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Qatar-1b

Discovered by: Alsubai et al. 2011
The Star
Simbad
GAIA
2MASS
Qatar 1
DR2 2244830490514284928
J20133160+6509433
RA 20:13:31.6176 DEC +65:09:43.490
Parallax
5.359 mas
P.M. RA
12.636 mas/y
P.M. DEC
58.17 mas/y
MagV
12.84
MagR
12.65
MagI
11.71
MagJ
10.999
MagH
10.527
MagK
10.409
MagG
12.476
MagGBP
13.033
MagGRP
11.791
* calculated from GAIA magnitudes

Ephemeris - Not verified False
Collins et al. 2017
Mid-time
2456234.10322 ± 6e-05 BJDTDB
Period
1.4200242 ± 2.2e-07 days

Transit Parameters
Collins et al. 2017
Rp/Rs
0.1463 ± 0.0006
a/Rs
6.25 +0.07 -0.07
i
84.08 +0.16 -0.15 deg
e
-
ω
- deg
DepthR*
25.4 mmag
Duration*
1.66 hours
* calculated from the other parameters, using PyLightcurve

Limb Darkening Parameters
Alsubai et al. 2011
Teff
4861.0 +125.0 -125.0 K
Log(g)
4.54 +0.04 -0.04 cm/s2
Fe/H
0.2 +0.1 -0.1 dex
ExoClock Status
Observing Priority
Total Observations (Recent)
O-C minutes
Total Literature Mid-times
LOW
55 (14)
1.09±0.07
0
Qatar-1b


ExoClock Observations
Obs. Date O-C (min) Observer
Observatory
Telescope
Camera / Filter / Exp [s]
2020-10-26 3.0 ± 0.9 John Savage
Z42 Rushay Farm Observatory
Celestron 14Edge
ZWO ASI6200MM / R / 120.0
2020-09-29 -0.6 ± 0.4 Stephane Ferratfiat
Observatoire des Baronnies Provençales
Astelco
ZWO ASI6200 / Clear / 120.0
2020-09-28 0.7 ± 0.4 Taewoo Kim
Deokheung Optical Astronomy Observatory
NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 120.0
2020-09-22 0.7 ± 0.4 Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0
2020-08-19 0.4 ± 0.4 Taewoo Kim
Deokheung Optical Astronomy Observatory
NYSC 1m Telescope
FLI PL-16803 or PI SOPHIA-2048B / R / 120.0
2020-08-06 2.7 ± 0.3 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco2
ZWO ASI6200 / Clear / 120.0
2020-07-20 2.5 ± 0.6 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
2020-07-20 1.1 ± 0.6 Jacques Michelet
Saint-Auban sur l'Ouvèze
Celestron C11 Edge HD
QSI-632 WSG / Astrodon ExoPlanet-BB / 90.0
2020-07-18 1.5 ± 0.6 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0
2020-05-29 2.4 ± 2.0 Roger Dymock
MicroObservatory located at Whipple Observatory
Maksutov reflector
KAF 1402ME / Clear / 60.0
2020-05-27 0.3 ± 1.4 Francois Regembal
HRTobs
Astrosib RC360
SBIG STX 16803 / Lum / 60.0
2020-05-17 0.7 ± 0.6 Manfred Raetz
privat observatory Herges-Hallenberg
SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0
2020-05-07 3.1 ± 0.7 Mauro Calo’
Cavallino
RC
SBIG ST10 / Lum / 120.0
2020-05-07 1.0 ± 0.9 Alberto Tomatis
Alto-Observatory
RC
STL 6303 / Lum / 120.0
2019-10-20 -0.7 ± 1.2 Nick Sioulas
NOAK Observatory
SKYWATCHER
ATIK 460exm / R / 60.0
2019-09-13 -0.1 ± 0.3 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
2019-08-17 1.7 ± 0.2 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 60.0
2019-07-31 6.1 ± 0.7 Pavel Pintr
Horni Halze
Celestron C9.25 with Hyperstar f2.2
ASI ZWO 1600 MONO / Clear / 30.0
2019-07-31 -0.0 ± 0.3 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 120.0
2019-06-24 3.2 ± 0.9 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
2019-04-04 0.5 ± 0.7 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
2019-02-17 1.8 ± 0.6 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Lum / 120.0
2018-10-03 -1.8 ± 0.9 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
2018-04-24 1.3 ± 0.4 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 120.0
2017-11-09 1.2 ± 0.4 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
2017-10-23 1.3 ± 0.4 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 120.0
2017-09-16 1.1 ± 0.7 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
2016-11-29 -2.9 ± 1.9 Cédric Pereira
VT
Celestron C14
SBIG ST8-XME / I / 90.0
2016-08-03 0.3 ± 0.2 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
2016-08-03 -1.5 ± 1.7 Angelos Tsiaras
Holomon Astronomical Station
Celestron C11
ATIK4000/11000 / R / 60.0
2016-05-07 0.0 ± 2.7 Angelos Tsiaras
Holomon Astronomical Station
Celestron C11
ATIK4000/11000 / R / 60.0
2016-05-04 3.0 ± 0.9 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 180.0
2016-01-23 -1.0 ± 0.4 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
2015-12-27 1.7 ± 0.4 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Lum / 60.0
2015-11-30 1.8 ± 0.6 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 180.0
2015-11-23 0.2 ± 1.0 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
2015-10-14 1.1 ± 0.9 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 120.0
2015-10-07 1.4 ± 0.6 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 240.0
2015-09-20 2.5 ± 0.6 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 240.0
2015-09-17 -0.6 ± 0.6 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 240.0
2015-09-10 3.8 ± 0.7 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 240.0
2015-09-07 1.4 ± 0.7 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 240.0
2015-08-24 1.6 ± 0.4 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 120.0
2015-08-21 2.2 ± 0.7 Anaël Wünsche
Observatoire des Baronnies Provençales
ASA300
FLI8300M / Clear / 240.0
2015-08-21 0.7 ± 0.3 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 120.0
2015-07-18 2.9 ± 0.3 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / Clear / 240.0
2015-06-28 5.4 ± 1.0 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / Clear / 180.0
2015-06-21 0.4 ± 0.6 Anaël Wünsche
Observatoire des Baronnies Provençales
CDK Planewave
SBIG STL11K / R / 120.0
2015-01-06 -0.5 ± 0.7 Anaël Wünsche
Observatoire des Baronnies Provençales
Astelco
FLIPL230 / V / 60.0
2015-01-06 -3.3 ± 2.7 Antonio Marino
UAN c/o INAF-Osservatorio Astronomico di Capodimonte, Naples ITALY
SC11
CCD Atik 314L / Clear / 90.0
2014-02-26 -0.3 ± 1.7 Angelos Tsiaras
Holomon Astronomical Station
Celestron C11
ATIK4000/11000 / Clear / 70.0
2014-02-16 2.5 ± 1.7 Angelos Tsiaras
Holomon Astronomical Station
Celestron C11
ATIK4000/11000 / Clear / 60.0
2013-05-01 -1.0 ± 1.2 Angelos Tsiaras
Holomon Astronomical Station
Celestron C11
ATIK4000/11000 / Clear / 60.0
2012-08-07 -2.1 ± 1.0 Angelos Tsiaras
Holomon Astronomical Station
Celestron C11
ATIK4000/11000 / Clear / 60.0
2012-07-04 -3.0 ± 0.9 Claudio Lopresti
Claudio Lopresti
Mak-Newton
CCD Sbig ST10xme / V / 180.0
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