exoclock

XO-7b (LOW)

Discovered by: Crouzet et al. 2020

The Star
Simbad
GAIA
2MASS		 BD+85 317
DR2 2303332931542914048
J18295488+8513593
RA 18:29:54.9290 DEC +85:13:59.575
Parallax
4.242 mas		 P.M. RA
-15.354 mas/y		 P.M. DEC
24.461 mas/y
MagV
10.52		 MagR*
10.245		 MagI*
9.856		 MagJ
9.557		 MagH
9.308		 MagK
9.241
MagG
10.457		 MagGBP
10.779		 MagGRP
10.009
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2459567.216832 ± 7.2e-05 BJDTDB
Period
2.86413332 ± 4.7e-07 days
Transit Parameters
Crouzet et al. 2020
Rp/Rs
0.09532 ± 0.00093		 a/Rs
6.43 +0.14 -0.14
 i
83.45 +0.29 -0.29 deg
e
-		 ω
- deg
DepthR*
10.06 mmag		 Duration*
2.79 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Crouzet et al. 2020
Teff
6250.0 +100.0 -100.0 K
 Log(g)
4.25 +0.02 -0.02 cm/s2
 Fe/H
0.432 +0.057 -0.057 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 122 (17)
O-C -0.64 ± 0.44 minutes
ExoClock Observations (Recent) 52 (17)
Space Observations (Recent) 69 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.09306 ± 0.00014

XO-7b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
XO-7b (LOW)
2026-01-21		Vojtěch Školník
Hvězdárna v Úpici		SW N200/800
MI C2-7000A / Clear / 30.0		-4.64 ± 1.87
XO-7b (LOW)
2025-12-29		Patrick Farizy
Home Astronomical Observatory Cévennes alt 1230 m		Celestron 8 Schmidt-Cassegrain
ToupTek G3CMOS585C / Clear / 35.0		3.08 ± 2.74
XO-7b (LOW)
2025-10-27		Joan Aragones
Barcelona.Joan.C8		Celestron C8
ZWO ASI1600 monocrome / Lum / 120.0		-6.66 ± 3.46
XO-7b (LOW)
2025-10-02		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 90.0		2.84 ± 2.74
XO-7b (LOW)
2025-09-14		Xavier Bros
Anysllum		Newton Orion Optics 14" f4.6
ASI2600MM Pro / V / 40.0		-0.04 ± 2.16
XO-7b (LOW)
2025-09-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 45.0		7.64 ± 3.31
XO-7b (LOW)
2025-09-12		LES BRAND
BLEB		GSO RC8
ZWO ASI1600mm pro / V / 90.0		2.89 ± 2.45
XO-7b (LOW)
2025-08-22		Lionel Rousselot
Private observatory Vierzon		Newton 250/740
ZWO 533 monochrome / rpr / 30.0		-1.24 ± 1.87
XO-7b (LOW)
2025-06-20		Wilfried Hartmann
Observatory Stargate, Austria		Takahashi Epsilon 130D
ASI2600MM-Pro / R / 120.0		-7.09 ± 3.31
XO-7b (LOW)
2025-05-14		Alexey Garmash
Lyceum 130		EdgeHD C11
ASI2600MM pro / rpr / 180.0		0.99 ± 0.96
XO-7b (LOW)
2025-05-11		Wilfried Hartmann
Observatory Stargate, Austria		Takahashi Epsilon 130D
ASI2600MM-Pro / R / 143.0		1.79 ± 3.6
XO-7b (LOW)
2025-05-09		David Bennett
Rickford Observatory		GSO RC
ZWO ASI2600MM Pro / R / 60.0		1.11 ± 1.87
XO-7b (LOW)
