exoclock

Qatar-6b (LOW)

Discovered by: Alsubai et al. 2018

The Star
Simbad
GAIA
2MASS		 Qatar 6
DR2 1265513389372846848
J14485047+2209093
RA 14:48:50.4764 DEC +22:09:09.160
Parallax
9.887 mas		 P.M. RA
-51.908 mas/y		 P.M. DEC
16.02 mas/y
MagV
11.5		 MagR
11.161		 MagI
10.903		 MagJ
9.712		 MagH
9.307		 MagK
9.226
MagG
11.125		 MagGBP
11.656		 MagGRP
10.494
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2459379.354484 ± 9.3e-05 BJDTDB
Period
3.50620196 ± 6e-07 days
Transit Parameters
Alsubai et al. 2018
Rp/Rs
0.151 ± 0.007		 a/Rs
12.61 +0.22 -0.22
 i
86.01 +0.14 -0.14 deg
e
-		 ω
- deg
DepthR*
19.68 mmag		 Duration*
1.59 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Alsubai et al. 2018
Teff
5052.0 +66.0 -66.0 K
 Log(g)
4.64 +0.01 -0.01 cm/s2
 Fe/H
-0.025 +0.093 -0.093 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 79 (33)
O-C -1.05 ± 0.15 minutes
ExoClock Observations (Recent) 73 (33)
Space Observations (Recent) 6 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 0 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.1507 ± 0.00084

