exoclock

HAT-P-13b (LOW)

Discovered by: Bakos et al. 2009

The Star
Simbad
GAIA
2MASS		 HAT-P-13
DR2 1014520826353577088
J08393180+4721073
RA 08:39:31.8073 DEC +47:21:07.275
Parallax
4.023 mas		 P.M. RA
-24.141 mas/y		 P.M. DEC
-26.346 mas/y
MagV
10.42		 MagR
10.4		 MagI*
9.665		 MagJ
9.328		 MagH
9.058		 MagK
8.975
MagG
10.417		 MagGBP
10.789		 MagGRP
9.914
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2025
Mid-time
2457007.93881 ± 0.00013 BJDTDB
Period
2.9162417 ± 2.1e-07 days
Transit Parameters
Bakos et al. 2009
Rp/Rs
0.0844 ± 0.0013		 a/Rs
5.8 +0.3 -0.3
 i
83.4 +0.6 -0.6 deg
e
0.021 +0.009 -0.009
 ω
181.0 +45.0 -45.0 deg
DepthR*
8.25 mmag		 Duration*
3.32 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Bakos et al. 2009
Teff
5653.0 +90.0 -90.0 K
 Log(g)
4.13 +0.04 -0.04 cm/s2
 Fe/H
0.41 +0.08 -0.08 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 5.73"
Total Observations (Recent) 94 (6)
O-C -1.3 ± 0.64 minutes
ExoClock Observations (Recent) 27 (6)
Space Observations (Recent) 8 (0)
ETD Observations (Recent) 18 (0)
Literature Mid-times (Recent) 41 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.08271 ± 0.00035

