exoclock

HAT-P-37b (LOW)

Discovered by: Bakos et al. 2012

The Star
Simbad
GAIA
2MASS		 HAT-P-37
DR2 2133946843094378752
J18571105+5116088
RA 18:57:11.0562 DEC +51:16:08.849
Parallax
2.531 mas		 P.M. RA
-4.114 mas/y		 P.M. DEC
-0.854 mas/y
MagV
13.23		 MagR
13.58		 MagI*
12.41		 MagJ
12.092		 MagH
11.714		 MagK
11.667
MagG
13.262		 MagGBP
13.661		 MagGRP
12.712
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458310.9034 ± 0.00017 BJDTDB
Period
2.79744203 ± 3.6e-07 days
Transit Parameters
Maciejewski et al. 2016
Rp/Rs
0.1394 ± 0.002		 a/Rs
9.19 +0.31 -0.25
 i
86.7 +0.4 -0.3 deg
e
-		 ω
- deg
DepthR*
24.18 mmag		 Duration*
2.36 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Bakos et al. 2012
Teff
5500.0 +100.0 -100.0 K
 Log(g)
4.52 +0.06 -0.06 cm/s2
 Fe/H
0.03 +0.1 -0.1 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 9.72"
Total Observations (Recent) 113 (7)
O-C -0.83 ± 0.27 minutes
ExoClock Observations (Recent) 95 (7)
Space Observations (Recent) 0 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 18 (0)
Kepler Rp/Rs -
TESS Rp/Rs -

HAT-P-37b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-37b (LOW)
2026-06-25		Vojtěch Školník
Broumov NM Observatory		Meade LX90 ACF
MI C2-7000A / Clear / 120.0		-4.51 ± 1.18
HAT-P-37b (LOW)
2026-05-31		Hao-Yuan Duan
Lulin Observatory		GSO RC12
player one / I / 120.0		-3.3 ± 2.02
HAT-P-37b (LOW)
2026-04-30		Michael Nezel
Celle Observatory		CDK 14
QHY 268M / I / 90.0		0.3 ± 1.35
HAT-P-37b (LOW)
2026-04-30		Pavol Gajdoš
AO Kolonica		Newton 400
C4-16000 / R / 45.0		-0.21 ± 1.38
HAT-P-37b (LOW)
2025-11-05		Michael Nezel
Celle Observatory		CDK 14
QHY 268M / I / 120.0		-3.86 ± 1.73
HAT-P-37b (LOW)
2025-10-05		Ivo Silvestri
Trevinca Skies		Skywatcher Newton 250pds
ASI2600MM Duo / rpr / 200.0		-1.32 ± 2.02
HAT-P-37b (LOW)
2025-08-11		Jordi González-Edo
Landete-Kea		C11
ASI 2600MM pro / Lum / 90.0		2.91 ± 2.3
HAT-P-37b (LOW)
2025-06-18		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 120.0		-2.99 ± 1.58
HAT-P-37b (LOW)
2024-10-12		Mark Salisbury
POST		Orion Optics ODK
SBIG ST-10 XME / Clear / 240.0		0.43 ± 0.71
HAT-P-37b (LOW)
2024-10-12		Snaevarr Guðmundsson
Ness Observatory		Meade LX 200 ACF Schmidt-Cassegrain
SBIG STL 11000M / R / 120.0		-1.19 ± 0.91
HAT-P-37b (LOW)
2024-09-28		Alberto García Sánchez
Rio Cofio		MEADE LX200 Classic
SBIG ST8-XME / Clear / 160.0		2.78 ± 0.95
HAT-P-37b (LOW)
