exoclock

HAT-P-56b (LOW)

Discovered by: Huang et al. 2015

The Star
Simbad
GAIA
2MASS		 HD 262389
DR2 3385777286999240576
J06432353+2715082
RA 06:43:23.5327 DEC +27:15:08.212
Parallax
3.091 mas		 P.M. RA
-8.161 mas/y		 P.M. DEC
-22.954 mas/y
MagV
10.8		 MagR*
10.648		 MagI
9.919		 MagJ
10.068		 MagH
9.881		 MagK
9.83
MagG
10.824		 MagGBP
11.058		 MagGRP
10.467
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2458557.42921 ± 0.00012 BJDTDB
Period
2.79082548 ± 2.3e-07 days
Transit Parameters
Huang et al. 2015
Rp/Rs
0.1054 ± 0.0009		 a/Rs
6.37 +0.11 -0.11
 i
82.13 +0.18 -0.18 deg
e
-		 ω
- deg
DepthR*
10.66 mmag		 Duration*
2.3 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Huang et al. 2015
Teff
6566.0 +50.0 -50.0 K
 Log(g)
4.24 +0.01 -0.01 cm/s2
 Fe/H
-0.08 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.07"
Total Observations (Recent) 87 (7)
O-C 0.12 ± 0.55 minutes
ExoClock Observations (Recent) 43 (7)
Space Observations (Recent) 39 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 5 (0)
Kepler Rp/Rs 0.10478 ± 0.00057
TESS Rp/Rs 0.10566 ± 0.00048

HAT-P-56b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-56b (LOW)
2025-03-24		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 45.0		3.58 ± 2.02
HAT-P-56b (LOW)
2025-03-24		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 85.0		-2.18 ± 2.3
HAT-P-56b (LOW)
2025-03-24		Stephen Futcher
Emsworth N		Celestron NexStar 8SE
Starlight Xpress SX-814 / R / 120.0		-3.04 ± 2.3
HAT-P-56b (LOW)
2025-01-30		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / V / 70.0		1.11 ± 2.02
HAT-P-56b (LOW)
2025-01-30		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 120.0		-7.82 ± 2.45
HAT-P-56b (LOW)
2025-01-16		Gustavo Muler
Obs. Nazaret J47		lx 200
ST8 XME AO8 / R / 50.0		2.59 ± 1.73
HAT-P-56b (LOW)
2025-01-16		Ulisse Quadri
Bassano Bresciano Obs.		Telescopio 250 mm
CCD Starlight Xpress Trius / R / 120.0		1.44 ± 2.02
HAT-P-56b (LOW)
2025-01-02		David Wright
Goveryk (private observatory)		Ritchey-Chretien
QSI 683WSG-8 / R / 150.0		-1.4 ± 2.16
HAT-P-56b (LOW)
2024-12-19		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0		-2.37 ± 1.73
HAT-P-56b (LOW)
2024-11-22		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 236.0		-3.59 ± 3.31
HAT-P-56b (LOW)
2024-01-11		Vikrant Kumar Agnihotri
Cepheid Observatory India		GSO Ritchey–Chrétien
Atik383L+ mono / Lum / 90.0		2.62 ± 1.34
HAT-P-56b (LOW)
2024-01-08		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 30.0		0.55 ± 1.41
HAT-P-56b (LOW)
2023-12-25		Giuseppe Marino
Gruppo Astrofili Catanesi		Newtonian
SBIG ST-7 XME / Clear / 110.0		1.35 ± 1.58
HAT-P-56b (LOW)
2023-10-20		Nataliia Maslennikova
Caucasus Mountain Observatory SAI MSU		RC-600 ASA
Andor iKon-L / ipr / 10.0		0.15 ± 1.02
HAT-P-56b (LOW)
2023-04-04		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		2.1 ± 3.02
HAT-P-56b (LOW)
2023-04-04		Jean-Claude MARIO
Observatoire de la Cabergue		T 500 Cassegrain "Arp 83"
ASI 6200 MM / Lum / 60.0		0.52 ± 1.87
HAT-P-56b (LOW)
2023-04-04		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / V / 120.0		-1.21 ± 3.02
HAT-P-56b (LOW)
2023-02-10		Andre Kovacs
Moletai Astronomical Observatory (MAO)		35 cm Maksutov f/3.5
Apogee Alta U47 / R / 60.0		3.16 ± 1.21
HAT-P-56b (LOW)
2023-02-10		Lionel Rousselot
Private observatory Vierzon		Newton 250/1000
ZWO 1600 monochrome / rpr / 30.0		-0.2 ± 1.3
HAT-P-56b (LOW)
2023-02-10		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		-0.66 ± 2.02
HAT-P-56b (LOW)
2023-01-27		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 80.0		0.25 ± 2.02
HAT-P-56b (LOW)
2023-01-27		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave 2
ZWO ASI6200 / R / 120.0		-1.77 ± 1.4
HAT-P-56b (LOW)
2023-01-27		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / I / 180.0		-3.78 ± 3.46
HAT-P-56b (LOW)
2023-01-22		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 30.0		4.78 ± 2.74
HAT-P-56b (LOW)
2022-12-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 180.0		-0.5 ± 1.58
HAT-P-56b (LOW)
2022-02-01		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / I / 240.0		-1.21 ± 1.73
HAT-P-56b (LOW)
2022-01-18		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		2.72 ± 4.32
HAT-P-56b (LOW)
2022-01-04		Mark Salisbury
POST		Orion Optics ODK
SBIG ST-10 XME / R / 180.0		-0.99 ± 0.86
HAT-P-56b (LOW)
2022-01-02		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-4.84 ± 2.16
HAT-P-56b (LOW)
2021-12-08		Francesco Scaggiante
Gruppo Astrofili Salese "GALILEO GALILEI"		NEWTON 410/1710
Custom made with KAF-1603ME CCD sensor / R / 20.0		2.11 ± 1.73
HAT-P-56b (LOW)
2021-03-31		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / V / 120.0		-1.06 ± 3.02
HAT-P-56b (LOW)
2021-03-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0		-3.33 ± 1.73
HAT-P-56b (LOW)
2020-12-26		Jean-Claude MARIO
Observatoire de la Cabergue		Astrosib RC 360
STL 11000 / Clear / 120.0		-3.13 ± 1.58
HAT-P-56b (LOW)
2020-11-26		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 40.0		-3.3 ± 2.88
HAT-P-56b (LOW)
2020-10-20		Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)		Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / R / 25.0		0.92 ± 1.58
HAT-P-56b (LOW)
2020-03-22		John Savage
Z42 Rushay Farm Observatory		Celeston 14Edge with focal reducer
ATIK One 9.0 / R / 90.0		-5.08 ± 2.88
HAT-P-56b (LOW)
2020-02-23		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		-1.11 ± 1.44
HAT-P-56b (LOW)
2020-02-12		Mauro Caló
Cavallino		RC
SBIG ST10 / R / 120.0		1.34 ± 2.74
HAT-P-56b (LOW)
2020-01-29		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		2.25 ± 2.02
HAT-P-56b (LOW)
2020-01-01		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / I / 180.0		-4.15 ± 2.16
HAT-P-56b (LOW)
2019-03-28		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / V / 120.0		-3.37 ± 2.02
HAT-P-56b (LOW)
2019-02-17		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / B / 60.0		-2.42 ± 1.73
HAT-P-56b (LOW)
2018-03-19		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / V / 120.0		-2.77 ± 1.87

