exoclock

HAT-P-19b (LOW)

Discovered by: Hartman et al. 2011

The Star
Simbad
GAIA
2MASS		 HAT-P-19
DR2 365426679516816512
J00380401+3442416
RA 00:38:04.0136 DEC +34:42:41.552
Parallax
4.92 mas		 P.M. RA
-26.775 mas/y		 P.M. DEC
-32.478 mas/y
MagV
12.901		 MagR
12.82		 MagI*
11.861		 MagJ
11.095		 MagH
10.644		 MagK
10.546
MagG
12.557		 MagGBP
13.089		 MagGRP
11.896
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457613.059809 ± 8.9e-05 BJDTDB
Period
4.00878324 ± 3.1e-07 days
Transit Parameters
Hartman et al. 2011
Rp/Rs
0.1418 ± 0.002		 a/Rs
12.2 +0.7 -0.7
 i
88.2 +0.4 -0.4 deg
e
0.07 +0.04 -0.04
 ω
256.0 +77.0 -77.0 deg
DepthR*
26.46 mmag		 Duration*
2.87 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Hartman et al. 2011
Teff
4990.0 +130.0 -130.0 K
 Log(g)
4.54 +0.05 -0.05 cm/s2
 Fe/H
0.23 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 7.43"
Total Observations (Recent) 97 (17)
O-C 0.31 ± 0.18 minutes
ExoClock Observations (Recent) 77 (17)
Space Observations (Recent) 6 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 14 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.13727 ± 0.00081

