exoclock

Qatar-5b (LOW)

Discovered by: Alsubai et al. 2017

The Star
Simbad
GAIA
2MASS
Qatar 5
DR2 382111248777193216
J00281293+4203407
RA 00:28:12.9437 DEC +42:03:40.943
Parallax
2.693 mas
P.M. RA
0.919 mas/y
P.M. DEC
-6.509 mas/y
MagV
12.82
MagR
12.86
MagI*
12.018
MagJ
11.348
MagH
11.089
MagK
10.956
MagG
12.524
MagGBP
12.915
MagGRP
11.987
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457593.01599 ± 0.00014 BJDTDB
Period
2.87929997 ± 7e-07 days

Transit Parameters
Alsubai et al. 2017
Rp/Rs
0.1061 ± 0.0013
a/Rs
8.3 +0.3 -0.3
i
88.7 +0.9 -0.9 deg
e
-
ω
- deg
DepthR*
14.94 mmag
Duration*
2.9 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Alsubai et al. 2017
Teff
5747.0 +49.0 -49.0 K
Log(g)
4.43 +0.04 -0.04 cm/s2
Fe/H
0.38 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 7.53"
Total Observations (Recent) 40 (9)
O-C -3.52 ± 0.39 minutes
ExoClock Observations (Recent) 31 (9)
Space Observations (Recent) 6 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 3 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.1035 ± 0.0012