Qatar-6b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
Qatar-6b (LOW)
2025-06-28		Lorenzo Blasco
La Granada, Spain		Newton Skywatcher 150/750
SVBONY SV605MC / V / 180.0		3.59 ± 2.88
Qatar-6b (LOW)
2025-06-28		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / Clear / 60.0		1.67 ± 0.84
Qatar-6b (LOW)
2025-06-28		Ricard Casas
Estartit Obs.		Schmidt-Cassegrain
Moravian Instruments C2-5000A / R / 60.0		1.1 ± 1.34
Qatar-6b (LOW)
2025-06-28		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 80.0		-0.33 ± 0.76
Qatar-6b (LOW)
2025-06-28		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / rpr / 60.0		-0.37 ± 0.71
Qatar-6b (LOW)
2025-06-28		Rodrigo Castillo
Rodrigo-Moro		Meade ACF-SC 10
Atik 383L+ Mono / Lum / 60.0		-1.04 ± 1.17
Qatar-6b (LOW)
2025-06-28		Patrick Farizy
Home Astronomical Observatory Cévennes alt 1230 m		Celestron 8 Schmidt-Cassegrain
ToupTek G3CMOS585C / Clear / 40.0		-1.09 ± 1.09
Qatar-6b (LOW)
2025-06-28		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 60.0		-2.26 ± 0.58
Qatar-6b (LOW)
2025-06-28		Esteban Reina
Observatori de Masquefa		Meade LX200
ZWO ASI 294 MM Pro / R / 120.0		-3.93 ± 1.15
Qatar-6b (LOW)
2025-06-21		Vojtěch Školník
Hvězdárna v Úpici		SW N200/800
MI C2-7000A / Clear / 45.0		-1.25 ± 1.02
Qatar-6b (LOW)
2025-06-21		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / Clear / 60.0		-2.01 ± 0.84
Qatar-6b (LOW)
2025-06-21		Michael Irzyk
melun		C14
altair 2600 / AstrodonExoPlanet-BB / 60.0		-2.9 ± 0.58
Qatar-6b (LOW)
2025-06-21		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / V / 140.0		-4.47 ± 1.58
Qatar-6b (LOW)
2025-06-14		Stefan Brenner
NOE Volkssternwarte AST		Martini-Truss mit Zambuto 11“ f/4,7
Omegon veTEC 571 C / Clear / 120.0		2.52 ± 1.14
Qatar-6b (LOW)
2025-06-07		Moises Portillo
Elguin		GSO
Omegon vetec16000c / AstrodonExoPlanet-BB / 120.0		4.47 ± 2.74
Qatar-6b (LOW)
2025-06-07		Jordi González-Edo
Landete-Kea		C11
ASI 2600MM pro / Lum / 60.0		-3.05 ± 1.01
Qatar-6b (LOW)
2025-05-31		Fabio Filippi
OPLA		Newtonian
Atik 414ex / R / 45.0		0.5 ± 1.27
Qatar-6b (LOW)
2025-05-31		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 45.0		-0.64 ± 1.17
Qatar-6b (LOW)
2025-05-24		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 45.0		1.15 ± 1.22
Qatar-6b (LOW)
2025-05-24		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 120.0		0.2 ± 0.94
Qatar-6b (LOW)
2025-05-21		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / V / 90.0		-5.74 ± 1.58
Qatar-6b (LOW)
2025-05-17		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 90.0		1.46 ± 1.09
Qatar-6b (LOW)
2025-05-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 60.0		-1.49 ± 0.69
Qatar-6b (LOW)
2025-05-10		Riccardo Zancan
Riccardo		Celestron C11
ASI-1600-MM / R / 60.0		0.73 ± 1.18
Qatar-6b (LOW)
2025-05-10		Wilfried Hartmann
Observatory Stargate, Austria		Takahashi Epsilon 130D
ASI2600MM-Pro / R / 180.0		-4.15 ± 2.02
Qatar-6b (LOW)
2025-04-16		Darryl Madison
Ajijic Observatory		Celestron CPC 800 Edge HD
ZWO2400MC / Clear / 90.0		-9.46 ± 3.17
Qatar-6b (LOW)
2025-04-09		Darryl Madison
Ajijic Observatory		Celestron CPC 800 Edge HD
ZWO2400MC / Clear / 90.0		-4.73 ± 1.35
Qatar-6b (LOW)
2025-04-02		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 45.0		-4.61 ± 1.14
Qatar-6b (LOW)
2025-03-22		Yen-Hsing Lin
Starry House Observatory		Mewlon 300 CRS
ASI 6200MM Pro / Lum / 60.0		-3.33 ± 0.63
Qatar-6b (LOW)
2025-03-08		Yen-Hsing Lin
Starry House Observatory		Mewlon 300 CRS
ASI 6200MM Pro / Lum / 60.0		-0.38 ± 0.58
Qatar-6b (LOW)
2025-02-05		Christian Sartini
Chris31		C9 xlt
Asi533mc / R / 60.0		1.83 ± 1.58
Qatar-6b (LOW)
2025-02-05		John Collins
JC_Wrexham		Meade LX200GPS
ASI-290m / Lum / 30.0		-2.29 ± 0.65
Qatar-6b (LOW)
2025-01-15		Jordi Gallego
Fosca Nit Observatory		Takahashi TOA-150
STL-11000 M / rpr / 150.0		-2.47 ± 2.3
Qatar-6b (LOW)
2024-08-06		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-5.8 ± 5.04
Qatar-6b (LOW)
2024-07-30		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 45.0		-1.33 ± 1.73
Qatar-6b (LOW)
2024-07-23		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-0.6 ± 2.02
Qatar-6b (LOW)
2024-06-22		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 120.0		0.43 ± 2.88
Qatar-6b (LOW)
2024-05-18		George Iwaszek
Iwaszek Private Observatory		Planewave CDK-17
Moravian C5-100 / V / 115.0		0.89 ± 0.62
Qatar-6b (LOW)
2024-04-02		Yen-Hsing Lin
NTHU Observatory		Showa 10"
ASI6200MM Pro / Lum / 120.0		4.6 ± 0.88
Qatar-6b (LOW)
2024-04-02		Yen-Hsing Lin
NTHU TAT		GSO RC10
Apogee AltaF-6: KAF1001E / R / 60.0		-1.67 ± 1.43
Qatar-6b (LOW)
2024-03-16		Miguel Ángel Álava Amat
Sarriguren		Meade SC 8"
Asi 1600 MM / rpr / 180.0		0.75 ± 1.21
Qatar-6b (LOW)
2024-03-16		David Bennett
Rickford Observatory		GSO RC
ZWO ASI2600MM Pro / R / 60.0		-1.55 ± 0.69
Qatar-6b (LOW)
2024-02-03		Antonio Ferretti
Anxanum Observatory		Meade LX200 ACF
QHY 268M / R / 180.0		-1.99 ± 1.41
Qatar-6b (LOW)
2023-05-26		Yen-Hsing Lin
NTHU Observatory		Showa 10"
ASI6200MM Pro / Lum / 60.0		2.91 ± 1.58
Qatar-6b (LOW)
2023-05-16		Marcelo Emilio
Pico dos Dias		Boller & Chivens
Ixon 4335 / R / 25.0		-0.54 ± 0.36
Qatar-6b (LOW)
2023-05-02		Adam Popowicz
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / R / 40.0		1.96 ± 0.98
Qatar-6b (LOW)
2023-04-04		Miguel Ángel Álava Amat
Sarriguren		Meade SC 8"
Asi 1600 MM / rpr / 180.0		2.82 ± 1.05
Qatar-6b (LOW)
2023-04-04		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		1.8 ± 1.44
Qatar-6b (LOW)
2023-04-04		David Wright
Yorick (private observatory)		10" Ritchey-Chretien
QSI 683WSG-8 / R / 120.0		1.36 ± 1.08
Qatar-6b (LOW)
2023-03-28		Sacha Foschino
Observatoire des Baronnies Provençales		Planewave 430mm
SVO ASI 6200 MM Pro / Clear / 120.0		1.49 ± 0.62
Qatar-6b (LOW)
2023-03-28		Emanuele Pavoni
Leavitt Observatory		RC
QHY268 / R / 100.0		0.12 ± 1.4
Qatar-6b (LOW)
2023-03-28		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0		-1.35 ± 0.6
Qatar-6b (LOW)
2023-03-20		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / Clear / 120.0		-0.09 ± 0.69
Qatar-6b (LOW)
2023-02-27		Andre Kovacs
Moletai Astronomical Observatory (MAO)		35 cm Maksutov f/3.5
Apogee Alta U47 / R / 45.0		0.4 ± 0.62
Qatar-6b (LOW)
2023-02-17		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 180.0		-1.77 ± 1.58
Qatar-6b (LOW)
2023-02-17		Charles Miller
Miller Observatory		Meade 12" LX850
QHY268M / R / 45.0		-2.0 ± 0.71
Qatar-6b (LOW)
2022-06-17		Marco Iozzi
H.O.B. Astronomical Observatory (MPC code L63)		Schmidt Cassegrain
CCD ATIK 383L+ / R / 100.0		-3.73 ± 1.87
Qatar-6b (LOW)
2022-06-09		Enrique Arce
Vallbona Observatory		Ritchey Chretien
ZWO ASI 294 MM PRO / Lum / 60.0		5.78 ± 2.45
Qatar-6b (LOW)
2022-05-19		Dominique DANIEL
La Montjoie		Celestron C8
Camera CMOS ZWO ASI2600MC pro (color) / Clear / 120.0		-2.99 ± 2.02
Qatar-6b (LOW)
2022-05-05		Vanessa Neumann
TURMX Observatory		CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / rpr / 120.0		-0.82 ± 1.01
Qatar-6b (LOW)
2022-04-28		Emmanuel THIERS
Astronomade OBP		Skywatcher 120ed Equinox
Zwo Asi 071 Pro MC / Clear / 120.0		5.24 ± 2.3
Qatar-6b (LOW)
2022-04-28		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
FLI Kepler CMOS 4040 / R / 90.0		1.49 ± 0.86
Qatar-6b (LOW)
2022-04-28		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / R / 60.0		1.35 ± 0.43
Qatar-6b (LOW)
2022-04-28		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		-0.52 ± 0.43
Qatar-6b (LOW)
2022-04-28		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		-1.39 ± 1.15
Qatar-6b (LOW)
2022-04-21		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		2.65 ± 2.02
Qatar-6b (LOW)
2022-04-21		Kevin Johnson
Holbrook Observatory		Meade LX10 EMC
Atik 383L+ / Lum / 60.0		-1.81 ± 1.15
Qatar-6b (LOW)
2022-04-14		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		-1.95 ± 2.74
Qatar-6b (LOW)
2022-04-14		Stefano Lora
MarSEC		Ritchey Chrétien
Moravian G2 Mark II / Clear / 60.0		-2.81 ± 1.01
Qatar-6b (LOW)
2022-02-24		Taewoo Kim
Deokheung Optical Astronomy Observatory		NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 30.0		-0.24 ± 0.26
Qatar-6b (LOW)
2022-02-10		Taewoo Kim
Deokheung Optical Astronomy Observatory		NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 60.0		-0.27 ± 0.36
Qatar-6b (LOW)
2022-01-17		Robert Roth
TURMX Observatory		CFF Telescopes 160mm APO
ZWO ASI6200MM Pro / Lum / 60.0		0.42 ± 0.86
Qatar-6b (LOW)
2022-01-17		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 100.0		0.14 ± 0.72