2025-05-09		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 45.0		-3.93 ± 3.31
XO-7b (LOW)
2025-04-18		Antonio Marino
OPLA		Newton 200/1000
ATIK 414 / R / 15.0		3.61 ± 4.03
XO-7b (LOW)
2025-03-04		David Bennett
Rickford Observatory		GSO RC
ZWO ASI2600MM Pro / R / 60.0		-5.27 ± 1.73
XO-7b (LOW)
2025-03-01		Charles Miller
Miller Observatory		Meade 12" LX850
QHY268M / Clear / 20.0		-3.06 ± 7.92
XO-7b (LOW)
2025-02-14		Deborah Smith
El Olivar, Gergal, Spain		TS-Optics UNC Newtonian 12"
ASI533MM / I / 60.0		3.51 ± 3.02
XO-7b (LOW)
2024-12-16		Jordi Gallego
Fosca Nit Observatory		Takahashi TOA-150
STL-11000 M / rpr / 90.0		5.1 ± 4.03
XO-7b (LOW)
2024-12-16		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-1.38 ± 3.46
XO-7b (LOW)
2024-12-16		Livia Moretti
Leavitt Observatory		Ritchey-Chrétien 10'' f/8
QHY268 / R / 90.0		-4.55 ± 3.74
XO-7b (LOW)
2024-12-16		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / I / 120.0		-5.41 ± 2.74
XO-7b (LOW)
2024-11-03		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0		-3.54 ± 1.58
XO-7b (LOW)
2024-10-31		Djaffar Ould Abdeslam
Blaquoerre		Quatro 250/100 (horizon dégagé)
SBIG ST8300 / Clear / 50.0		-0.62 ± 1.73
XO-7b (LOW)
2024-10-11		Snaevarr Guðmundsson
Ness Observatory		Meade LX 200 ACF Schmidt-Cassegrain
SBIG STL 11000M / AstrodonExoPlanet-BB / 45.0		-5.32 ± 3.89
XO-7b (LOW)
2024-09-21		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		2.07 ± 5.18
XO-7b (LOW)
2024-08-29		John Collins
JC_Wrexham		Meade LX200GPS
ASI-290m / rpr / 60.0		1.88 ± 2.88
XO-7b (LOW)
2024-06-07		Davide Pica
Private Observatory		Celestron C9.25
QHY 294 M Pro / Clear / 24.0		-0.04 ± 1.87
XO-7b (LOW)
2024-05-18		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-0.14 ± 3.89
XO-7b (LOW)
2024-02-20		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
Poseidon-M Pro / R / 90.0		1.64 ± 3.89
XO-7b (LOW)
2023-09-29		David Quiles
David Quiles Observatory		Celestron EDGEHD 800
Omegon veTEC 571M / I / 180.0		2.6 ± 2.02
XO-7b (LOW)
2023-09-29		Mercedes Correa
Sirius B		Meade
Moravian G2 1600 / R / 90.0		-4.89 ± 1.44
XO-7b (LOW)
2023-09-06		Vojtěch Školník
Broumov NM Observatory		Meade LX90 ACF
MI C2-7000A / Clear / 30.0		-5.08 ± 3.02
XO-7b (LOW)
2023-07-26		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
Poseidon-M Pro / R / 60.0		-0.76 ± 3.46
XO-7b (LOW)
2023-07-05		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 45.0		2.38 ± 1.44
XO-7b (LOW)
2023-07-05		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		-3.45 ± 3.46
XO-7b (LOW)
2023-05-23		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
