.86 ± 1.73
XO-6b (LOW)
2022-04-14		Adam Popowicz
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / Clear / 15.0		-3.89 ± 4.32
XO-6b (LOW)
2022-03-14		Üllar Kivila
Science Centre AHHAA		TS Optics RC 203/1624
ZWO ASI385MC / Clear / 30.0		-1.96 ± 2.74
XO-6b (LOW)
2022-03-11		Leon Bewersdorff
Observatory Kipshoven (BLEW)		GSO Ritchey-Chrétien
QHY268M-PH / V / 180.0		-5.43 ± 1.87
XO-6b (LOW)
2022-02-27		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / I / 90.0		3.18 ± 1.15
XO-6b (LOW)
2022-02-27		Efrem Frigeni
Resegone Observatory		Corrected Cassegrain CCA
SBIG-STF8300M / R / 90.0		-2.58 ± 1.58
XO-6b (LOW)
2021-12-22		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / I / 120.0		-2.78 ± 0.58
XO-6b (LOW)
2021-11-06		Ronny Freudenberg
Ronny		Meade SC10
Sigma 1603 ME / V / 60.0		-3.78 ± 2.88
XO-6b (LOW)
2021-05-29		Francois Regembal
HRTobs		Astrosib RC360
SBIG STX 16803 / Lum / 60.0		3.81 ± 5.76
XO-6b (LOW)
2021-03-26		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / V / 120.0		0.75 ± 1.01
XO-6b (LOW)
2021-03-26		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 60.0		-1.84 ± 1.87
XO-6b (LOW)
2021-02-23		Stephane Ferratfiat
Observatoire des Baronnies Provençales		T430
Cmos ASI 6200 ZWO / R / 120.0		-3.37 ± 1.58
XO-6b (LOW)
2021-02-20		Ferran Grau Horta
Ca L'Ou		Meade ACF 16''
FLI Proline PL1001 / R / 60.0		-3.1 ± 3.31
XO-6b (LOW)
2020-11-21		Bernhard Wenzel
Vienna		Newton A=20 cm / F=0,9 m
DSLR Canon 200 D - 14 Bit / V / 100.0		3.27 ± 4.32
XO-6b (LOW)
2020-11-17		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / R / 60.0		4.84 ± 1.3
XO-6b (LOW)
2020-10-18		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / I / 120.0		5.18 ± 1.58
XO-6b (LOW)
2020-04-24		Jacques Michelet
Jacques Michelet		Celestron C11 Edge HD
QSI-632 WSG / AstrodonExoPlanet-BB / 45.0		2.36 ± 1.44
XO-6b (LOW)
2020-04-24		Alberto Tomatis
Alto-Observatory		RC
STL 6303 / Lum / 60.0		0.06 ± 2.74
XO-6b (LOW)
2020-04-24		Mauro Caló
Cavallino		RC
SBIG ST10 / Lum / 60.0		-5.41 ± 2.59
XO-6b (LOW)
2020-04-09		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0		1.45 ± 0.86
XO-6b (LOW)
2020-04-09		Danilo Sedita
Osservatorio Sedita Castrofilippo		RC GSO 14"
Moravian G2-1600 / R / 20.0		0.88 ± 2.59
XO-6b (LOW)
2020-04-09		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / I / 90.0		0.88 ± 1.01
XO-6b (LOW)
2020-03-22		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0		3.99 ± 1.87
XO-6b (LOW)
2020-01-21		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 60.0		0.5 ± 1.01
XO-6b (LOW)
2020-01-21		Dimitrios Deligeorgopoulos
Artemis Observatory		GSO RC
