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. 2022
Mid-time
2459111.81975 ± 0.00011 BJDTDB
Period
2.8641356 ± 1e-06 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) 56 (7)
O-C -1.96 ± 0.51 minutes
ExoClock Observations (Recent) 28 (7)
Space Observations (Recent) 27 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 1 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.09334 ± 0.00022

XO-7b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
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		0.23 ± 5.18
XO-7b (LOW)
2024-08-29		John Collins
JC_Wrexham		Meade LX200GPS
ASI-290m / rpr / 60.0		0.06 ± 2.88
XO-7b (LOW)
2024-06-07		Davide Pica
Private Observatory		Celestron C9.25
QHY 294 M Pro / Clear / 24.0		-1.76 ± 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		-1.84 ± 3.89
XO-7b (LOW)
2024-02-20		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
Poseidon-M Pro / R / 90.0		0.04 ± 3.89
XO-7b (LOW)
2023-09-29		David Quiles
David Quiles Observatory		Celestron EDGEHD 800
Omegon veTEC 571M / I / 180.0		1.16 ± 2.02
XO-7b (LOW)
2023-09-29		Mercedes Correa
Sirius B		Meade
Moravian G2 1600 / R / 90.0		-6.32 ± 1.44
XO-7b (LOW)
2023-09-06		Vojtěch Školník
Broumov NM Observatory		Meade LX90 ACF
MI C2-7000A / Clear / 30.0		-6.49 ± 3.02
XO-7b (LOW)
2023-07-26		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
Poseidon-M Pro / R / 60.0		-2.12 ± 3.46
XO-7b (LOW)
2023-07-05		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 45.0		1.05 ± 1.44
XO-7b (LOW)
2023-07-05		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		-4.79 ± 3.46
XO-7b (LOW)
2023-05-23		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
Zwo 2600mm / Clear / 30.0		-2.72 ± 2.02
XO-7b (LOW)
2023-05-23		jean paul vergne
CH9-gapra		Ritchey Chretien
zwo 294mm pro / Lum / 60.0		-7.47 ± 2.88
XO-7b (LOW)
2023-05-03		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / R / 120.0		-1.48 ± 1.41
XO-7b (LOW)
2023-05-03		Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY		Newton T305
QSI 683WS / R / 120.0		-4.67 ± 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		-2.55 ± 3.6
XO-7b (LOW)
2022-12-08		Kevin Johnson
Holbrook Observatory		Meade LX10 EMC
Atik 383L+ / R / 90.0		-1.48 ± 2.16
XO-7b (LOW)
2022-10-29		Stefano Lora
MarSEC		Ritchey Chrétien
Moravian G2 Mark II / R / 90.0		2.7 ± 2.74
XO-7b (LOW)
2022-10-06		Ivo Peretto
MarSEC Marana Space Explorer Center		R-C
Moravia G2-1600 MkII / Clear / 60.0		-0.49 ± 1.73
XO-7b (LOW)
2022-05-10		Francesco di Biase
Cosmos		GSO RC12"
Moravian G2-4000 KAI4022 sensor / R / 60.0		0.88 ± 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		-1.74 ± 1.15
XO-7b (LOW)
2022-04-18		Leon Bewersdorff
Observatory Kipshoven (BLEW)		GSO Ritchey-Chrétien
QHY268M-PH / V / 120.0		-5.34 ± 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		0.35 ± 1.87
XO-7b (LOW)
2022-03-06		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
FLI Kepler CMOS 4040 / R / 120.0		-1.4 ± 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		2.39 ± 3.31
XO-7b (LOW)
2022-01-04		David Wright
Yorick (private observatory)		10" Ritchey-Chretien
QSI 683WSG-8 / R / 90.0		1.98 ± 3.46
XO-7b (LOW)
2021-11-22		Robert Roth
TURMX Observatory		CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / rpr / 60.0		-0.27 ± 3.31
XO-7b (LOW)
2021-11-22		David Wright
Yorick (private observatory)		10" Ritchey-Chretien
QSI 683WSG-8 / R / 75.0		-1.86 ± 2.16

Space Observations
Planet
Observation Date		 Mission O-C
minutes
XO-7b (LOW)
2021-07-22		TESS-0.91 ± 0.62
XO-7b (LOW)
2021-07-19		TESS0.31 ± 0.66
XO-7b (LOW)
2021-07-17		TESS1.33 ± 0.68
XO-7b (LOW)
2021-07-14		TESS-1.37 ± 0.68
XO-7b (LOW)
2021-07-11		TESS0.45 ± 0.79
XO-7b (LOW)
2021-07-08		TESS0.21 ± 0.75
XO-7b (LOW)
2021-07-05		TESS-1.56 ± 0.71
XO-7b (LOW)
2021-07-02		TESS2.06 ± 0.76
XO-7b (LOW)
2021-06-29		TESS-0.05 ± 0.78
XO-7b (LOW)
2021-06-27		TESS-0.07 ± 0.73
XO-7b (LOW)
2020-07-03		TESS0.15 ± 0.72
XO-7b (LOW)
2020-07-01		TESS-1.47 ± 0.76
XO-7b (LOW)
2020-06-28		TESS-0.2 ± 0.75
XO-7b (LOW)
2020-06-25		TESS-1.11 ± 0.79
XO-7b (LOW)
2020-06-19		TESS1.01 ± 0.81
XO-7b (LOW)
2020-06-16		TESS-0.54 ± 0.66
XO-7b (LOW)
2020-06-13		TESS0.17 ± 0.71
XO-7b (LOW)
2020-06-11		TESS-1.06 ± 0.75
XO-7b (LOW)
2020-06-08		TESS0.68 ± 0.73
XO-7b (LOW)
2020-06-05		TESS0.85 ± 0.75
XO-7b (LOW)
2020-06-02		TESS-0.43 ± 0.66
XO-7b (LOW)
2020-05-30		TESS0.39 ± 0.82
XO-7b (LOW)
2020-05-27		TESS0.47 ± 0.68
XO-7b (LOW)
2020-05-24		TESS0.42 ± 0.72
XO-7b (LOW)
2020-05-22		TESS0.01 ± 0.85
XO-7b (LOW)
2020-05-19		TESS1.05 ± 0.75
XO-7b (LOW)
2020-05-16		TESS0.46 ± 0.72

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2017-06-12 Crouzet et al. 2020 -0.25 ± 0.65
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