Zwo 2600mm / Clear / 30.0		-1.43 ± 2.02
XO-7b (LOW)
2023-05-23		jean paul vergne
CH9-gapra		Ritchey Chretien
zwo 294mm pro / Lum / 60.0		-6.19 ± 2.88
XO-7b (LOW)
2023-05-03		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / R / 120.0		-0.22 ± 1.41
XO-7b (LOW)
2023-05-03		Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY		Newton T305
QSI 683WS / R / 120.0		-3.4 ± 2.45
XO-7b (LOW)
2023-03-19		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-1.34 ± 3.6
XO-7b (LOW)
2022-12-08		Kevin Johnson
Holbrook Observatory		Meade LX10 EMC
Atik 383L+ / R / 90.0		-0.38 ± 2.16
XO-7b (LOW)
2022-10-29		Stefano Lora
MarSEC		Ritchey Chrétien
Moravian G2 Mark II / R / 90.0		3.75 ± 2.74
XO-7b (LOW)
2022-10-06		Ivo Peretto
MarSEC Marana Space Explorer Center		R-C
Moravia G2-1600 MkII / Clear / 60.0		0.53 ± 1.73
XO-7b (LOW)
2022-05-10		Francesco di Biase
Cosmos		GSO RC12"
Moravian G2-4000 KAI4022 sensor / R / 60.0		1.73 ± 2.45
XO-7b (LOW)
2022-04-18		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0		-0.91 ± 1.15
XO-7b (LOW)
2022-04-18		Leon Bewersdorff
Observatory Kipshoven (BLEW)		GSO Ritchey-Chrétien
QHY268M-PH / V / 120.0		-4.51 ± 1.73
XO-7b (LOW)
2022-03-28		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		1.15 ± 1.87
XO-7b (LOW)
2022-03-06		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
FLI Kepler CMOS 4040 / R / 120.0		-0.62 ± 1.73
XO-7b (LOW)
2022-01-22		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		3.12 ± 3.31
XO-7b (LOW)
2022-01-04		David Wright
Yorick (private observatory)		10" Ritchey-Chretien
QSI 683WSG-8 / R / 90.0		2.69 ± 3.46
XO-7b (LOW)
2021-11-22		Robert Roth
TURMX Observatory		CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / rpr / 60.0		0.39 ± 3.31
XO-7b (LOW)
2021-11-22		David Wright
Yorick (private observatory)		10" Ritchey-Chretien
QSI 683WSG-8 / R / 75.0		-1.2 ± 2.16

Space Observations
Planet
Observation Date		 Mission O-C
minutes
XO-7b (LOW)
2024-01-02		TESS1.81 ± 0.81
XO-7b (LOW)
2023-12-30		TESS0.57 ± 0.66
XO-7b (LOW)
2023-12-19		TESS-0.43 ± 0.62
XO-7b (LOW)
2023-12-16		TESS-1.42 ± 0.78
XO-7b (LOW)
2023-12-13		TESS-0.62 ± 0.82
XO-7b (LOW)
2023-01-17		TESS0.52 ± 0.76
XO-7b (LOW)
2023-01-15		TESS0.7 ± 0.76
XO-7b (LOW)
2023-01-12		TESS1.54 ± 0.71
XO-7b (LOW)
2023-01-03		TESS-0.32 ± 0.69
XO-7b (LOW)
2022-12-31		TESS-0.65 ± 0.71
XO-7b (LOW)
2022-12-28		TESS-0.53 ± 0.69
XO-7b (LOW)
2022-12-26		TESS0.73 ± 0.73
XO-7b (LOW)
2022-12-20		TESS-1.36 ± 0.63
XO-7b (LOW)
2022-12-17		TESS-0.25 ± 0.66
XO-7b (LOW)
2022-12-14		TESS-0.84 ± 0.72