Space Observations
Planet
Observation Date		 Mission O-C
minutes
Qatar-6b (LOW)
2022-05-16		TESS-0.33 ± 0.5
Qatar-6b (LOW)
2022-05-02		TESS0.38 ± 0.5
Qatar-6b (LOW)
2022-04-21		TESS-0.52 ± 0.43
Qatar-6b (LOW)
2022-04-18		TESS0.19 ± 0.43
Qatar-6b (LOW)
2022-04-07		TESS-0.39 ± 0.43
Qatar-6b (LOW)
2022-04-04		TESS0.71 ± 0.46

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2021-03-04 Maciejewski et al. 2023 -0.52 ± 0.43
2021-02-18 Maciejewski et al. 2023 -0.52 ± 0.25
2019-05-29 Maciejewski et al. 2023 -0.5 ± 0.42
2019-05-22 Maciejewski et al. 2023 0.18 ± 0.37
2019-05-07 Maciejewski et al. 2023 -0.64 ± 0.99
2019-04-30 Maciejewski et al. 2023 0.55 ± 0.29
2019-04-23 Maciejewski et al. 2023 1.76 ± 0.96
2019-04-09 Maciejewski et al. 2023 -1.19 ± 0.77
2017-03-24 Alsubai et al. 2018 0.1 ± 0.69
2017-03-10 Alsubai et al. 2018 0.35 ± 1.09
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