Qatar-5b


ExoClock Observations

Planet
Observation Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
Qatar-5b (LOW)
2023-11-30
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 200.0
-0.67 ± 2.02
Qatar-5b (LOW)
2023-11-30
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 200.0
-2.21 ± 1.34
Qatar-5b (LOW)
2023-11-30
David Bennett
Rickford Observatory
GSO RC
ZWO ASI2600MM Pro / Lum / 60.0
-5.56 ± 1.07
Qatar-5b (LOW)
2023-11-30
Ian Sharp
PixelSkies
Celestron C11 Edge HD
Starlight Xpress Trius Pro SX694 / R / 120.0
-10.6 ± 2.3
Qatar-5b (LOW)
2023-11-07
Simon Dawes
William James II
Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Clear / 300.0
-3.26 ± 2.16
Qatar-5b (LOW)
2023-11-07
Mark Salisbury
POST
Orion Optics ODK
SBIG ST-10 XME / R / 240.0
-3.56 ± 0.95
Qatar-5b (LOW)
2023-10-27
Bryan Martin
Tiger Butte Observatory Remote
AG Optical IDK
ZWO ASI 294 / AstrodonExoPlanet-BB / 120.0
-7.43 ± 4.61
Qatar-5b (LOW)
2023-08-27
Dim Stouraitis
Galilaios
SCT
SXVF-H9 Starlight-Xpress / R / 150.0
-5.85 ± 3.46
Qatar-5b (LOW)
2023-08-25
Mark van der Grijp
Trevinca Observatory
William Optics FLT132
Poseidon-M Pro / Lum / 30.0
-0.95 ± 2.3
Qatar-5b (LOW)
2022-11-18
Vikrant Kumar Agnihotri
Cepheid Observatory India
GSO Ritchey–Chrétien
SX-35 TRIUS mono (KAF11002) / Lum / 120.0
-3.55 ± 2.16
Qatar-5b (LOW)
2022-11-10
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 120.0
1.2 ± 3.17
Qatar-5b (LOW)
2022-10-20
Simon Dawes
William James II Observatory
Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 180.0
-6.43 ± 2.88
Qatar-5b (LOW)
2022-10-18
Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"
NEWTON 410/1710
Custom made with KAF-1603ME CCD sensor / R / 80.0
2.5 ± 3.31
Qatar-5b (LOW)
2022-10-18
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / R / 120.0
-1.97 ± 1.58
Qatar-5b (LOW)
2022-09-04
Dim Stouraitis
Galilaios
SCT
SXVF-H9 Starlight-Xpress / R / 100.0
-8.88 ± 3.17
Qatar-5b (LOW)
2022-09-01
Vojtěch Školník
Broumov NM Observatory
Meade LX90 ACF
MI C2-7000A / Clear / 120.0
-9.89 ± 2.16
Qatar-5b (LOW)
2022-08-09
Martin Crow
Burnham Observatory
Celestron C9.25
SX694 mono / Clear / 60.0
-0.38 ± 2.45
Qatar-5b (LOW)
2022-08-07
David Molina
Anunaki Observatory Z51
Schmidt Cassegrain
SBIG ST-9xe / Clear / 120.0
-1.1 ± 1.73
Qatar-5b (LOW)
2022-08-07
Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 150.0
-1.54 ± 1.3
Qatar-5b (LOW)
2022-08-07
Paul De Backer
PaulDB
RC10
ASI294MM-Pro / R / 230.0
-2.98 ± 1.87
Qatar-5b (LOW)
2022-08-07
Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY
Newton T305
QSI 683WS / Lum / 120.0
-4.85 ± 1.73
Qatar-5b (LOW)
2022-01-11
Tõnis Eenmäe
Tartu Observatory
Planewave CDK 12.5
Apogee Alta U42 / R / 120.0
3.36 ± 2.02
Qatar-5b (LOW)
2021-10-28
Bernhard Wenzel
Vienna Little Telescope - Department of Astrophysics
Cassegrain A=80 cm F=6,64 m
FLI Proline PL16803 / V / 60.0
-3.66 ± 0.75
Qatar-5b (LOW)
2021-08-17
Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0
-0.82 ± 1.15
Qatar-5b (LOW)
2021-08-15
Vojtěch Školník
Hvezdarna Valasske Mezirici
Meade LX90 ACF
MI C2-7000A / Clear / 180.0
-0.53 ± 1.15
Qatar-5b (LOW)
2020-11-05
John Savage
Z42 Rushay Farm Observatory
Celestron 14Edge
ZWO ASI6200MM / R / 60.0
3.35 ± 2.02
Qatar-5b (LOW)
2020-10-31
Pere Guerra
Observatori Astronòmic Albanyà
16" Meade ACF F8
Moravian G4-9000 / AstrodonExoPlanet-BB / 100.0
1.91 ± 1.87
Qatar-5b (LOW)
2020-10-10
Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / Lum / 90.0
-0.97 ± 0.58
Qatar-5b (LOW)
2020-09-17
Danilo Sedita
Osservatorio Sedita Castrofilippo
RC GSO 14"
Moravian G2-1600 / R / 60.0
-2.12 ± 1.58
Qatar-5b (LOW)
2017-08-21
Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 120.0
3.19 ± 0.86
Qatar-5b (LOW)
2017-08-21
Mario Morales-Aimar
Observatorio de Sencelles MPC K14
10" Meade Schmidt Cassegrain
SBIG ST7-XME / Clear / 120.0
-1.13 ± 2.88

Space Observations

Planet
Observation Date
Mission O-C
minutes
Qatar-5b (LOW)
2019-10-28
TESS-1.26 ± 1.73
Qatar-5b (LOW)
2019-10-25
TESS2.91 ± 1.58
Qatar-5b (LOW)
2019-10-22
TESS-1.84 ± 1.73
Qatar-5b (LOW)
2019-10-14
TESS1.62 ± 1.58
Qatar-5b (LOW)
2019-10-11
TESS1.28 ± 1.3
Qatar-5b (LOW)
2019-10-08
TESS-0.69 ± 1.44

Literature Mid-times

Planet
Observation Date
Reference O-C
minutes
2018-08-11 Mallonn et al. 2019 5.48 ± 1.83
2018-08-11 Mallonn et al. 2019 3.71 ± 2.22
2015-11-10 Alsubai et al. 2017 -0.07 ± 0.14
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