XO-7b (LOW)
2022-12-08		TESS0.1 ± 0.69
XO-7b (LOW)
2022-12-06		TESS-0.5 ± 0.71
XO-7b (LOW)
2022-11-30		TESS-1.43 ± 0.68
XO-7b (LOW)
2022-07-07		TESS-0.05 ± 0.75
XO-7b (LOW)
2022-07-04		TESS1.32 ± 0.81
XO-7b (LOW)
2022-07-01		TESS-0.1 ± 0.66
XO-7b (LOW)
2022-06-28		TESS1.42 ± 0.76
XO-7b (LOW)
2022-06-22		TESS0.77 ± 0.71
XO-7b (LOW)
2022-06-20		TESS-1.72 ± 0.89
XO-7b (LOW)
2022-06-17		TESS0.56 ± 0.76
XO-7b (LOW)
2022-06-14		TESS0.35 ± 0.68
XO-7b (LOW)
2022-06-11		TESS-0.19 ± 0.71
XO-7b (LOW)
2022-06-08		TESS-1.04 ± 0.75
XO-7b (LOW)
2022-06-05		TESS-0.14 ± 0.78
XO-7b (LOW)
2022-06-02		TESS0.48 ± 0.69
XO-7b (LOW)
2022-05-28		TESS-0.21 ± 0.75
XO-7b (LOW)
2022-05-25		TESS0.37 ± 0.72
XO-7b (LOW)
2022-05-22		TESS0.53 ± 0.72
XO-7b (LOW)
2022-05-19		TESS0.23 ± 0.73
XO-7b (LOW)
2022-01-24		TESS0.74 ± 0.59
XO-7b (LOW)
2022-01-22		TESS0.24 ± 0.63
XO-7b (LOW)
2022-01-19		TESS0.72 ± 0.62
XO-7b (LOW)
2022-01-16		TESS-0.07 ± 0.72
XO-7b (LOW)
2022-01-10		TESS-0.7 ± 0.69
XO-7b (LOW)
2022-01-07		TESS0.28 ± 0.71
XO-7b (LOW)
2022-01-04		TESS-0.55 ± 0.66
XO-7b (LOW)
2022-01-02		TESS-0.11 ± 0.68
XO-7b (LOW)
2021-07-22		TESS-0.7 ± 0.63
XO-7b (LOW)
2021-07-19		TESS-0.28 ± 0.71
XO-7b (LOW)
2021-07-17		TESS1.98 ± 0.68
XO-7b (LOW)
2021-07-14		TESS-1.37 ± 0.72
XO-7b (LOW)
2021-07-11		TESS1.01 ± 0.81
XO-7b (LOW)
2021-07-08		TESS0.27 ± 0.75
XO-7b (LOW)
2021-07-05		TESS-0.47 ± 0.75
XO-7b (LOW)
2021-07-02		TESS2.51 ± 0.76
XO-7b (LOW)
2021-06-29		TESS-0.1 ± 0.76
XO-7b (LOW)
2021-06-27		TESS-0.06 ± 0.76
XO-7b (LOW)
2020-07-03		TESS0.22 ± 0.71
XO-7b (LOW)
2020-07-01		TESS-1.63 ± 0.73
XO-7b (LOW)
2020-06-28		TESS-0.11 ± 0.75
XO-7b (LOW)
2020-06-25		TESS-1.04 ± 0.73
XO-7b (LOW)
2020-06-19		TESS1.04 ± 0.78
XO-7b (LOW)
2020-06-16		TESS-0.52 ± 0.66
XO-7b (LOW)
2020-06-13		TESS0.2 ± 0.73
XO-7b (LOW)
2020-06-11		TESS-1.01 ± 0.76
XO-7b (LOW)
2020-06-08		TESS0.67 ± 0.75
XO-7b (LOW)
2020-06-05		TESS0.85 ± 0.75
XO-7b (LOW)
2020-06-02		TESS0.07 ± 0.66
XO-7b (LOW)
2020-05-30		TESS0.44 ± 0.81
XO-7b (LOW)
2020-05-27		TESS0.56 ± 0.68
XO-7b (LOW)
2020-05-24		TESS0.35 ± 0.71
XO-7b (LOW)
2020-05-22		TESS0.02 ± 0.85
XO-7b (LOW)
2020-05-19		TESS1.08 ± 0.75
XO-7b (LOW)
2020-05-16		TESS0.49 ± 0.75

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2017-06-12 Crouzet et al. 2020 -1.45 ± 0.65
© 2019-2025 ExoClock Project - Privacy policy - Contact: exoclockproject@gmail.com
The ExoClock Project is managed by the PULSAR Non-profit Civil Law Company / Address: Pipsou 18A, 54627 Thessaloniki, Greece / VAT: EL996400186 / Tax Office: E Thessaloniki