Atik 16 HR / R / 60.0		-2.09 ± 1.87
XO-6b (LOW)
2019-09-12		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / V / 60.0		-0.75 ± 1.01
XO-6b (LOW)
2019-04-21		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 60.0		2.29 ± 1.15
XO-6b (LOW)
2018-02-12		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / V / 120.0		1.89 ± 2.3
XO-6b (LOW)
2017-12-10		Nikolaos Paschalis
Nunki Observatory		Officina Stellare RILA 400
SBIG STXL 11002 / R / 60.0		1.13 ± 2.3
XO-6b (LOW)
2017-03-14		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 60.0		-2.68 ± 1.44

Space Observations
Planet
Observation Date		 Mission O-C
minutes
XO-6b (LOW)
2024-01-02		TESS0.61 ± 0.49
XO-6b (LOW)
2023-12-30		TESS-0.02 ± 0.43
XO-6b (LOW)
2023-12-18		TESS0.69 ± 0.5
XO-6b (LOW)
2023-12-11		TESS0.04 ± 0.55
XO-6b (LOW)
2023-12-07		TESS0.39 ± 0.48
XO-6b (LOW)
2023-01-17		TESS-0.11 ± 0.48
XO-6b (LOW)
2023-01-13		TESS0.11 ± 0.45
XO-6b (LOW)
2023-01-02		TESS0.28 ± 0.49
XO-6b (LOW)
2022-12-29		TESS-0.07 ± 0.59
XO-6b (LOW)
2022-12-26		TESS0.7 ± 0.53
XO-6b (LOW)
2022-12-22		TESS-0.02 ± 0.42
XO-6b (LOW)
2022-12-18		TESS-0.16 ± 0.46
XO-6b (LOW)
2022-12-14		TESS-1.95 ± 0.5
XO-6b (LOW)
2022-12-07		TESS-0.36 ± 0.48
XO-6b (LOW)
2022-11-29		TESS0.28 ± 0.45
XO-6b (LOW)
2022-07-05		TESS0.37 ± 0.49
XO-6b (LOW)
2022-07-02		TESS-0.39 ± 0.5
XO-6b (LOW)
2022-06-28		TESS-0.19 ± 0.5
XO-6b (LOW)
2022-06-24		TESS-0.23 ± 0.46
XO-6b (LOW)
2022-06-20		TESS0.76 ± 0.49
XO-6b (LOW)
2022-06-17		TESS-0.54 ± 0.53
XO-6b (LOW)
2021-07-20		TESS0.09 ± 0.49
XO-6b (LOW)
2021-07-16		TESS-0.03 ± 0.46
XO-6b (LOW)
2021-07-13		TESS0.48 ± 0.45
XO-6b (LOW)
2021-07-05		TESS0.38 ± 0.53
XO-6b (LOW)
2021-07-01		TESS-0.59 ± 0.49
XO-6b (LOW)
2021-06-28		TESS-0.22 ± 0.45
XO-6b (LOW)
2020-07-01		TESS0.14 ± 0.5
XO-6b (LOW)
2020-06-27		TESS-0.22 ± 0.53
XO-6b (LOW)
2020-06-24		TESS-0.26 ± 0.49
XO-6b (LOW)
2020-06-20		TESS1.56 ± 0.53
XO-6b (LOW)
2020-06-16		TESS-1.39 ± 0.52
XO-6b (LOW)
2020-06-12		TESS-0.3 ± 0.53
XO-6b (LOW)
2020-01-18		TESS0.28 ± 0.42
XO-6b (LOW)
2020-01-14		TESS0.28 ± 0.5
XO-6b (LOW)
2020-01-10		TESS-0.51 ± 0.46
XO-6b (LOW)
2020-01-02		TESS0.15 ± 0.45
XO-6b (LOW)
2019-12-30		TESS-1.19 ± 0.43
XO-6b (LOW)
2019-12-26		TESS-0.11 ± 0.48
XO-6b (LOW)
2019-12-22		TESS0.83 ± 0.45
XO-6b (LOW)
2019-12-18		TESS0.43 ± 0.46
XO-6b (LOW)
2019-12-15		TESS0.08 ± 0.4
XO-6b (LOW)
2019-12-07		TESS0.05 ± 0.46
XO-6b (LOW)
2019-12-03		TESS0.43 ± 0.46
XO-6b (LOW)
2019-11-30		TESS0.15 ± 0.48

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2013-12-26 Crouzet et al. 2017 -0.89 ± 0.79
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