HAT-P-19b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-19b (LOW)
2025-11-20		Jordi González-Edo
Landete-Kea		C11
ASI 2600MM pro / Lum / 90.0		1.19 ± 1.04
HAT-P-19b (LOW)
2025-11-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		1.9 ± 1.87
HAT-P-19b (LOW)
2025-11-08		samuel Diaz Lopez
Tomas Lopez (AstroCamp)		SCA260
ASI2600MM / rpr / 180.0		4.81 ± 1.43
HAT-P-19b (LOW)
2025-10-27		Jordi González-Edo
Landete-Kea		C11
ASI 2600MM pro / Lum / 90.0		-0.38 ± 0.68
HAT-P-19b (LOW)
2025-10-23		Snaevarr Guðmundsson
Ness Observatory		Meade LX 200 ACF Schmidt-Cassegrain
SBIG STL 11000M / R / 120.0		-0.48 ± 0.72
HAT-P-19b (LOW)
2025-10-19		Pieter Vuylsteke
Marvel (La Palma)		ASA Ritchey
ZWO 6200mm / rpr / 200.0		2.42 ± 0.48
HAT-P-19b (LOW)
2025-10-15		Fabio Mortari
Hypatia Observatory		Ritchey Chretienne 250mm f/5.3
MORAVIAN C2-7000A / R / 200.0		1.63 ± 1.31
HAT-P-19b (LOW)
2025-10-15		Eric BARBOTIN
Observatoire de la grande vallée		PlaneWave 20"
ZWO6200 / R / 60.0		1.33 ± 0.6
HAT-P-19b (LOW)
2025-10-11		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		2.27 ± 1.07
HAT-P-19b (LOW)
2025-10-11		Yann LE GALL
Trevinca Skies		Newton
Ares M pr imx533 / rpr / 120.0		-2.47 ± 2.16
HAT-P-19b (LOW)
2025-10-07		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / I / 240.0		1.11 ± 4.32
HAT-P-19b (LOW)
2025-10-07		David Molina
Anunak iObservatory		S/C
KAF 8300 / Clear / 180.0		-1.92 ± 2.3
HAT-P-19b (LOW)
2025-09-29		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / R / 240.0		0.18 ± 1.35
HAT-P-19b (LOW)
2025-09-29		Vojtěch Školník
Hvězdárna v Úpici		SW N200/800
MI C2-7000A / Clear / 120.0		-3.78 ± 1.11
HAT-P-19b (LOW)
2025-09-25		Trevor Gainey
Kismet		Meade LX200
ZWO ASI 294 MC Pro / R / 130.0		-3.14 ± 2.02
HAT-P-19b (LOW)
2025-09-21		Vojtěch Školník
Broumov NM Observatory		Meade LX90 ACF
MI C2-7000A / Clear / 120.0		-0.42 ± 1.12
HAT-P-19b (LOW)
2025-09-21		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 180.0		-2.45 ± 1.58
HAT-P-19b (LOW)
2024-11-25		Leon Bewersdorff
Starfront Observatories		Corrected Ritchey-Chrétien
QHY268M / AstrodonExoPlanet-BB / 120.0		-0.67 ± 0.84
HAT-P-19b (LOW)
2024-09-26		Gustavo Muler
Obs. Nazaret J47		lx 200
ST8 XME AO8 / R / 60.0		-7.35 ± 1.44
HAT-P-19b (LOW)
2024-09-22		Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"		NEWTON 410/1710
Player One Astronomy Poseidon-M Pro (IMX571) / rpr / 60.0		2.36 ± 1.34
HAT-P-19b (LOW)
2024-09-14		Gustavo Muler
Obs. Nazaret J47		lx 200
ST8 XME AO8 / R / 120.0		1.0 ± 0.75
HAT-P-19b (LOW)
2024-09-06		samuel Diaz Lopez
Tomas Lopez (AstroCamp)		RC10
Atik16200M / Clear / 180.0		4.19 ± 1.87
HAT-P-19b (LOW)
2024-08-28		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0		5.15 ± 1.87
HAT-P-19b (LOW)
2024-08-28		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-0.05 ± 0.78
HAT-P-19b (LOW)
2024-08-20		Sacha Foschino
Observatoire des Baronnies Provençales		Planewave 430mm
SVO ASI 6200 MM Pro / R / 120.0		4.38 ± 1.58
HAT-P-19b (LOW)
2024-08-20		Zlatko Orbanić
Explorer		Newton Truss 254mm F/3.8
Atik 414 Ex Mono / rpr / 70.0		0.06 ± 1.87
HAT-P-19b (LOW)
2024-08-20		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 300.0		-1.64 ± 1.28
HAT-P-19b (LOW)
2024-08-20		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / rpr / 120.0		-5.55 ± 2.88
HAT-P-19b (LOW)
2024-08-12		Vojtěch Školník
Hvězdárna v Úpici		SW N200/800
MI C2-7000A / Clear / 150.0		1.48 ± 1.09
HAT-P-19b (LOW)
2024-08-12		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 120.0		-0.32 ± 0.84
HAT-P-19b (LOW)
2024-08-12		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 110.0		-1.04 ± 1.41
HAT-P-19b (LOW)
2024-08-12		Federico Palaia
Civico osservatorio astronomico di Rozzano		Meade ACF
SBIG ST10-XME / Clear / 150.0		-1.28 ± 2.02
HAT-P-19b (LOW)
2024-08-12		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-1.64 ± 0.89
HAT-P-19b (LOW)
2024-08-08		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-3.34 ± 1.07
HAT-P-19b (LOW)
2024-07-27		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / Lum / 240.0		-2.96 ± 3.02
HAT-P-19b (LOW)
2023-10-05		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 180.0		-0.29 ± 2.02
HAT-P-19b (LOW)
2023-09-19		Charles Miller
Miller Observatory		Meade 12" LX850
QHY268M / R / 60.0		1.42 ± 0.98
HAT-P-19b (LOW)
2023-08-18		Kevin Hills
Tacande		ASA 0.5m f/3.6 astrograph.
QHY 600M with IMX 455 chip / R / 80.0		2.16 ± 0.81
HAT-P-19b (LOW)
2023-07-13		Tobias Gesser
TURMX Observatory		Planewave CDK17
QHY600M / rpr / 120.0		1.04 ± 0.98
HAT-P-19b (LOW)
2022-08-30		Bryan Martin
Tiger Butte Observatory		AG Optical IDK
ZWO ASI 294 / AstrodonExoPlanet-BB / 120.0		2.05 ± 1.44
HAT-P-19b (LOW)
2022-08-30		Andre Kovacs
MicroObservatory Cecillia		152mm Maksutov
Kodak KAF-1402ME / Clear / 60.0		-1.98 ± 3.17
HAT-P-19b (LOW)
2021-12-20		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		1.25 ± 2.02
HAT-P-19b (LOW)
2021-12-16		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		2.24 ± 3.17
HAT-P-19b (LOW)
2021-12-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		-0.09 ± 2.3
HAT-P-19b (LOW)
2021-12-12		Andras Dan
Rocca1		Celestron C8
QHY 183 M / AstrodonExoPlanet-BB / 60.0		-2.25 ± 1.15
HAT-P-19b (LOW)
2021-12-12		Dominique DANIEL
La Montjoie		Celestron CGX C8 XLT
Camera CMOS ZWO ASI294MC pro (color) / Clear / 180.0		-2.97 ± 2.16
HAT-P-19b (LOW)
2021-11-10		Vikrant Kumar Agnihotri
Cepheid Observatory India		C8/f6.3 Schmidt-Cassegrain
Atik383L+ mono / R / 60.0		1.3 ± 2.45
HAT-P-19b (LOW)
2020-11-10		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		1.84 ± 0.86
HAT-P-19b (LOW)
2020-11-06		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		-0.65 ± 0.91
HAT-P-19b (LOW)
2020-10-17		Jean-Bernard Pioppa
La Roque-Esclapon		KEPLER
ATIK 383 L+ / Clear / 240.0		3.13 ± 1.3
HAT-P-19b (LOW)
2020-10-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		0.4 ± 0.86
HAT-P-19b (LOW)
2020-10-17		Francois Regembal
HRTobs		Astrosib RC360
SBIG STX 16803 / Lum / 120.0		-0.47 ± 1.3
HAT-P-19b (LOW)
2020-10-13		Fabio Mortari
Osservatorio Astronomico MONTE SAN LORENZO		Ritchey Chretienne
SBIG ST8-XME / Clear / 50.0		-0.35 ± 0.43
HAT-P-19b (LOW)
2020-10-01		Nikolaos Paschalis
Nunki Observatory		Officina Stellare RILA 400
SBIG STXL 11002 / R / 60.0		3.04 ± 3.17
HAT-P-19b (LOW)
2019-10-11		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		-0.41 ± 0.86
HAT-P-19b (LOW)
2019-09-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		2.04 ± 0.72
HAT-P-19b (LOW)
2019-09-13		Marc Deldem
Les Barres Observatory		Celestron C8
SBIG ST8-XME / Clear / 120.0		1.73 ± 1.01
HAT-P-19b (LOW)
2019-08-31		Pavel Pintr
Horni Halze		Celestron C9.25 with Hyperstar f2.2
ASI ZWO 1600 MONO / Clear / 130.0		0.94 ± 1.01
HAT-P-19b (LOW)
2019-08-15		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		3.43 ± 0.86
HAT-P-19b (LOW)
2018-08-08		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH3 i / ipr / 10.0		0.14 ± 0.36
HAT-P-19b (LOW)
2018-08-08		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH4 z / zpr / 15.0		-0.41 ± 0.43
HAT-P-19b (LOW)
2018-08-08		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH1 g / gpr / 10.0		-0.8 ± 0.37
HAT-P-19b (LOW)
2018-08-08		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B - CH2 r / rpr / 6.0		-1.09 ± 0.32
HAT-P-19b (LOW)
2018-08-04		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH3 i / ipr / 15.0		-0.31 ± 0.27
HAT-P-19b (LOW)
2018-08-04		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B - CH2 r / rpr / 15.0		-1.7 ± 0.27
HAT-P-19b (LOW)
2018-07-23		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH3 i / ipr / 15.0		0.43 ± 0.4
HAT-P-19b (LOW)
2018-07-23		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH1 g / gpr / 25.0		0.28 ± 0.43
HAT-P-19b (LOW)
2018-07-23		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B - CH2 r / rpr / 25.0		0.01 ± 0.32
HAT-P-19b (LOW)
2018-07-23		MUSCAT Team
Teide Observatory		Telescope Carlos Sanchez
MuSCAT2 - PIXIS: 1024B eXcelon - CH4 z / zpr / 25.0		-0.45 ± 0.52
HAT-P-19b (LOW)
2016-12-22		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		0.35 ± 0.43
HAT-P-19b (LOW)
2016-12-10		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		3.59 ± 0.72
HAT-P-19b (LOW)
2016-12-06		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		2.41 ± 1.01
HAT-P-19b (LOW)
2016-12-02		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 60.0		1.7 ± 0.35
HAT-P-19b (LOW)
2015-11-29		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 240.0		3.48 ± 1.44
HAT-P-19b (LOW)
2015-11-09		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Clear / 120.0		2.35 ± 0.86
HAT-P-19b (LOW)
2015-11-01		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Clear / 120.0		0.15 ± 0.72
HAT-P-19b (LOW)
2010-10-26		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Sbig ST8xme / R / 240.0		-0.29 ± 1.05