HAT-P-13b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
HAT-P-13b (LOW)
2025-12-14		Tommaso Dittadi
TD-TRO		Ritchey-Chretien
Moravian G2-1600 / R / 90.0		3.56 ± 2.02
HAT-P-13b (LOW)
2025-12-08		George Iwaszek
Iwaszek Private Observatory		Planewave CDK-17
Moravian C5-100 / Lum / 60.0		-0.93 ± 2.88
HAT-P-13b (LOW)
2025-03-17		Mark Salisbury
POST		Orion Optics ODK
SBIG ST-10 XME / R / 120.0		-1.65 ± 1.41
HAT-P-13b (LOW)
2025-02-05		Simon Dawes
William James II		Celestron Edge11 HD
Risingcam Monochrome SONY imx571 / Lum / 60.0		-6.29 ± 2.45
HAT-P-13b (LOW)
2025-02-02		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280/1850 (C11 with Starizona reducer)
Moravian Instruments G2-1600 / R / 120.0		-1.05 ± 2.02
HAT-P-13b (LOW)
2025-01-12		Yen-Hsing Lin
Starry House Observatory		Mewlon 300 CRS
ASI 6200MM Pro / Lum / 60.0		2.11 ± 1.44
HAT-P-13b (LOW)
2024-10-25		Michael Nezel
Celle Observatory		CDK 14
QHY 268M / V / 75.0		-8.37 ± 1.87
HAT-P-13b (LOW)
2024-04-01		Esteban Reina
Observatori de Masquefa		Meade LX200
ZWO ASI 294 MM Pro / R / 120.0		-5.11 ± 2.16
HAT-P-13b (LOW)
2024-01-25		Attilio Bruzzone
Anxanum Observatory		LX200 ACF 10"
QHY 268M / Lum / 60.0		4.19 ± 2.45
HAT-P-13b (LOW)
2023-02-12		Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)		Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 30.0		-3.78 ± 4.03
HAT-P-13b (LOW)
2023-02-04		Fabio Mortari
Hypatia Observatory		Ritchey Chretienne 250mm f/5.3
MORAVIAN C2-7000A / R / 200.0		-4.61 ± 2.3
HAT-P-13b (LOW)
2022-02-27		Mark Salisbury
POST		Orion Optics ODK
SBIG ST-10 XME / R / 120.0		4.72 ± 1.87
HAT-P-13b (LOW)
2022-02-27		Simon Dawes
William James II Observatory		Skywatcher MN190 2
ZWO ASI 1600MM-PRO USB 3.0 Mono Camera / Lum / 20.0		3.13 ± 4.32
HAT-P-13b (LOW)
2022-02-27		Adrian Jones
Private Observatory (I64)		Meade ACF 30cm
QSI 583 / R / 60.0		0.97 ± 1.73
HAT-P-13b (LOW)
2022-02-24		Jack-Skye Lloyd-Walters
Hampshire Astronomical Group, Clanfield		Ritchey-Chrétien
Starlight Xpress SX-46 / R / 90.0		4.63 ± 2.88
HAT-P-13b (LOW)
2022-01-23		Stéphane Montchaud
Burgundy Observatory		Celestron 8
Zwo Asi 1600 / Lum / 60.0		-2.77 ± 2.74
HAT-P-13b (LOW)
2021-04-18		Tõnis Eenmäe
Tartu Observatory		Planewave CDK 12.5
Apogee Alta U42 / R / 20.0		1.27 ± 2.3
HAT-P-13b (LOW)
2021-02-10		Ferran Grau Horta
Ca L'Ou		Meade ACF 16''
FLI Proline PL1001 / R / 40.0		-0.23 ± 1.44
HAT-P-13b (LOW)
2021-02-07		Yves Jongen
Rasteau Observatory		Plane Wave CDK 17"
SBIG STXL 11002 / R / 120.0		2.56 ± 1.58
HAT-P-13b (LOW)
2020-04-01		Fabio Mortari
Hypatia Observatory		Newton 250mm f/4.9
Sbig ST8-XE / Lum / 120.0		5.97 ± 3.17
HAT-P-13b (LOW)
2020-04-01		Manfred Raetz
privat observatory Herges-Hallenberg		SCT 280 /1790 (Celestron C11 with reducer)
Moravian Instruments G2-1600 / R / 120.0		1.07 ± 1.58
HAT-P-13b (LOW)
2020-03-29		Fabio Mortari
Hypatia Observatory		Newton 250mm f/4.9
Sbig ST8-XE / Lum / 50.0		3.72 ± 1.73
HAT-P-13b (LOW)
2015-02-09		Anaël Wünsche
Observatoire des Baronnies Provençales		Astelco
FLIPL230 / V / 60.0		5.18 ± 2.45
HAT-P-13b (LOW)
2013-12-08		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Sbig ST8xme / R / 120.0		0.33 ± 2.45
HAT-P-13b (LOW)
2012-02-21		Filip Walter
Stefanik Observatory		Meade SCT
SBIG ST-10XME / R / 180.0		1.74 ± 2.16
HAT-P-13b (LOW)
2011-02-09		Filip Walter
Stefanik Observatory		Meade SCT
SBIG ST-10XME / R / 60.0		2.43 ± 7.2
HAT-P-13b (LOW)
2011-02-03		Ramon Naves
Montcabrer		Meade LX200 12" ACF
Sbig ST8xme / R / 120.0		-2.63 ± 2.3

Space Observations
Planet
Observation Date		 Mission O-C
minutes
HAT-P-13b (LOW)
2022-01-26		TESS0.08 ± 0.88
HAT-P-13b (LOW)
2022-01-23		TESS0.36 ± 0.88
HAT-P-13b (LOW)
2022-01-20		TESS0.21 ± 0.88
HAT-P-13b (LOW)
2022-01-18		TESS-1.01 ± 0.88
HAT-P-13b (LOW)
2022-01-12		TESS-0.69 ± 0.88
HAT-P-13b (LOW)
2022-01-09		TESS-0.54 ± 0.88
HAT-P-13b (LOW)
2022-01-06		TESS-1.16 ± 0.79
HAT-P-13b (LOW)
2022-01-03		TESS-1.43 ± 0.86

