exoclock

HAT-P-9b (LOW)

Discovered by: Shporer et al. 2009

The Star
Simbad
GAIA
2MASS		 HAT-P-9
DR2 898130030131443584
J07204044+3708263
RA 07:20:40.4562 DEC +37:08:26.342
Parallax
2.169 mas		 P.M. RA
-9.63 mas/y		 P.M. DEC
-13.043 mas/y
MagV
12.34		 MagR
12.08		 MagI*
11.752		 MagJ
11.274		 MagH
11.043		 MagK
11.015
MagG
12.154		 MagGBP
12.422		 MagGRP
11.741
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2456489.15311 ± 0.00019 BJDTDB
Period
3.92281131 ± 3.9e-07 days
Transit Parameters
Wang et al. 2019
Rp/Rs
0.107 ± 0.0009		 a/Rs
8.5 +0.3 -0.3
 i
86.4 +0.4 -0.4 deg
e
0.08 +0.05 -0.05
 ω
152.0 +42.0 -39.0 deg
DepthR*
14.08 mmag		 Duration*
3.34 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Shporer et al. 2009
Teff
6350.0 +150.0 -150.0 K
 Log(g)
4.3 +0.06 -0.06 cm/s2
 Fe/H
0.12 +0.2 -0.2 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.85"
Total Observations (Recent) 42 (6)
O-C -0.47 ± 0.58 minutes
ExoClock Observations (Recent) 25 (6)
Space Observations (Recent) 7 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 10 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.10781 ± 0.00084

HAT-P-9b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-9b (LOW)
2024-11-28		Alexey Garmash
Lyceum 130		SW Esprit 150ED
ASI1600MM / V / 300.0		-2.72 ± 2.59
HAT-P-9b (LOW)
2024-02-08		Vikrant Kumar Agnihotri
Cepheid Observatory India		GSO Ritchey–Chrétien
Atik383L+ mono / Lum / 90.0		-1.35 ± 1.24
HAT-P-9b (LOW)
2024-01-31		Miguel Ángel Álava Amat
Sarriguren		Meade SC 8"
Asi 1600 MM / Lum / 240.0		-5.64 ± 2.45
HAT-P-9b (LOW)
2024-01-27		Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY		Newton T305
QSI 683WS / R / 120.0		3.02 ± 6.48
HAT-P-9b (LOW)
2024-01-27		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / R / 60.0		1.86 ± 1.44
HAT-P-9b (LOW)
2024-01-27		Attilio Bruzzone
Anxanum Observatory		LX200 ACF 10"
QHY 268M / Lum / 180.0		0.57 ± 1.58
HAT-P-9b (LOW)
2023-03-27		Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY		Newton T305
QSI 683WS / Lum / 120.0		-2.63 ± 2.16
HAT-P-9b (LOW)
2023-02-08		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 120.0		1.03 ± 2.02
HAT-P-9b (LOW)
2023-02-01		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 180.0		2.5 ± 4.03
HAT-P-9b (LOW)
2023-02-01		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
ZWO ASI2600mm Pro / Lum / 110.0		2.21 ± 2.59
HAT-P-9b (LOW)
2022-12-15		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 180.0		-5.08 ± 3.02
HAT-P-9b (LOW)
2022-12-08		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 120.0		1.72 ± 2.16
HAT-P-9b (LOW)
2022-12-08		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 180.0		-3.32 ± 3.02
HAT-P-9b (LOW)
2022-12-04		Mark van der Grijp
Trevinca Observatory		William Optics FLT132
ZWO ASI2600mm Pro / Lum / 45.0		-5.9 ± 2.74
HAT-P-9b (LOW)
2021-12-20		Andras Dan
Rocca1		Celestron C8
QHY 183 M / AstrodonExoPlanet-BB / 60.0		-2.86 ± 1.58
HAT-P-9b (LOW)
2021-12-16		David Arnot
OSO PIRATE		PlaneWave Instruments CDK24 24 inch (610 mm) f/6.5 Corrected Dall-Kirkham Astrograph
FLI ProLine KAF-16803 / R / 45.0		1.19 ± 0.72
HAT-P-9b (LOW)
2021-12-16		Ulrich Kolb
OSO PIRATE		PlaneWave Instruments CDK24 24 inch (610 mm) f/6.5 Corrected Dall-Kirkham Astrograph
FLI ProLine KAF-16803 / R / 45.0		0.75 ± 1.01
HAT-P-9b (LOW)
2021-02-28		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		1.09 ± 1.3
HAT-P-9b (LOW)
2021-02-28		Fabio Mortari
Hypatia Observatory		Ritchey Chretienne 250mm f/5.3
Sbig ST8-XE / R / 200.0		-1.07 ± 1.01
HAT-P-9b (LOW)
2021-02-24		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		-1.19 ± 1.87
HAT-P-9b (LOW)
2021-02-24		Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"		NEWTON 410/1710
Custom made with KAF-1603ME CCD sensor / R / 60.0		-4.22 ± 4.46
HAT-P-9b (LOW)
2021-02-24		Fabio Mortari
Hypatia Observatory		Ritchey Chretienne 250mm f/5.3
Sbig ST8-XE / R / 120.0		-6.23 ± 4.32
HAT-P-9b (LOW)
2021-01-08		Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"		NEWTON 410/1710
Custom made with KAF-1603ME CCD sensor / R / 70.0		1.02 ± 2.45
HAT-P-9b (LOW)
2018-03-25		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 60.0		-0.36 ± 1.58
HAT-P-9b (LOW)
2016-02-19		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		-1.94 ± 2.02

Space Observations
Planet
Observation Date		 Mission O-C
minutes
HAT-P-9b (LOW)
2020-01-17		TESS2.6 ± 1.37
HAT-P-9b (LOW)
2020-01-13		TESS1.13 ± 1.44
HAT-P-9b (LOW)
2020-01-10		TESS-2.22 ± 1.44
HAT-P-9b (LOW)
2020-01-06		TESS0.03 ± 1.18
HAT-P-9b (LOW)
2020-01-02		TESS1.01 ± 1.15
HAT-P-9b (LOW)
2019-12-29		TESS-0.8 ± 1.4
HAT-P-9b (LOW)
2019-12-25		TESS1.82 ± 1.41

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2017-02-26 Wang et al. 2019 1.22 ± 1.43
2017-01-06 Wang et al. 2019 -4.89 ± 1.2
2016-12-29 Wang et al. 2019 -1.2 ± 1.66
2016-11-08 Wang et al. 2019 2.25 ± 1.34
2016-03-10 Wang et al. 2019 -2.9 ± 1.74
2016-01-11 Wang et al. 2019 0.7 ± 2.0
2010-04-06 Dittmann et al. 2012 0.95 ± 0.52
2010-02-18 Dittmann et al. 2012 0.11 ± 1.44
2010-02-14 Dittmann et al. 2012 -0.05 ± 0.46
2007-11-13 Shporer et al. 2009 -0.34 ± 0.43
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