exoclock

HAT-P-16b (LOW)

Discovered by: Buchhave et al. 2010

The Star
Simbad
GAIA
2MASS		 HAT-P-16
DR2 381592313648387200
J00381756+4227470
RA 00:38:17.5584 DEC +42:27:47.216
Parallax
4.386 mas		 P.M. RA
-21.564 mas/y		 P.M. DEC
-4.588 mas/y
MagV
10.91		 MagR*
10.553		 MagI*
10.284		 MagJ
9.85		 MagH
9.623		 MagK
9.553
MagG
10.757		 MagGBP
11.053		 MagGRP
10.327
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457950.68753 ± 8.8e-05 BJDTDB
Period
2.77596741 ± 1.4e-07 days
Transit Parameters
Buchhave et al. 2010
Rp/Rs
0.1071 ± 0.0014		 a/Rs
7.2 +0.3 -0.3
 i
86.6 +0.7 -0.7 deg
e
0.036 +0.004 -0.004
 ω
214.0 +8.0 -8.0 deg
DepthR*
14.45 mmag		 Duration*
3.07 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Buchhave et al. 2010
Teff
6158.0 +80.0 -80.0 K
 Log(g)
4.34 +0.03 -0.03 cm/s2
 Fe/H
0.17 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.0"
Total Observations (Recent) 94 (10)
O-C -1.1 ± 0.21 minutes
ExoClock Observations (Recent) 65 (10)
Space Observations (Recent) 14 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 15 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.10762 ± 0.00029