2024-09-28		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 150.0		-0.99 ± 1.12
HAT-P-37b (LOW)
2024-09-28		Alberto Tomatis
Alto-Observatory		RC
QHY 268M / Lum / 70.0		-2.49 ± 1.04
HAT-P-37b (LOW)
2024-09-28		Livia Moretti
Leavitt Observatory		Ritchey-Chrétien 10'' f/8
QHY268 / R / 240.0		-5.22 ± 1.58
HAT-P-37b (LOW)
2024-09-14		Alberto García Sánchez
Rio Cofio		MEADE LX200 Classic
SBIG ST8-XME / Clear / 160.0		0.79 ± 1.32
HAT-P-37b (LOW)
2024-08-17		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 130.0		0.15 ± 2.88
HAT-P-37b (LOW)
2024-08-17		Ian Sharp
PixelSkies		Celestron C11 Edge HD
Starlight Xpress Trius Pro SX694 / R / 120.0		-1.72 ± 1.73
HAT-P-37b (LOW)
2024-08-17		samuel Diaz Lopez
Tomas Lopez (AstroCamp)		RC10
Atik16200M / V / 180.0		-2.01 ± 2.16
HAT-P-37b (LOW)
2024-08-03		Sacha Foschino
Observatoire des Baronnies Provençales		Planewave 430mm
SVO ASI 6200 MM Pro / R / 120.0		1.31 ± 1.02
HAT-P-37b (LOW)
2024-08-03		Alberto García Sánchez
Rio Cofio		MEADE LX200 Classic
SBIG ST8-XME / Clear / 160.0		0.54 ± 1.25
HAT-P-37b (LOW)
2024-08-03		Jordi González-Edo
Landete-Kea		C11
ASI 2600MM pro / Lum / 90.0		-2.43 ± 0.86
HAT-P-37b (LOW)
2024-07-20		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-2.99 ± 2.88
HAT-P-37b (LOW)
2024-07-07		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / Clear / 200.0		-1.7 ± 1.08
HAT-P-37b (LOW)
2024-07-07		Adam Popowicz
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / R / 240.0		-2.98 ± 2.74
HAT-P-37b (LOW)
2024-06-23		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / Lum / 200.0		0.38 ± 1.05
HAT-P-37b (LOW)
2024-06-23		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 300.0		-0.66 ± 1.87
HAT-P-37b (LOW)
2024-06-09		Deborah Smith
Complejo Astronomico Los Coloraos, Gorafe		Celestron C11 EdgeHD
ASI2600MM / Lum / 150.0		1.37 ± 2.02
HAT-P-37b (LOW)
2024-06-09		David Bennett
Rickford Observatory		GSO RC
ZWO ASI2600MM Pro / R / 180.0		0.15 ± 1.32
HAT-P-37b (LOW)
2024-06-09		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / Lum / 200.0		-2.63 ± 1.2
HAT-P-37b (LOW)
2024-04-14		Gonzalo Fornas
J57 (CAAT)		MEADE LX200 Classic
ATIK ONE / Clear / 240.0		1.43 ± 1.37
HAT-P-37b (LOW)
2024-04-14		Heiko Sterner
Tower6		TS GSO 12RC CarbonTrussTube
1600MM / Clear / 15.0		-0.3 ± 1.04
HAT-P-37b (LOW)
2024-04-14		Esteban Reina
Observatori de Masquefa		Meade LX200
ZWO ASI 294 MM Pro / Clear / 120.0		-1.31 ± 2.59
HAT-P-37b (LOW)
2024-04-14		Esteban García N.