Space Observations
Planet
Observation Date		 Mission O-C
minutes
HAT-P-56b (LOW)
2023-12-06		TESS0.08 ± 1.41
HAT-P-56b (LOW)
2023-12-03		TESS2.24 ± 1.21
HAT-P-56b (LOW)
2023-11-28		TESS1.14 ± 1.44
HAT-P-56b (LOW)
2023-11-22		TESS1.22 ± 1.21
HAT-P-56b (LOW)
2023-11-19		TESS-0.49 ± 1.44
HAT-P-56b (LOW)
2023-11-16		TESS-1.59 ± 1.58
HAT-P-56b (LOW)
2023-11-14		TESS2.05 ± 1.44
HAT-P-56b (LOW)
2023-11-08		TESS2.41 ± 1.44
HAT-P-56b (LOW)
2023-11-05		TESS4.03 ± 1.73
HAT-P-56b (LOW)
2023-11-02		TESS-0.97 ± 1.44
HAT-P-56b (LOW)
2023-10-28		TESS-1.76 ± 2.02
HAT-P-56b (LOW)
2023-10-25		TESS-3.02 ± 1.73
HAT-P-56b (LOW)
2023-10-22		TESS-1.55 ± 2.02
HAT-P-56b (LOW)
2023-10-20		TESS0.51 ± 1.87
HAT-P-56b (LOW)
2021-11-29		TESS-2.24 ± 1.44
HAT-P-56b (LOW)
2021-11-26		TESS-2.35 ± 1.58
HAT-P-56b (LOW)
2021-11-24		TESS1.87 ± 1.44
HAT-P-56b (LOW)
2021-11-18		TESS1.79 ± 1.73
HAT-P-56b (LOW)
2021-11-15		TESS2.65 ± 1.24
HAT-P-56b (LOW)
2021-11-12		TESS0.86 ± 1.58
HAT-P-56b (LOW)
2021-11-10		TESS-0.97 ± 1.58
HAT-P-56b (LOW)
2021-11-04		TESS0.54 ± 1.58
HAT-P-56b (LOW)
2021-11-01		TESS0.72 ± 1.58
HAT-P-56b (LOW)
2021-10-29		TESS-0.54 ± 1.44
HAT-P-56b (LOW)
2021-10-27		TESS1.93 ± 1.41
HAT-P-56b (LOW)
2021-10-21		TESS0.58 ± 1.58
HAT-P-56b (LOW)
2021-10-18		TESS0.08 ± 1.38
HAT-P-56b (LOW)
2021-10-16		TESS-2.37 ± 1.44
HAT-P-56b (LOW)
2021-10-13		TESS-3.34 ± 1.87
HAT-P-56b (LOW)
2021-10-10		TESS-0.44 ± 1.18
HAT-P-56b (LOW)
2021-10-07		TESS-0.51 ± 1.22
HAT-P-56b (LOW)
2021-10-04		TESS-0.18 ± 1.22
HAT-P-56b (LOW)
2021-10-02		TESS-0.1 ± 1.22
HAT-P-56b (LOW)
2021-09-26		TESS1.17 ± 1.18
HAT-P-56b (LOW)
2021-09-23		TESS-0.28 ± 1.27
HAT-P-56b (LOW)
2021-09-20		TESS0.41 ± 1.44
HAT-P-56b (LOW)
2021-09-18		TESS-0.28 ± 1.27
HAT-P-56b (LOW)
2014-05-27		K20.17 ± 0.32
HAT-P-56b (LOW)
2014-05-02		K2-0.33 ± 0.48

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2018-02-11 Wang et al. 2021 3.76 ± 2.3
2017-03-02 Wang et al. 2021 1.54 ± 3.46
2017-01-05 Wang et al. 2021 -1.18 ± 2.02
2016-03-07 Wang et al. 2021 -1.65 ± 1.44
2013-09-18 Huang et al. 2015 1.03 ± 0.6
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