HAT-P-16b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-16b (LOW)
2026-01-24		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / R / 120.0		-0.74 ± 0.85
HAT-P-16b (LOW)
2025-12-30		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / AstrodonExoPlanet-BB / 90.0		-0.6 ± 0.45
HAT-P-16b (LOW)
2025-12-30		Trevor Gainey
Kismet		Meade LX200
ZWO ASI 294 MC Pro / R / 50.0		-1.38 ± 1.34
HAT-P-16b (LOW)
2025-12-05		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 60.0		-0.27 ± 0.94
HAT-P-16b (LOW)
2025-11-21		Arturo Martín Saura
OBSERVATORIO SURESTE ESTELAR		SC C8
ASI294mm pro / R / 120.0		1.82 ± 1.28
HAT-P-16b (LOW)
2025-09-21		Fabio Mortari
Hypatia Observatory		Ritchey Chretienne 250mm f/5.3
MORAVIAN C2-7000A / R / 120.0		1.25 ± 3.31
HAT-P-16b (LOW)
2025-09-16		Bryan Esry
Bryan Esry/BME Obsevvatory		Celestron EdgeHD 8
ASI 294mm Pro / V / 35.0		1.04 ± 0.85
HAT-P-16b (LOW)
2025-09-08		LES BRAND
BLEB		GSO RC8
ZWO ASI1600mm pro / V / 120.0		5.48 ± 2.02
HAT-P-16b (LOW)
2025-09-08		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 99.0		-2.04 ± 0.81
HAT-P-16b (LOW)
2025-08-19		Kohji Tsumura
Tokyo City University		Vixen VC200L
ZWO ASI 1600MM-PRO / R / 60.0		1.84 ± 3.02
HAT-P-16b (LOW)
2024-11-28		Deborah Smith
Complejo Astronomico Los Coloraos, Gorafe		C9.25
QHY9 / R / 60.0		-0.63 ± 1.35
HAT-P-16b (LOW)
2024-11-28		Pieter Vuylsteke
TheGardenToTheSkyFacility		TS ONTC 25cm f4.7
QHY 268M / rpr / 60.0		-2.47 ± 0.76
HAT-P-16b (LOW)
2024-11-06		Lee YuHsien
KMSH Observatory		C14HD
QSI-660 / R / 40.0		-3.57 ± 1.73
HAT-P-16b (LOW)
2024-11-03		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 60.0		-2.58 ± 0.78
HAT-P-16b (LOW)
2024-10-21		Gustavo Muler
Obs. Nazaret J47		lx 200
ST8 XME AO8 / R / 100.0		-1.5 ± 0.79
HAT-P-16b (LOW)
2024-09-14		John Savage
Rushay Farm Z42		Skywatcher Esprit 150
ZWO ASI 6200MM / Lum / 30.0		-1.35 ± 0.91
HAT-P-16b (LOW)
2024-09-14		Jordi Gallego
Fosca Nit Observatory		Takahashi TOA-150
STL-11000 M / rpr / 120.0		-1.72 ± 2.45
HAT-P-16b (LOW)
2024-09-14		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		-3.16 ± 1.58
HAT-P-16b (LOW)
2024-09-01		Alessandro Marchini
Astronomical Observatory University of Siena		Mak-Cas 0.3m f/5.6
Sbig STL-6303 / I / 120.0		-1.71 ± 1.14
HAT-P-16b (LOW)
2024-08-07		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 40.0		-0.83 ± 0.88
HAT-P-16b (LOW)
2024-08-07		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 45.0		-1.37 ± 1.73
HAT-P-16b (LOW)
2024-07-26		Nikola Antonov
Meshtitsa		Sky-Watcher Explorer PDS
ASI 533MM Pro Mono CMOS / R / 60.0		-5.74 ± 1.58
HAT-P-16b (LOW)
2024-01-11		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		3.89 ± 2.02
HAT-P-16b (LOW)
2023-12-17		Davide Pica
Private Observatory		Celestron C9.25
QHY 294 M Pro / Lum / 60.0		5.92 ± 2.16
HAT-P-16b (LOW)
2023-12-17		Gunther Fleerackers
gufle		Ritchey-Chrétien
QHY294M / V / 180.0		1.6 ± 1.58
HAT-P-16b (LOW)
2023-12-17		Marc Serrau
A77 - Dauban		Meade SC 12"
QHY260MM / rpr / 60.0		-1.77 ± 1.32
HAT-P-16b (LOW)
2023-12-17		Fernando Linsalata
Oste_space_observatory		SkyWacher f/5
ZWO - ASI533 MC Pro / Clear / 30.0		-2.29 ± 1.87
HAT-P-16b (LOW)
2023-10-03		Lionel Rousselot
Private observatory Vierzon		Newton 250/740
ZWO 533 monochrome / Lum / 30.0		0.19 ± 1.58
HAT-P-16b (LOW)
2023-10-03		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 150.0		0.04 ± 2.02
HAT-P-16b (LOW)
2023-09-08		Guillaume Bernard
Bernard Guillaume		Kepler GSO RC 200
ZWO ASI GT 1600 / Clear / 120.0		2.5 ± 1.58
HAT-P-16b (LOW)
2023-09-08		Claudio Lopresti
Claudio Lopresti		Mak-Newton
CCD Sbig ST10xme / I / 180.0		1.95 ± 1.28
HAT-P-16b (LOW)
2023-09-08		Matthieu Bachschmidt
Gonachon		Celestron C11
SBIG ST8XME / AstrodonExoPlanet-BB / 60.0		-0.01 ± 0.73
HAT-P-16b (LOW)
2023-09-08		Gunther Fleerackers
gufle		Ritchey-Chrétien
QHY294M / V / 180.0		-1.39 ± 1.87
HAT-P-16b (LOW)
2023-09-08		Raphael Nicollerat
Observatoire des Valentines K17		Ritchey Chretien
Moravian C3-26000 PRO / Lum / 60.0		-3.2 ± 1.38
HAT-P-16b (LOW)
2023-08-23		Bryan Martin
Tiger Butte Observatory Remote		AG Optical IDK
ZWO ASI 294 / R / 90.0		0.63 ± 2.74
HAT-P-16b (LOW)
2023-08-01		Miguel Ángel Álava Amat
Sarriguren		Meade SC 8"
Asi 1600 MM / rpr / 180.0		-1.12 ± 1.35
HAT-P-16b (LOW)
2023-01-04		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 60.0		2.5 ± 1.87
HAT-P-16b (LOW)
2022-12-10		christian PANTACCHINI
Observatoire de BENAYES		Skywhatcher Newton
SBIG STF-8300M / V / 120.0		0.17 ± 1.37
HAT-P-16b (LOW)
2022-10-21		Athanasios Douvris
Athanasios Douvris		SW 254/1200
Atik 16 / V / 60.0		-5.02 ± 1.35
HAT-P-16b (LOW)
2022-10-16		Bryan Martin
Tiger Butte Observatory		AG Optical IDK
ZWO ASI 294 / AstrodonExoPlanet-BB / 45.0		1.86 ± 2.74
HAT-P-16b (LOW)
2022-10-08		Thomas Wocial
Coppetts Observatory		Celestron C8
QHY183M / Clear / 30.0		-0.89 ± 1.43
HAT-P-16b (LOW)
2022-09-13		David Arnot
OSO PIRATE		PlaneWave Instruments CDK24 24 inch (610 mm) f/6.5 Corrected Dall-Kirkham Astrograph
FLI ProLine KAF-16803 / R / 35.0		0.6 ± 0.72
HAT-P-16b (LOW)
2021-12-17		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Clear / 120.0		5.53 ± 2.45
HAT-P-16b (LOW)
2021-12-17		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 90.0		-2.11 ± 1.15
HAT-P-16b (LOW)
2021-11-22		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0		0.64 ± 0.58
HAT-P-16b (LOW)
2021-10-28		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		-0.07 ± 1.15
HAT-P-16b (LOW)
2021-10-14		Jean-Baptiste Marquette
MrKite47		Newton Sky-Watcher 200/1000
ZWO ASI183MM Pro / R / 90.0		-3.33 ± 1.58
HAT-P-16b (LOW)
2021-10-03		David Wright
Yorick (private observatory)		10" Ritchey-Chretien
QSI 683WSG-8 / R / 60.0		4.69 ± 1.15
HAT-P-16b (LOW)
2021-10-03		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0		2.82 ± 1.15
HAT-P-16b (LOW)
2021-10-03		Tõnis Eenmäe
Tartu Observatory		Planewave CDK 12.5
Apogee Alta U42 / B / 120.0		2.82 ± 2.02
HAT-P-16b (LOW)
2021-10-01		Dominique DANIEL
La Montjoie		Celestron CGX C8 XLT
Camera CMOS ZWO ASI294MC pro (color) / Clear / 75.0		6.08 ± 2.3
HAT-P-16b (LOW)
2021-09-06		Kevin Johnson
Holbrook Observatory		Meade LX10 EMC
Atik 383L+ / Lum / 210.0		1.2 ± 2.3
HAT-P-16b (LOW)
2021-08-25		Didier Laloum
Observatoire Privé du Mont (OPM)		RC 8 GSO
Atik 383L+ / I / 120.0		2.16 ± 2.59
HAT-P-16b (LOW)
2020-10-07		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 60.0		0.17 ± 1.15
HAT-P-16b (LOW)
2020-09-12		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0		-0.39 ± 0.72
HAT-P-16b (LOW)
2020-09-12		Mauro Caló
Cavallino		RC
SBIG ST10 / Lum / 40.0		-1.83 ± 1.3
HAT-P-16b (LOW)
2020-07-25		Anaël Wünsche
Observatoire des Baronnies Provençales		CDK Planewave
SBIG STL11K / Clear / 120.0		1.07 ± 1.15
HAT-P-16b (LOW)
2020-07-25		Iakovos Strikis
Elizabeth Observatory of Athens		Sky Watcher Quattro
SBIG STF-8300mm / R / 30.0		-1.24 ± 1.3
HAT-P-16b (LOW)
2019-12-04		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 60.0		2.02 ± 1.58
HAT-P-16b (LOW)
2019-10-15		Mario Morales-Aimar
Observatorio de Sencelles MPC K14		Reflector 10"
SBIG ST7-XME / V / 80.0		2.33 ± 1.15
HAT-P-16b (LOW)
2019-09-07		Martin Crow
Burnham Observatory		Celestron C9.25
SX694 mono / R / 60.0		3.97 ± 1.73
HAT-P-16b (LOW)
2019-09-07		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / V / 120.0		2.53 ± 1.01
HAT-P-16b (LOW)
2016-09-24		Marc Deldem
Les Barres Observatory		Celestron C8
SBIG ST8-XME / Clear / 60.0		-0.27 ± 1.44
HAT-P-16b (LOW)
2016-09-11		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Moravian G4-9000 / rpr / 120.0		-0.77 ± 1.11
HAT-P-16b (LOW)
2015-01-28		Antonio Marino
UAN c/o INAF-Osservatorio Astronomico di Capodimonte, Naples ITALY		SC11
CCD Atik 314L / Clear / 90.0		-1.28 ± 2.3