Obs. Astronómico Vega del Codorno, MPC code Y96		RC14 CFF
ZWO ASI6200MM Pro / Lum / 180.0		-2.05 ± 1.3
HAT-P-37b (LOW)
2024-04-14		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / rpr / 120.0		-3.03 ± 1.2
HAT-P-37b (LOW)
2024-04-14		Gerard Tartalo
Dark Energy Observatory		Ts Photoline triplet apo 115/800 F7
Qhy294M pro / rpr / 300.0		-3.61 ± 2.3
HAT-P-37b (LOW)
2023-11-17		Davide Pica
Private Observatory		Celestron C9.25
QHY 294 M Pro / Lum / 180.0		-0.69 ± 1.73
HAT-P-37b (LOW)
2023-10-06		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		2.41 ± 0.68
HAT-P-37b (LOW)
2023-10-06		Javier Alonso Santiago
INAF-OACT		Cassegrain 91cm
Moravian C4-1600EC / R / 60.0		-1.73 ± 0.76
HAT-P-37b (LOW)
2023-09-08		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0		-2.37 ± 1.18
HAT-P-37b (LOW)
2023-08-25		Claudio Lopresti
Claudio Lopresti		Meade LX200 12"
CCD Sbig ST9xe / R / 240.0		-3.02 ± 0.86
HAT-P-37b (LOW)
2023-07-14		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / Clear / 180.0		1.47 ± 0.84
HAT-P-37b (LOW)
2023-06-30		Sacha Foschino
Observatoire des Baronnies Provençales		Planewave 430mm
SVO ASI 6200 MM Pro / R / 120.0		2.34 ± 1.58
HAT-P-37b (LOW)
2023-06-30		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		0.72 ± 1.4
HAT-P-37b (LOW)
2023-06-25		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 180.0		7.07 ± 2.74
HAT-P-37b (LOW)
2023-06-16		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 150.0		-1.82 ± 1.58
HAT-P-37b (LOW)
2023-06-02		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0		0.82 ± 1.41
HAT-P-37b (LOW)
2023-06-02		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 150.0		0.35 ± 2.16
HAT-P-37b (LOW)
2023-05-28		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 180.0		2.77 ± 2.74
HAT-P-37b (LOW)
2023-05-19		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / Lum / 200.0		-1.13 ± 1.15
HAT-P-37b (LOW)
2023-04-08		David Bennett
Rickford Observatory		GSO RC
ZWO ASI2600MM Pro / Lum / 180.0		2.57 ± 1.44
HAT-P-37b (LOW)
2023-03-25		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 180.0		-2.03 ± 1.58
HAT-P-37b (LOW)
2022-10-24		Eric Miny
BLOIS SOLOGNE ASTRONOMIE OBSERVATORY		Newton T305
QSI 683WS / Lum / 120.0		-0.63 ± 1.73
HAT-P-37b (LOW)
2022-08-16		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 120.0		-0.41 ± 1.15
HAT-P-37b (LOW)
2022-08-02		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 180.0		-1.84 ± 1.01
HAT-P-37b (LOW)
2021-10-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		-3.09 ± 1.3
HAT-P-37b (LOW)
2021-09-05		Didier Laloum
Observatoire Privé du Mont (OPM)		RC 8 GSO
Atik 383L+ / AstrodonExoPlanet-BB / 120.0		-2.76 ± 1.58
HAT-P-37b (LOW)
2021-08-22		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 180.0		-0.15 ± 2.45
HAT-P-37b (LOW)
2021-08-22		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		-0.44 ± 1.01
HAT-P-37b (LOW)
2021-08-22		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Clear / 90.0		-4.76 ± 4.32
HAT-P-37b (LOW)
2021-08-08		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		3.32 ± 0.86
HAT-P-37b (LOW)
2021-07-11		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 70.0		-2.13 ± 1.58
HAT-P-37b (LOW)
2021-07-11		Giorgio Baj
M57		Ritchey-Chretien
Sbig STT1603 ME / Clear / 120.0		-2.85 ± 1.3
HAT-P-37b (LOW)
2021-06-14		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		4.1 ± 0.86
HAT-P-37b (LOW)
2021-05-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		2.97 ± 1.15
HAT-P-37b (LOW)
2021-05-17		Piotr Jóźwik-Wabik
Otivar dome2		Newton 12" ASA
ASI ZWO 1600MM / R / 93.0		-2.21 ± 1.87
HAT-P-37b (LOW)
2020-11-21		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0		2.03 ± 1.44
HAT-P-37b (LOW)
2020-11-21		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		-0.27 ± 1.3
HAT-P-37b (LOW)