ETD Observations
Planet
Observation Date		 Observer(s) ETD link O-C
minutes
HAT-P-13b (LOW)
2019-03-08		Yves Jongen15520440732.64 ± 4.18
HAT-P-13b (LOW)
2019-02-04		Yves Jongen15492797252.0 ± 2.3
HAT-P-13b (LOW)
2019-01-02		Ramon Naves15465043984.82 ± 3.17
HAT-P-13b (LOW)
2019-01-02		Yves Jongen15465091233.81 ± 3.31
HAT-P-13b (LOW)
2018-12-28		Yves Jongen15460195391.49 ± 3.74
HAT-P-13b (LOW)
2018-12-28		Yves Jongen15460199190.77 ± 4.32
HAT-P-13b (LOW)
2015-02-01		Paul Benni14368380186.08 ± 3.6
HAT-P-13b (LOW)
2014-02-24		Jaroslav Trnka13933576586.48 ± 2.74
HAT-P-13b (LOW)
2014-01-15		Ramon Naves13897662066.32 ± 3.17
HAT-P-13b (LOW)
2013-10-28		Paul Benni13829958660.02 ± 1.73
HAT-P-13b (LOW)
2012-04-22		Stan Shadick13351215756.82 ± 3.89
HAT-P-13b (LOW)
2012-02-12		Stan Shadick1331931753-3.41 ± 2.16
HAT-P-13b (LOW)
2012-01-17		Juanjo Gonzalez13267966021.74 ± 2.74
HAT-P-13b (LOW)
2012-01-08		Stan Shadick1327944943-3.12 ± 2.59
HAT-P-13b (LOW)
2011-12-10		Jaroslav Trnka13235550230.51 ± 2.16
HAT-P-13b (LOW)
2011-02-09		Luboš Brát1297294943-0.45 ± 3.17
HAT-P-13b (LOW)
2010-04-21		Stan Shadick1271960600-6.05 ± 3.6
HAT-P-13b (LOW)
2010-03-20		Stan Shadick12700772984.41 ± 3.17

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2018-03-08 Sun et al. 2023 0.48 ± 1.45
2017-03-23 Sun et al. 2023 1.95 ± 0.95
2016-12-02 Sun et al. 2023 0.49 ± 4.2
2015-11-16 Sun et al. 2023 -0.38 ± 1.27
2014-12-01 Sun et al. 2023 3.94 ± 2.62
2014-03-08 Sun et al. 2023 1.48 ± 1.45
2014-02-13 Sada et al. 2016 4.03 ± 2.0
2014-01-26 Sun et al. 2023 -0.26 ± 1.07
2014-01-23 Sun et al. 2023 0.97 ± 1.83
2013-12-19 Sun et al. 2023 -1.34 ± 1.51
2013-03-03 Sada et al. 2016 2.2 ± 1.61
2013-03-03 Turner et al. 2016 -3.7 ± 2.02
2013-01-24 Sada et al. 2016 4.24 ± 1.68
2013-01-06 Sun et al. 2023 0.12 ± 1.63
2012-01-08 Sada et al. 2016 0.22 ± 2.23
2011-04-17 Southworth et al. 2012 -3.56 ± 1.81
2011-03-02 Fulton et al. 2011 -0.7 ± 2.38
2011-03-02 Sada et al. 2016 -1.59 ± 1.73
2011-02-27 Fulton et al. 2011 0.15 ± 1.93
2011-02-24 Fulton et al. 2011 1.99 ± 2.18
2011-02-21 Fulton et al. 2011 -1.98 ± 3.23
2011-02-09 Nascimbeni et al. 2011 1.21 ± 2.4
2011-02-06 Southworth et al. 2012 -0.1 ± 1.44
2011-02-06 Nascimbeni et al. 2011 -1.12 ± 1.51
2011-02-03 Nascimbeni et al. 2011 -1.38 ± 4.31
2011-02-03 Southworth et al. 2012 -6.56 ± 2.91
2011-02-01 Nascimbeni et al. 2011 0.05 ± 1.66
2011-02-01 Southworth et al. 2012 -4.03 ± 2.66
2011-01-29 Pál et al. 2011 0.41 ± 2.58
2011-01-26 Sada et al. 2016 3.51 ± 2.17
2011-01-23 Sada et al. 2016 -0.59 ± 1.7
2011-01-02 Nascimbeni et al. 2011 0.75 ± 3.9
2010-12-28 Pál et al. 2011 -4.7 ± 1.41
2010-11-11 Fulton et al. 2011 2.48 ± 2.03
2010-03-20 Fulton et al. 2011 2.71 ± 3.83
2010-02-13 Sada et al. 2016 -1.15 ± 2.84
2010-02-04 Fulton et al. 2011 -3.16 ± 1.32
2009-12-31 Fulton et al. 2011 2.57 ± 1.83
2009-12-28 Fulton et al. 2011 -1.17 ± 3.3
2009-12-11 Sada et al. 2016 -0.13 ± 0.32
2008-11-09 Bakos et al. 2009 0.56 ± 0.55
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