Space Observations
Planet
Observation Date		 Mission O-C
minutes
HAT-P-16b (LOW)
2022-10-27		TESS-0.23 ± 0.55
HAT-P-16b (LOW)
2022-10-24		TESS-0.88 ± 0.59
HAT-P-16b (LOW)
2022-10-21		TESS-0.15 ± 0.55
HAT-P-16b (LOW)
2022-10-19		TESS0.49 ± 0.62
HAT-P-16b (LOW)
2022-10-16		TESS-0.33 ± 0.55
HAT-P-16b (LOW)
2022-10-05		TESS-0.06 ± 0.58
HAT-P-16b (LOW)
2022-10-02		TESS-0.44 ± 0.59
HAT-P-16b (LOW)
2019-10-29		TESS0.33 ± 0.55
HAT-P-16b (LOW)
2019-10-26		TESS-0.72 ± 0.58
HAT-P-16b (LOW)
2019-10-24		TESS0.21 ± 0.58
HAT-P-16b (LOW)
2019-10-21		TESS-1.51 ± 0.6
HAT-P-16b (LOW)
2019-10-15		TESS-0.54 ± 0.6
HAT-P-16b (LOW)
2019-10-13		TESS-0.07 ± 0.66
HAT-P-16b (LOW)
2019-10-10		TESS-0.83 ± 0.55

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2017-01-19 Wang et al. 2021 -2.33 ± 1.44
2016-11-13 Sun et al. 2023 -0.16 ± 0.46
2013-11-02 Turner et al. 2016 0.72 ± 0.86
2013-10-08 Sada et al. 2016 -1.92 ± 0.82
2012-12-29 Pearson et al. 2014 -0.65 ± 0.71
2012-10-04 Ciceri et al. 2013 0.7 ± 0.43
2012-10-04 Ciceri et al. 2013 0.26 ± 0.46
2012-09-20 Sada et al. 2016 1.39 ± 0.85
2011-12-17 Sun et al. 2023 0.29 ± 1.25
2011-11-28 Sada et al. 2016 1.51 ± 0.94
2011-08-23 Ciceri et al. 2013 0.36 ± 0.49
2010-12-24 Sun et al. 2023 -0.8 ± 0.91
2010-10-30 Ciceri et al. 2013 0.09 ± 0.27
2010-10-02 Sada et al. 2016 -1.66 ± 0.68
2009-07-15 Buchhave et al. 2010 -0.21 ± 0.45
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