2020-11-07		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / Clear / 120.0		-0.54 ± 1.01
HAT-P-37b (LOW)
2020-08-15		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		0.55 ± 0.86
HAT-P-37b (LOW)
2020-07-04		Massimiliano Mannucci
Osservatorio Astronomico Margherita Hack		Celestron C14
SBIG ST10 XME / Clear / 120.0		0.74 ± 0.86
HAT-P-37b (LOW)
2020-06-20		Francois Regembal
HRTobs		Astrosib RC360
SBIG STX 16803 / Lum / 120.0		4.5 ± 1.15
HAT-P-37b (LOW)
2020-05-23		Roland Casali
Alto 2000		Ritchey Chretien
Kepler 400 sCMOS / R / 30.0		2.08 ± 0.58
HAT-P-37b (LOW)
2020-04-12		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		1.69 ± 0.86
HAT-P-37b (LOW)
2019-06-28		Dim Stouraitis
Galilaios		SCT
SXVF-H9 Starlight-Xpress / R / 50.0		-0.71 ± 1.44
HAT-P-37b (LOW)
2018-09-10		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		1.4 ± 1.73
HAT-P-37b (LOW)
2018-09-10		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		0.54 ± 0.58
HAT-P-37b (LOW)
2018-08-27		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		0.99 ± 0.58
HAT-P-37b (LOW)
2018-08-13		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		-0.87 ± 1.01
HAT-P-37b (LOW)
2018-07-30		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		0.44 ± 1.15
HAT-P-37b (LOW)
2018-07-03		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / Clear / 120.0		0.9 ± 1.01
HAT-P-37b (LOW)
2018-07-03		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		-2.27 ± 0.72
HAT-P-37b (LOW)
2018-06-19		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		1.92 ± 0.72
HAT-P-37b (LOW)
2017-10-29		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		10" Meade Schmidt Cassegrain
SBIG ST7-XME / Clear / 120.0		-0.4 ± 1.73
HAT-P-37b (LOW)
2017-10-15		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 60.0		0.34 ± 0.43
HAT-P-37b (LOW)
2017-06-11		Marc Deldem
Les Barres Observatory		Celestron C8
SBIG ST8-XME / Clear / 180.0		0.33 ± 1.15
HAT-P-37b (LOW)
2017-05-28		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		-1.39 ± 1.44
HAT-P-37b (LOW)
2017-05-28		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 300.0		-1.82 ± 1.3
HAT-P-37b (LOW)
2016-08-25		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		1.58 ± 0.58
HAT-P-37b (LOW)
2016-05-21		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Lum / 120.0		-0.54 ± 0.58
HAT-P-37b (LOW)
2015-08-04		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / Clear / 240.0		-0.58 ± 0.72
HAT-P-37b (LOW)
2015-06-24		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		3.64 ± 1.15
HAT-P-37b (LOW)
2015-05-27		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 60.0		0.36 ± 1.01
HAT-P-37b (LOW)
2015-05-13		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 60.0		-3.52 ± 1.01
HAT-P-37b (LOW)
2012-09-05		Kaushkee Vats
UCLO		Celestron (C14)
SBIG STL6303E / R / 60.0		1.83 ± 2.16
HAT-P-37b (LOW)
2012-07-12		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Sbig ST8xme / Clear / 120.0		-1.43 ± 1.15

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2021-08-03 A-thano et al. 2022 -7.06 ± 3.33
2021-07-20 A-thano et al. 2022 -6.66 ± 0.75
2020-07-18 A-thano et al. 2022 -4.03 ± 1.17
2019-04-05 A-thano et al. 2022 -2.17 ± 1.37
2017-04-03 A-thano et al. 2022 -2.41 ± 1.54
2016-03-29 Wang et al. 2021 0.14 ± 1.32
2015-09-29 Maciejewski et al. 2016 -0.35 ± 1.73
2015-07-02 Turner et al. 2017 -0.05 ± 0.78
2015-07-02 Turner et al. 2017 -0.79 ± 0.81
2014-08-06 A-thano et al. 2022 -3.3 ± 1.17
2014-07-23 A-thano et al. 2022 2.16 ± 2.36
2014-06-11 A-thano et al. 2022 -3.93 ± 0.84
2014-05-28 A-thano et al. 2022 -2.21 ± 2.53
2014-02-27 Wang et al. 2021 -2.68 ± 0.85
2013-09-29 Maciejewski et al. 2016 2.86 ± 1.08
2012-10-03 Maciejewski et al. 2016 1.9 ± 1.12
2012-07-25 Maciejewski et al. 2016 0.58 ± 1.15
2011-03-21 Bakos et al. 2012 0.36 ± 0.42
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