Space Observations
Planet
Observation Date		 Mission O-C
minutes
HAT-P-19b (LOW)
2022-10-25		TESS-1.44 ± 0.86
HAT-P-19b (LOW)
2022-10-21		TESS1.06 ± 0.86
HAT-P-19b (LOW)
2022-10-17		TESS-0.15 ± 0.79
HAT-P-19b (LOW)
2022-10-09		TESS-1.05 ± 0.84
HAT-P-19b (LOW)
2022-10-05		TESS-0.28 ± 0.78
HAT-P-19b (LOW)
2022-10-01		TESS-1.48 ± 0.92

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2020-11-10 Maciejewski et al. 2023 -0.18 ± 0.31
2020-10-21 Maciejewski et al. 2023 0.06 ± 0.81
2017-11-16 Wang et al. 2021 3.89 ± 0.95
2015-11-05 Baștürk et al. 2020 -0.8 ± 0.42
2015-10-28 Baștürk et al. 2020 -0.75 ± 0.65
2015-10-04 Baștürk et al. 2020 0.61 ± 0.36
2015-09-14 Baștürk et al. 2020 -0.77 ± 0.34
2014-10-05 Seeliger et al. 2015 0.21 ± 0.79
2014-08-21 Baștürk et al. 2020 1.45 ± 0.26
2014-07-28 Baștürk et al. 2020 -0.55 ± 0.29
2012-01-10 Mallonn et al. 2015 -0.17 ± 0.14
2011-12-17 Seeliger et al. 2015 -0.01 ± 0.49
2011-12-09 Seeliger et al. 2015 -0.07 ± 0.63
2009-09-17 Hartman et al. 2011 -0.3 ± 0.49
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